- Timestamp:
- 18/04/18 17:27:45 (19 months ago)
- File:
-
- 1 edited
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CMIP6dreqbuild/trunk/src/framework/out/annotated_20150731_chk.xml
r1187 r1198 4236 4236 <item defaultPriority="3" deflate="" deflate_level="" description="" frequency="mon" label="fbddtdin" mipTable="Emon" modeling_realm="ocnBgChem" mtid="MIPtable::Emon" positive="" prov="C4MIP [C_Ocean_T2]" provNote="" rowIndex="61" shuffle="" stid="f7e4000e-562c-11e6-a2a4-ac72891c3257" title="Rate of Change of Dissolved Inorganic Nitrogen due to Biological Activity" type="real" uid="e70907b4-aa7f-11e6-9a4a-5404a60d96b5" vid="6c19638a0652fcbc6c6ff8455c536445"></item> 4237 4237 <item defaultPriority="2" deflate="0" deflate_level="0" description="" frequency="mon" label="ua27" mipTable="Emon" modeling_realm="atmos" mtid="MIPtable::Emon" positive="" prov="HighResMIP [Amon_diag]" provNote="" rowIndex="17" shuffle="0" stid="f7ea1f3e-562c-11e6-a2a4-ac72891c3257" title="Eastward Wind" type="real" uid="8bafdd4a-4a5b-11e6-9cd2-ac72891c3257" vid="21db90c0a12448299f855fdab60930d4"></item> 4238 <item defaultPriority="1" deflate="" deflate_level="" description="" frequency="3hrPt" label="rsutcsaf" mipTable="E3hrPt" modeling_realm="aerosol" mtid="MIPtable::E3hrPt" positive="up" prov="RFMIP [aero_irf]" provNote="" rowIndex="10" shuffle="" stid="63c0cae8-15f2-11e7-87e0-5404a60d96b5" title=" toa outgoing clear-sky shortwave radiation" type="real" uid="916b6c92-267c-11e7-8933-ac72891c3257" vid="c9a70b4e-c5f0-11e6-ac20-5404a60d96b5"></item>4238 <item defaultPriority="1" deflate="" deflate_level="" description="" frequency="3hrPt" label="rsutcsaf" mipTable="E3hrPt" modeling_realm="aerosol" mtid="MIPtable::E3hrPt" positive="up" prov="RFMIP [aero_irf]" provNote="" rowIndex="10" shuffle="" stid="63c0cae8-15f2-11e7-87e0-5404a60d96b5" title="TOA Outgoing Clear-Sky, Aerosol-Free Shortwave Radiation" type="real" uid="916b6c92-267c-11e7-8933-ac72891c3257" vid="c9a70b4e-c5f0-11e6-ac20-5404a60d96b5"></item> 4239 4239 <item defaultPriority="1" deflate="" deflate_level="" description="computed as the water flux into the ocean divided by the area of the ocean portion of the grid cell. This is the sum of the next two variables in this table." frequency="mon" label="wfo" mipTable="Omon" mipTableSection="Omon_oth" modeling_realm="ocean" mtid="MIPtable::Omon" positive="" processing="net flux of water into sea water, including any flux correction. Report on native horizontal grid as well as mapped onto sphere." prov="Omon ((isd.003))" provNote="Omon_oth" rowIndex="68" shuffle="" stid="e9f9f6ca-c1ce-11e6-8067-ac72891c3257" subGroup="Omon_oth" title="Water Flux into Sea Water" type="real" uid="baa63578-e5dd-11e5-8482-ac72891c3257" vid="c3805ef555348a5f525cf09ccb254af4"></item> 4240 4240 <item defaultPriority="1" deflate="" deflate_level="" description="" frequency="mon" label="od550ss" mipTable="AERmon" mipTableSection="AERmon-oth" modeling_realm="aerosol" mtid="MIPtable::AERmon" positive="" prov="AERmon ((isd.003))" provNote="AERmon-oth" rowIndex="-1" shuffle="" stid="dabd02ac-16f4-11e8-b44a-a44cc8186c64" title="sea salt aod@550nm" type="real" uid="19bec380-81b1-11e6-92de-ac72891c3257" vid="a4105b51d498d46985677801436e7649"></item> … … 4275 4275 <item defaultPriority="1" deflate="0" deflate_level="0" description="N2O volume mixing ratio" frequency="3hrPt" label="n2o" mipTable="E3hrPt" modeling_realm="atmos" mtid="MIPtable::E3hrPt" positive="" prov="RFMIP [aero_irf]" provNote="" rowIndex="34" shuffle="0" stid="f7dcede6-562c-11e6-a2a4-ac72891c3257" title="N2O volume mixing ratio" type="real" uid="7b307e08-a220-11e6-a33f-ac72891c3257" vid="942125e5a461fef57b1477b9a2bd5fa0"></item> 4276 4276 <item defaultPriority="1" deflate="" deflate_level="" description="PARASOL Reflectance" frequency="day" label="parasolRefl" mipTable="Eday" modeling_realm="atmos" mtid="MIPtable::Eday" positive="" prov="CFMIP [CFdayExtra]" provNote="" rowIndex="4" shuffle="" stid="e9fa9724-c1ce-11e6-8067-ac72891c3257" title="PARASOL Reflectance" type="real" uid="8b8a85cc-4a5b-11e6-9cd2-ac72891c3257" vid="a06b8e83250b870d9f39dc1f6534efcb"></item> 4277 <item defaultPriority="1" deflate="" deflate_level="" description="Flux corresponding to rsutcs resulting fom aerosol-free call to radiation" frequency="mon" label="rsutcsaf" mipTable="AERmon" mipTableSection="AERmon-oth" modeling_realm="aerosol" mtid="MIPtable::AERmon" positive="up" prov="AERmon ((isd.003))" provNote="AERmon-oth" rowIndex="-1" shuffle="" stid="f7dcac96-562c-11e6-a2a4-ac72891c3257" title=" toa outgoing clear-sky shortwave radiation" type="real" uid="8feac232-267c-11e7-8933-ac72891c3257" vid="c9a70b4e-c5f0-11e6-ac20-5404a60d96b5"></item>4277 <item defaultPriority="1" deflate="" deflate_level="" description="Flux corresponding to rsutcs resulting fom aerosol-free call to radiation" frequency="mon" label="rsutcsaf" mipTable="AERmon" mipTableSection="AERmon-oth" modeling_realm="aerosol" mtid="MIPtable::AERmon" positive="up" prov="AERmon ((isd.003))" provNote="AERmon-oth" rowIndex="-1" shuffle="" stid="f7dcac96-562c-11e6-a2a4-ac72891c3257" title="TOA Outgoing Clear-Sky, Aerosol-Free Shortwave Radiation" type="real" uid="8feac232-267c-11e7-8933-ac72891c3257" vid="c9a70b4e-c5f0-11e6-ac20-5404a60d96b5"></item> 4278 4278 <item defaultPriority="3" deflate="" deflate_level="" description="" frequency="mon" label="limirrmisc" mipTable="Omon" mipTableSection="Omon_oth" modeling_realm="ocnBgChem" mtid="MIPtable::Omon" positive="" prov="Omon ((isd.003))" provNote="Omon_oth" rowIndex="121" shuffle="" stid="e9f9f6ca-c1ce-11e6-8067-ac72891c3257" subGroup="Omon_oth" title="Irradiance Limitation of Other Phytoplankton" type="real" uid="baa03826-e5dd-11e5-8482-ac72891c3257" vid="883fe8c76f1bd133e9075182240b1ca0"></item> 4279 4279 <item defaultPriority="3" deflate="" deflate_level="" description="Square of temperature of liquid ocean, averaged over the day." frequency="day" label="tossq" mipTable="Oday" modeling_realm="ocean" mtid="MIPtable::Oday" positive="" processing="Report on the ocean horizontal native grid." prov="Oday ((isd.003))" provNote="" rowIndex="2" shuffle="" stid="e9f9f6ca-c1ce-11e6-8067-ac72891c3257" title="Square of Sea Surface Temperature" type="real" uid="baa71c7c-e5dd-11e5-8482-ac72891c3257" vid="d1b497a4f7f4cb666757ec97d152079e"></item> … … 5331 5331 <item defaultPriority="1" deflate="0" deflate_level="0" description="" frequency="mon" label="necbLut" mipTable="Emon" modeling_realm="land" mtid="MIPtable::Emon" positive="down" prov="LUMIP [Lmon_Lut]" provNote="" rowIndex="9" shuffle="0" stid="e9fa6830-c1ce-11e6-8067-ac72891c3257" title="net rate of C accumulation (or loss) on land use tile" type="real" uid="d22da542-4a9f-11e6-b84e-ac72891c3257" vid="590ed0a8-9e49-11e5-803c-0d0b866b59f3"></item> 5332 5332 <item defaultPriority="2" deflate="0" deflate_level="0" description="" frequency="mon" label="c13Land" mipTable="Emon" modeling_realm="land" mtid="MIPtable::Emon" positive="" prov="C4MIP [C_Hist]" provNote="" rowIndex="11" shuffle="0" stid="f7de23aa-562c-11e6-a2a4-ac72891c3257" title="Mass of 13C in all terrestrial carbon pools" type="real" uid="8b7f725e-4a5b-11e6-9cd2-ac72891c3257" vid="590f49fc-9e49-11e5-803c-0d0b866b59f3"></item> 5333 <item defaultPriority="1" deflate="" deflate_level="" description="Flux corresponding to rsut resulting fom aerosol-free call to radiation" frequency="mon" label="rsutaf" mipTable="AERmon" mipTableSection="AERmon-oth" modeling_realm="aerosol" mtid="MIPtable::AERmon" positive="up" prov="AERmon ((isd.003))" provNote="AERmon-oth" rowIndex="-1" shuffle="" stid="f7dcac96-562c-11e6-a2a4-ac72891c3257" title=" toa outgoing shortwave radiation" type="real" uid="8feb097c-267c-11e7-8933-ac72891c3257" vid="c9a56fd2-c5f0-11e6-ac20-5404a60d96b5"></item>5333 <item defaultPriority="1" deflate="" deflate_level="" description="Flux corresponding to rsut resulting fom aerosol-free call to radiation" frequency="mon" label="rsutaf" mipTable="AERmon" mipTableSection="AERmon-oth" modeling_realm="aerosol" mtid="MIPtable::AERmon" positive="up" prov="AERmon ((isd.003))" provNote="AERmon-oth" rowIndex="-1" shuffle="" stid="f7dcac96-562c-11e6-a2a4-ac72891c3257" title="TOA Outgoing Aerosol-Free Shortwave Radiation" type="real" uid="8feb097c-267c-11e7-8933-ac72891c3257" vid="c9a56fd2-c5f0-11e6-ac20-5404a60d96b5"></item> 5334 5334 <item defaultPriority="1" deflate="0" deflate_level="0" description="mass_fraction_of_snowfall_onto_snow" frequency="day" label="prsnsn" mipTable="Eday" modeling_realm="atmos" mtid="MIPtable::Eday" positive="" prov="LS3MIP [LWday]" provNote="" rowIndex="48" shuffle="0" stid="f7de23aa-562c-11e6-a2a4-ac72891c3257" title="Fraction of snowfall on snow." type="real" uid="d228c2ca-4a9f-11e6-b84e-ac72891c3257" vid="5917ed1e-9e49-11e5-803c-0d0b866b59f3"></item> 5335 5335 <item defaultPriority="1" deflate="" deflate_level="" description="Accumulated stomatal ozone flux over the threshold of 0 mol m-2 s-1; Computation: Time Integral of (hourly above canopy ozone concentration * stomatal conductance * Rc/(Rb+Rc) )" frequency="mon" label="pod0" mipTable="AERmon" mipTableSection="AERmon-oth" modeling_realm="aerosol" mtid="MIPtable::AERmon" positive="" prov="AERmon ((isd.003))" provNote="AERmon-oth" rowIndex="-1" shuffle="" stid="f7dcac96-562c-11e6-a2a4-ac72891c3257" title="Phytotoxic ozone dose" type="real" uid="01d364ca-c792-11e6-aa58-5404a60d96b5" vid="c9a5b6b8-c5f0-11e6-ac20-5404a60d96b5"></item> … … 6972 6972 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590de58a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="vertical_integral_eastward_wind_by_total_water"></item> 6973 6973 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93fa4e74-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f32de7c0-26b8-11e7-8344-ac72891c3257"></item> 6974 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="41467ee6-4f40-11e6-a814-ac72891c3257" title="__unset__" uid="land_ice_mass"></item>6975 6974 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f1324-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="liquid_water_evaporation_flux_from_soil"></item> 6976 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590ded6e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="nitrogen_mass_flux_into_soil_from_litter"></item>6977 6975 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913462e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="temperature_flux_due_to_rainfall_expressed_as_heat_flux_onto_snow_and_ice"></item> 6978 6976 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="11" title="__unset__" uid="f2feca08-26b8-11e7-8344-ac72891c3257"></item> 6979 6977 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f9d872-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f362c788-26b8-11e7-8344-ac72891c3257"></item> 6980 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591397be-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="leaf_nitrogen_content"></item>6981 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59132b58-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="net_atmos_to_land_C14_flux"></item>6982 6978 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917c046-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_sedimentation"></item> 6983 6979 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591444ca-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="vertical_integral_northward_wind_by_total_water"></item> … … 6986 6982 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f81000-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f325f826-26b8-11e7-8344-ac72891c3257"></item> 6987 6983 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e3260-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="mass_fraction_of_rainfall_onto_snow"></item> 6988 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590ec6bc-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_specific_humidity_due_to_boundary_layer_mixing"></item>6989 6984 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917acf0-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="vertical_integral_eastward_wind_by_dry_static_energy"></item> 6990 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="84f0b2cc-acb7-11e6-b5ee-ac72891c3257" title="__unset__" uid="autotrophic_respiration"></item>6991 6985 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e536c-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="canopy_snow_amount"></item> 6992 6986 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914517c-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="plant_respiration_c14_flux"></item> 6993 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5912b4e8-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="temperature_tendency_due_to_dissipation_orographic_gravity_wave_drag"></item>6994 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59143570-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_air_temperature_due_to_boundary_layer_mixing"></item>6995 6987 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590dfdc2-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="snow_thickness_over_categories"></item> 6996 6988 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="3f3074ee-b89b-11e6-be04-ac72891c3257" title="__unset__" uid="tendency_of_atmospheric_mass_content_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_wood_and_agricultural_product_pool"></item> … … 6998 6990 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e05c4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="water_flux_to_downstream"></item> 6999 6991 <item class="" description="Missing links detected and marked for fixing" label="unset" prov="audit.py" tattr="sn" title="__unset__" uid="surface_instantaneous_longwave_forcing_due_to_dust_in_clearsky"></item> 7000 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917aa7a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="total_land_carbon"></item>7001 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d2ed8-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="biological_nitrogen_fixation"></item>7002 6992 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f9fe92-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f355599a-26b8-11e7-8344-ac72891c3257"></item> 7003 6993 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591720a0-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="strat_aerosol_optical_depth"></item> … … 7006 6996 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="var.sn" techNote="2" title="__unset__" uid="land_ice_basal_temperature"></item> 7007 6997 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917f21e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="nitrogen_content_of_products_of_anthropogenic_land_use_change"></item> 7008 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917cc94-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="other_vegegtation_components_nitrogen_content"></item>7009 6998 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e034e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="water_flux_from_upstream"></item> 7010 6999 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59170f66-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="change_over_time_in_canopy_water_amount"></item> … … 7013 7002 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93fa7d04-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f343fe5c-26b8-11e7-8344-ac72891c3257"></item> 7014 7003 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f96734-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f3927bd6-26b8-11e7-8344-ac72891c3257"></item> 7015 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f097e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_net_nox_flux"></item>7016 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="84f0bbbe-acb7-11e6-b5ee-ac72891c3257" title="__unset__" uid="net_primary_production_allocated_to_other"></item>7017 7004 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="var.sn" techNote="2" title="__unset__" uid="surface_downwelling_shortwave_flux_in_air_assuming_clean_clear_sky"></item> 7018 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913de9a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="deforested_biomass_into_product_pool_due_to_anthorpogenic_land_use_change"></item>7019 7005 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f8a560-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f35ec41c-26b8-11e7-8344-ac72891c3257"></item> 7020 7006 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914d462-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_nitrogen_lost_to_atmosphere"></item> 7021 7007 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="84f0ea44-acb7-11e6-b5ee-ac72891c3257" title="__unset__" uid="nitrogen_flux_into_atmos_due_to_direct_human_disturbance"></item> 7022 7008 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59133288-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="sea_ice_thickness_over_categories"></item> 7023 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590dcb0e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_air_temperature_due_to_numerical_diffusion"></item>7024 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f2bfc-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="autotrophic_respiration_from_leaves"></item>7025 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59137716-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="meridional_streamfunction_transformed_eulerian_mean"></item>7026 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913e3e0-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="nitrogen_mass_flux_to_product_pool_due_to_anthorpogenic_activity"></item>7027 7009 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="c9a5b6b8-c5f0-11e6-ac20-5404a60d96b5" title="__unset__" uid="pending_CF_name"></item> 7028 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="71c982aa-b8ab-11e6-97ab-ac72891c3257" title="__unset__" uid="surface_litter_nitrogen_content"></item>7029 7010 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e736a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="canopy_albedo"></item> 7030 7011 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59148822-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="change_over_time_in_groundwater"></item> 7031 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59174d14-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_nitrogen_lost_to_atmosphere_not_due_to_fire"></item>7032 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5912b196-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="litter_wood_debris_carbon_content"></item>7033 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="4146943a-4f40-11e6-a814-ac72891c3257" title="__unset__" uid="tendency_of_land_ice_mass_due_to_surface_mass_balance"></item>7034 7012 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59149c7c-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_sea_ice_amount_due_to_freezing_in_open_water"></item> 7035 7013 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="3f3051c6-b89b-11e6-be04-ac72891c3257" title="__unset__" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_direct_to_atmosphere_due_to_anthropogenic_land_use_land_cover_change"></item> 7036 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591491e6-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="autotrophic_respiration_from_roots"></item>7037 7014 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="23ecf19e478a3ed9026b011e1e1fed02" title="__unset__" uid="lightning_flash_rate"></item> 7038 7015 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59152958-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="liquid_water_evaporation_flux_from_surface_snow"></item> 7039 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59130e98-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="soil_liquid_water_content"></item>7040 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59128f0e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="stem_nitrogen_content"></item>7041 7016 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914eb78-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="thickness_of_ridged_sea_ice"></item> 7042 7017 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="2" title="__unset__" uid="f2fed912-26b8-11e7-8344-ac72891c3257"></item> 7043 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="84f09af8-acb7-11e6-b5ee-ac72891c3257" title="__unset__" uid="fertiliser_of_nitrogen_onto_land"></item>7044 7018 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f0bf4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="liquid_water_evaporation_flux_from_canopy"></item> 7045 7019 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590ea16e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="maximum_shear_stress"></item> 7046 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590df00c-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="sea_water_additional_potential_temperature"></item>7047 7020 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59176128-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="vegetation_nitrogen_content"></item> 7048 7021 <item class="Supplement" description="Latitude of 121 sites requested by CFMIP" label="sitesLatitute" prov="" tattr="" techNote="-20.0 -20.0 -20.0 -20.0 -20.0 -20.0 -20.0 -18.5 -17.0 -15.5 -14.0 -12.5 -11.0 -9.5 -8.0 38.1 35.0 32.0 29.0 26.0 23.0 20.0 17.0 14.0 11.0 8.0 5.0 2.0 -1.0 -1.0 -0.5 -2.0 -2.1 -4.75 -8.0 -12.4 36.4 71.3 -11.0 52.0 -42.0 15.0 30.0 50.0 8.0 23.5 39.0 48.5 32.5 62.3 31.4 7.5 52.2 67.4 54.0 82.5 -28.6 41.0 35.0 29.0 12.0 15.0 18.0 33.0 31.5 -2.5 -2.5 -2.5 -2.5 -2.5 18.0 1.0 13.0 -7.97 37.0 64.1 57.15 -62.2 78.93 13.6 -49.2 -54.6 27.0 8.7 12.0 12.0 10.0 8.5 51.14 48.71 -20.1 -58.5 47.67 -43.95 -7.3 -40.35 38.2 -17.5 -56.0 -42.7 24.3 -29.03 50.0 65.78 0.0 3.5 6.5 9.5 11.5 13.5 15.5 18.0 20.5 23.0 15.0 76.0 71.6 88.0 -75.1 13.16 -16.0" tid="dim:site" title="Latitude of CFMIP sites" uid="c8ef65e2-5fb6-11e7-93bd-ac72891c3257"></item> … … 7050 7023 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f9b8e2-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f33ac044-26b8-11e7-8344-ac72891c3257"></item> 7051 7024 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="0353bea4-dca0-11e5-81c9-5404a60d96b5" title="__unset__" uid="freshwater_flux_from_ice_surface"></item> 7052 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f3674-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="heterotrophic_respiration_carbon_flux_from_soil"></item>7053 7025 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f0442-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="snow_area_fraction_over_categories"></item> 7054 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590ea93e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_downward_eastward_stress_due_to_planetary_boundary_layer"></item>7055 7026 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591449ca-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_snow_and_ice_sublimation_heat_flux"></item> 7056 7027 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d24c4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="total_water_storage"></item> 7057 7028 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93fa2ed0-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f3429a26-26b8-11e7-8344-ac72891c3257"></item> 7058 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59136654-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="heterotrophic_respiration_carbon_flux_from_litter"></item>7059 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="71c9768e-b8ab-11e6-97ab-ac72891c3257" title="__unset__" uid="subsurface_litter_nitrogen_content"></item>7060 7029 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f0e56-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_evapotranspiration"></item> 7061 7030 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="11" title="__unset__" uid="f2fed188-26b8-11e7-8344-ac72891c3257"></item> 7062 7031 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f98bf6-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f390737c-26b8-11e7-8344-ac72891c3257"></item> 7063 7032 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f2436-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="heterotrophic_respiration_c14_flux"></item> 7064 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913e156-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_nitrogen_lost_to_atmosphere_due_to_fire"></item>7065 7033 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="84f09f30-acb7-11e6-b5ee-ac72891c3257" title="__unset__" uid="net_primary_production_allocated_to_stem"></item> 7066 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59151c42-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="nitrogen_mass_flux_into_ocean_from_rivers"></item>7067 7034 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f87f18-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f39cda18-26b8-11e7-8344-ac72891c3257"></item> 7068 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f019a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_ice_mass_not_displacing_sea_water"></item>7069 7035 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917ca14-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="liquid_water_evaporation_flux_from_open_water"></item> 7070 7036 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917ed1e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="mass_fraction_of_snowfall_onto_snow"></item> 7071 7037 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="7309b2ce-7a68-11e6-8db2-ac72891c3257" title="__unset__" uid="snow_mass_transport_across_line"></item> 7072 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59171df8-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="stem_carbon_content"></item>7073 7038 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914e34e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="shortwave_flux_due_to_volcanic_aerosols_at_TOA_under_clear_sky"></item> 7074 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59142e0e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="total_land_nitrogen"></item>7075 7039 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="14" title="__unset__" uid="f2ff0310-26b8-11e7-8344-ac72891c3257"></item> 7076 7040 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f85b64-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f36e3c44-26b8-11e7-8344-ac72891c3257"></item> … … 7078 7042 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590dda36-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="net_nitrogen_mineralisation"></item> 7079 7043 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590dd13a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="plant_respiration_c13_flux"></item> 7080 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59149f2e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_anthrogpogenic_emission"></item>7081 7044 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59131910-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_particles_due_to_total_deposition"></item> 7082 7045 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="2" title="__unset__" uid="f2feaba4-26b8-11e7-8344-ac72891c3257"></item> 7083 7046 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59138f8a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="heat_content_of_ocean_layer"></item> 7084 7047 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5912cf78-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_net_n2o_flux"></item> 7085 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591478be-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="land_nitrogen_lost"></item>7086 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914de26-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="litter_wood_debris_nitrogen_content"></item>7087 7048 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914d1ba-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="longwave__flux__due_to_volcanic_aerosols_at_the_surface"></item> 7088 7049 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e12ee-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="snow_and_ice_albedo"></item> … … 7094 7055 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="6" title="__unset__" uid="f2ff1dc8-26b8-11e7-8344-ac72891c3257"></item> 7095 7056 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590dfb2e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="fraction_of_ridged_sea_ice"></item> 7096 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913e8ea-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="temperature_tendency_due_to_dissipation_nonorographic_gravity_wave_drag"></item>7097 7057 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59147b48-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="vertical_integral_northward_wind_by_dry_static_energy"></item> 7098 7058 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="c9a77f2a-c5f0-11e6-ac20-5404a60d96b5" title="__unset__" uid="volume_lidar_backwards_scattering_coefficient_in_air_due_to_ambient_aerosol_particles"></item> 7099 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="3f30714c-b89b-11e6-be04-ac72891c3257" title="__unset__" uid="carbon_mass_flux_into_wood_and_agricultural_product_pools_due_to_anthropogenic_land_use_or_land_cover_change"></item>7100 7059 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="2" title="__unset__" uid="f2fedc6e-26b8-11e7-8344-ac72891c3257"></item> 7101 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5912d5ea-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="nitrogen_mass_flux_into_soil_from_vegetation_excluding_litter"></item>7102 7060 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59137fd6-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="photolysis_rate_of_ozone"></item> 7103 7061 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590de2ce-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_snow_sublimation_flux"></item> … … 7108 7066 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f1d10-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="change_over_time_in_surface_snow_and_ice_amount"></item> 7109 7067 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917f9c6-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="change_over_time_in_thermal_energy_content_of_surface"></item> 7110 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913bfe6-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="deposition_of_nitrogen_onto_land"></item>7111 7068 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d8fc2-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="depth_of_subsurface_melting"></item> 7112 7069 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="11" title="__unset__" uid="f2fecdd2-26b8-11e7-8344-ac72891c3257"></item> 7113 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f9ace-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="gross_primary_productivity_of_c13"></item>7114 7070 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="73097b4c-7a68-11e6-8db2-ac72891c3257" title="__unset__" uid="sea_ice_area_transport_across_line"></item> 7115 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59147ddc-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="wetland_fraction"></item>7116 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="11806b1e-f747-11e5-950e-5404a60d96b5" title="__unset__" uid="sea_water_redistributed_conservative_temperature"></item>7117 7071 <item class="" description="Missing links detected and marked for fixing" label="unset" prov="audit.py" tattr="sn" title="__unset__" uid="surface_instantaneous_longwave_forcing_due_to_dust"></item> 7118 7072 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f182e-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="change_over_time_in_surface_water_amount"></item> 7119 7073 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d70b4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="maximum_shear_of_sea_ice_velocity"></item> 7120 7074 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="01c8c41a-a0d8-11e6-bc63-ac72891c3257" title="__unset__" uid="nudging_increment_in_water_content_of_soil_layer"></item> 7121 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914af46-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="sea_water_redistributed_potential_temperature"></item>7122 7075 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="var.sn" techNote="2" title="__unset__" uid="surface_upwelling_shortwave_flux_in_air_assuming_clean_clear_sky"></item> 7123 7076 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d95d0-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_sea_ice_amount_due_to_thermodynamics"></item> … … 7128 7081 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="0abbdddc-a0d8-11e6-bc63-ac72891c3257" title="__unset__" uid="nudging_increment_in_surface_snow_and_ice_amount"></item> 7129 7082 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59137d56-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="photolysis_rate_of_molecular_oxygen"></item> 7130 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59136dfc-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="root_nitrogen_content"></item>7131 7083 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917cf46-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_clear_sky_surface_shortwave_flux_due_to_dust_ambient_aerosol_particles"></item> 7132 7084 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917a070-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="wetland_methane_emissions"></item> 7133 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f43f8-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="liquid_cloud_area_fraction_in_atmosphere_layer"></item>7134 7085 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d98b4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="sea_ice_area_fraction_over_categories"></item> 7135 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f5b72-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_downward_northward_stress_due_to_planetary_boundary_layer"></item>7136 7086 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590eaf60-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="surface_water_amount_assuming_no_snow"></item> 7137 7087 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590ecbda-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="conductive_heat_flux_at_sea_ice_surface"></item> 7138 7088 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="requestItem.esid" techNote="2" title="__unset__" uid="f2fec2e2-26b8-11e7-8344-ac72891c3257"></item> 7139 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5913ba00-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="litter_nitrogen_flux"></item>7140 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914b748-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="other_vegegtation_components_carbon_content"></item>7141 7089 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5917c654-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="plant_nitrogen_uptake"></item> 7142 7090 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590d64f2-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="shortwave_heating_rate_due_to_volcanic_aerosols"></item> 7143 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="d4eb6956-b00f-11e6-a1f0-ac72891c3257" title="__unset__" uid="square_of_sea_surface_salinity"></item>7144 7091 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="2b133ea2-1b42-11e6-a696-35cd2d8034df" title="__unset__" uid="tendency_of_atmosphere_of_mole_concentration_of_nitrous_oxide_due_to_chemical_destruction"></item> 7145 7092 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="5914567c-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="water_content_of_root_zone"></item> 7146 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="712473d6-c7b6-11e6-bb2a-ac72891c3257" title="__unset__" uid="CO2_3D_tracer"></item>7147 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f933a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="Carbon_flux_out_of_storage_product_pools_into_atmos"></item>7148 7093 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f91c8e-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f3293da6-26b8-11e7-8344-ac72891c3257"></item> 7149 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="59176d94-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="net_atmos_to_land_C13_flux"></item>7150 7094 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f541a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="sublimation_amount_assuming_no_snow"></item> 7151 7095 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="esid" tid="93f9424a-267c-11e7-8933-ac72891c3257" title="__unset__" uid="f39b06a2-26b8-11e7-8344-ac72891c3257"></item> 7152 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f95c4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="gross_primary_productivity_of_c14"></item>7153 7096 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f1f68-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="heterotrophic_respiration_c13_flux"></item> 7154 7097 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e70f4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="litter_nitrogen_content"></item> 7155 7098 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590f1586-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="longwave_flux_due_to_volcanic_aerosols_at_TOA_under_clear_sky"></item> 7156 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="84f1146a-acb7-11e6-b5ee-ac72891c3257" title="__unset__" uid="soil_carbon_turnover_rate_by_pool"></item>7157 7099 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="591357b8-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_sea_ice_amount_due_to_dynamics"></item> 7158 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590db236-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="autotrophic_respiration_from_stem"></item>7159 7100 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="__multiple__" techNote="2068" title="__unset__" uid="missing"></item> 7160 7101 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e8b2a-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="sea_ice_time_fraction"></item> 7161 7102 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590e5100-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="soil_nitrogen_content"></item> 7162 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="3f305b94-b89b-11e6-be04-ac72891c3257" title="__unset__" uid="surface_downward_water_flux_due_to_irrigation"></item>7163 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="15410a16-f746-11e5-950e-5404a60d96b5" title="__unset__" uid="sea_water_added_conservative_temperature"></item>7164 7103 <item class="missingLink" description="Missing links detected and marked for fixing" label="unset" prov="scanDreq.py:annotate" tattr="sn" tid="590ea5c4-9e49-11e5-803c-0d0b866b59f3" title="__unset__" uid="tendency_of_sea_ice_amount_due_to_lateral_melting"></item> 7165 7104 <item class="missingLink" 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uid="volume_spectral_asymmetry_factor_in_air_due_to_ambient_aerosol_particles"></item> 7109 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="masscontentofnitrogeninvegetationandlitterandsoilandforestryandagriculturalproducts" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: mass_content_of_nitrogen_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products" uid="mass_content_of_nitrogen_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products"></item> 7170 7110 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="tendencyofatmospheremoleconcentrationofoxduetochemicaldestruction" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: tendency_of_atmosphere_mole_concentration_of_ox_due_to_chemical_destruction" uid="tendency_of_atmosphere_mole_concentration_of_ox_due_to_chemical_destruction"></item> 7171 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prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: gross_primary_productivity_of_biomass_expressed_as_14C" uid="gross_primary_productivity_of_biomass_expressed_as_14C"></item> 7175 7119 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="upwardtransformedeulerianmeanairvelocity" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: upward_transformed_eulerian_mean_air_velocity" uid="upward_transformed_eulerian_mean_air_velocity"></item> 7176 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="snowamountexpressedasliquidwaterdepth" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: snow_amount_expressed_as_liquid_water_depth" uid="snow_amount_expressed_as_liquid_water_depth"></item>7177 7120 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicesaltcontent" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_salt_content" uid="sea_ice_salt_content"></item> 7178 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="magnitudeoflandicebasaldrag" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: magnitude_of_land_ice_basal_drag" uid="magnitude_of_land_ice_basal_drag"></item> 7179 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="atmospheremasscontentofconvectivecloudice" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: atmosphere_mass_content_of_convective_cloud_ice" uid="atmosphere_mass_content_of_convective_cloud_ice"></item> 7121 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfacedownwardnorthwardstressduetoboundarylayermixing" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_downward_northward_stress_due_to_boundary_layer_mixing" uid="surface_downward_northward_stress_due_to_boundary_layer_mixing"></item> 7180 7122 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="stratosphereopticalthicknessduetovolcanicaerosolparticles" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: stratosphere_optical_thickness_due_to_volcanic_aerosol_particles" uid="stratosphere_optical_thickness_due_to_volcanic_aerosol_particles"></item> 7181 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="shortwavefluxduetovolcanicambientaerosolparticlesatthesurface" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: shortwave__flux_due_to_volcanic_ambient_aerosol_particles_at_the_surface" uid="shortwave__flux_due_to_volcanic_ambient_aerosol_particles_at_the_surface"></item>7182 7123 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicespecificxforceduetocoriolisterm" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_specific_x_force_due_to_coriolis_term" uid="sea_ice_specific_x_force_due_to_coriolis_term"></item> 7183 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="numberconcentrationofconvectivecloudliquidwaterparticleatconvectiveliquidwatercloudtop" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: number_concentration_of_convective_cloud_liquid_water_particle_at_convective_liquid_water_cloud_top" uid="number_concentration_of_convective_cloud_liquid_water_particle_at_convective_liquid_water_cloud_top"></item>7184 7124 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicespecificyforceduetointernalforces" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_specific_y_force_due_to_internal_forces" uid="sea_ice_specific_y_force_due_to_internal_forces"></item> 7185 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfaceupwardmassfluxofmethaneduetoemissionfromwetlandbiologicalproduction" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_production" uid="surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_production"></item>7186 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="tendencyofairtemperatureduetostratiformcloudandprecipitation" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: tendency_of_air_temperature_due_to_stratiform_cloud_and_precipitation" uid="tendency_of_air_temperature_due_to_stratiform_cloud_and_precipitation"></item>7187 7125 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="tendencyofatmospheremoleconcentrationofoxduetochemicalandphotolyticproduction" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: tendency_of_atmosphere_mole_concentration_of_ox_due_to_chemical_and_photolytic_production" uid="tendency_of_atmosphere_mole_concentration_of_ox_due_to_chemical_and_photolytic_production"></item> 7188 7126 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="tendencyofsurfacesnowamountduetodrifting" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: tendency_of_surface_snow_amount_due_to_drifting" uid="tendency_of_surface_snow_amount_due_to_drifting"></item> 7189 7127 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="downwellingshortwavefluxinairassumingcleanclearsky" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: downwelling_shortwave_flux_in_air_assuming_clean_clear_sky" uid="downwelling_shortwave_flux_in_air_assuming_clean_clear_sky"></item> 7190 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="numberconcentrationofstratiformcloudliquidwaterparticleatstratiformliquidwatercloudtop" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: number_concentration_of_stratiform_cloud_liquid_water_particle_at_stratiform_liquid_water_cloud_top" uid="number_concentration_of_stratiform_cloud_liquid_water_particle_at_stratiform_liquid_water_cloud_top"></item> 7191 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="tendencyofeastwardwindduetoadvectionbythenorthwardtransformedeulerianmeanairvelocity" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: tendency_of_eastward_wind_due_to_advection_by_the_northward_transformed_eulerian_mean_air_velocity" uid="tendency_of_eastward_wind_due_to_advection_by_the_northward_transformed_eulerian_mean_air_velocity"></item> 7128 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="atmospheretransformedeulerianmeanmeridionaloverturningmassstreamfunction" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: atmosphere_transformed_eulerian_mean_meridional_overturning_mass_streamfunction" uid="atmosphere_transformed_eulerian_mean_meridional_overturning_mass_streamfunction"></item> 7192 7129 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfacespectralhemisphericalreflectanceofdiffuseshortwaveradiation" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_spectral_hemispherical_reflectance_of_diffuse_shortwave_radiation" uid="surface_spectral_hemispherical_reflectance_of_diffuse_shortwave_radiation"></item> 7193 7130 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="waterfluxintoseawaterfromseaice" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: water_flux_into_sea_water_from_sea_ice" uid="water_flux_into_sea_water_from_sea_ice"></item> 7194 7131 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="stratosphereopticalthicknessduetoambientsuplhateaerosolparticles" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: stratosphere_optical_thickness_due_to_ambient_suplhate_aerosol_particles" uid="stratosphere_optical_thickness_due_to_ambient_suplhate_aerosol_particles"></item> 7195 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="tendencyofspecifichumidityduetostratiformcloudandprecipitation" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: tendency_of_specific_humidity_due_to_stratiform_cloud_and_precipitation" uid="tendency_of_specific_humidity_due_to_stratiform_cloud_and_precipitation"></item>7196 7132 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicespecificyforceduetoseasurfacetilt" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_specific_y_force_due_to_sea_surface_tilt" uid="sea_ice_specific_y_force_due_to_sea_surface_tilt"></item> 7197 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="effectiveradiusofstratiformcloudliquidwaterparticleatstratiformliquidwatercloudtop" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: effective_radius_of_stratiform_cloud_liquid_water_particle_at_stratiform_liquid_water_cloud_top" uid="effective_radius_of_stratiform_cloud_liquid_water_particle_at_stratiform_liquid_water_cloud_top"></item> 7133 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfacenetdownwardmassfluxofcarbondioxideexpressedas14Cduetoalllandprocesses" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_14C_due_to_all_land_processes" uid="surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_14C_due_to_all_land_processes"></item> 7134 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfacenetdownwardmassfluxofcarbondioxideexpressedas13Cduetoalllandprocesses" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_13C_due_to_all_land_processes" uid="surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_13C_due_to_all_land_processes"></item> 7198 7135 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicemeltpondthickness" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_melt_pond_thickness" uid="sea_ice_melt_pond_thickness"></item> 7199 7136 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="rootmasscontent" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: root_mass_content" uid="root_mass_content"></item> 7200 7137 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfacedragcoefficientformomentuminseawater" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_drag_coefficient_for_momentum_in_sea_water" uid="surface_drag_coefficient_for_momentum_in_sea_water"></item> 7201 7138 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicespecificxforceduetointernalforces" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_specific_x_force_due_to_internal_forces" uid="sea_ice_specific_x_force_due_to_internal_forces"></item> 7202 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="effectiveradiusofconvectivecloudliquidwaterparticleatconvectiveliquidwatercloudtop" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: effective_radius_of_convective_cloud_liquid_water_particle_at_convective_liquid_water_cloud_top" uid="effective_radius_of_convective_cloud_liquid_water_particle_at_convective_liquid_water_cloud_top"></item>7203 7139 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicespecificyforceduetocoriolisterm" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_specific_y_force_due_to_coriolis_term" uid="sea_ice_specific_y_force_due_to_coriolis_term"></item> 7140 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="shortwavefluxduetovolcanicambientaerosolparticlesatthesurface" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: shortwave_flux_due_to_volcanic_ambient_aerosol_particles_at_the_surface" uid="shortwave_flux_due_to_volcanic_ambient_aerosol_particles_at_the_surface"></item> 7204 7141 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="downwellingshortwavefluxinseawateratseaicebase" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: downwelling_shortwave_flux_in_sea_water_at_sea_ice_base" uid="downwelling_shortwave_flux_in_sea_water_at_sea_ice_base"></item> 7142 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="surfacedownwardeastwardstressduetoboundarylayermixing" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: surface_downward_eastward_stress_due_to_boundary_layer_mixing" uid="surface_downward_eastward_stress_due_to_boundary_layer_mixing"></item> 7205 7143 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicebasaltemperature" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_basal_temperature" uid="sea_ice_basal_temperature"></item> 7206 7144 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="seaicebasalnetdownwardsensibleheatflux" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: sea_ice_basal_net_downward_sensible_heat_flux" uid="sea_ice_basal_net_downward_sensible_heat_flux"></item> 7207 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="massfluxofcarbonintoforestryandagriculturalproductsduetocropharvesting" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: mass_flux_of_carbon_into_forestry_and_agricultural_products_due_to_crop_harvesting" uid="mass_flux_of_carbon_into_forestry_and_agricultural_products_due_to_crop_harvesting"></item> 7145 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="grossprimaryproductivityofbiomassexpressedas13C" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: gross_primary_productivity_of_biomass_expressed_as_13C" uid="gross_primary_productivity_of_biomass_expressed_as_13C"></item> 7146 <item class="missingLink" description="Missing standard name, record generated by scanDreq2.py" label="masscontentofcarboninvegetationandlitterandsoilandforestryandagriculturalproducts" prov="Auto-generated by scanDreq2.py" tattr="sn" title="Missing standard name: mass_content_of_carbon_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products" uid="mass_content_of_carbon_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products"></item> 7208 7147 </remarks> 7209 7148 <experiment id="exp" label="experiment" title="1.5 Experiments" uid="SECTION:experiment" useClass="vocab"> … … 13051 12990 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Bk" means the element "berkelium" and "250Bk" is the isotope "berkelium-250" with a half-life of 1.34e-01 days." label="SurfaceRadioactivityContentOf250Bk" title="Surface Radioactivity Content of 250Bk" uid="surface_radioactivity_content_of_250Bk" units="Bq m-2"></item> 13052 12991 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Y" means the element "yttrium" and "90Y" is the isotope "yttrium-90" with a half-life of 2.67e+00 days." label="SurfaceRadioactivityContentOf90Y" title="Surface Radioactivity Content of 90Y" uid="surface_radioactivity_content_of_90Y" units="Bq m-2"></item> 12992 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Heterotrophic respiration is respiration by heterotrophs ("consumers"), which are organisms (including animals and decomposers) that consume other organisms or dead organic material, rather than synthesising organic material from inorganic precursors using energy from the environment (especially sunlight) as autotrophs ("producers") do. Heterotrophic respiration goes on both above and within the soil." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToHeterotrophicRespiration" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Heterotrophic Respiration" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_heterotrophic_respiration" units="kg m-2 s-1"></item> 13053 12993 <item description="toa_outgoing_radiance_per_unit_wavenumber_stdev_within_collocation_scene is the standard deviation of observations of the quantity with standard name toa_outgoing_radiance_per_unit_wavenumber from a sensor's adjacent field-of-views within a collocation scene. "toa" means top of atmosphere. The TOA outgoing radiance is the upwelling radiance, i.e., toward outer space. Radiance is the radiative flux in a particular direction, per unit of solid angle. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The "collocation scene" is a grouping of a sensor's adjacent field-of-views centered on a collocation target. The size of the collocation scene is typically about twice that of the collocation target. The "collocation target" is an area on the Earth's surface at which observations from at least two sensors are collected. Its size is defined by the sensor with the largest field-of-view footprint. Two events are deemed to be collocated based on some set of spatial, temporal, and viewing geometry criteria." label="ToaOutgoingRadiancePerUnitWavenumberStdevWithinCollocationScene" title="Toa Outgoing Radiance Per Unit Wavenumber Stdev Within Collocation Scene" uid="toa_outgoing_radiance_per_unit_wavenumber_stdev_within_collocation_scene" units="W m-2 sr-1 (m-1)-1"></item> 12994 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. Soil carbon is returned to the atmosphere as the organic matter decays. The decay process takes varying amounts of time depending on the composition of the organic matter, the temperature and the availability of moisture. A carbon "soil pool" means the carbon contained in organic matter which has a characteristic period over which it decays and releases carbon into the atmosphere. "Fast soil pool" refers to the decay of organic matter in soil with a characteristic period of less than ten years under reference climate conditions of a temperature of 20 degrees Celsius and no water limitations." label="FastSoilPoolMassContentOfCarbon" title="Fast Soil Pool Mass Content of Carbon" uid="fast_soil_pool_mass_content_of_carbon" units="kg m-2"></item> 13054 12995 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Th" means the element "thorium" and "230Th" is the isotope "thorium-230" with a half-life of 2.92e+07 days." label="SurfaceRadioactivityContentOf230Th" title="Surface Radioactivity Content of 230Th" uid="surface_radioactivity_content_of_230Th" units="Bq m-2"></item> 13055 12996 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Np" means the element "neptunium" and "236Np" is the isotope "neptunium-236" with a half-life of 9.17e-01 days." label="SurfaceRadioactivityContentOf236Np" title="Surface Radioactivity Content of 236Np" uid="surface_radioactivity_content_of_236Np" units="Bq m-2"></item> … … 13119 13060 <item description="alias::moles_of_halon1202_in_atmosphere" label="AtmosphereMolesOfHalon1202" title="Atmosphere Moles of Halon1202 [alias]" uid="moles_of_halon1202_in_atmosphere" units="mol"></item> 13120 13061 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. Downwelling radiation is radiation from above. It does not mean "net downward". Photon radiance is the photon flux in a particular direction, per unit of solid angle. The direction from which it is coming must be specified, for instance with a coordinate of zenith_angle. If the radiation does not depend on direction, a standard name of isotropic radiance should be chosen instead. A photon flux is specified in terms of numbers of photons expressed in moles." label="SurfaceDownwellingPhotonRadianceInSeaWater" title="Surface Downwelling Photon Radiance in Sea Water" uid="surface_downwelling_photon_radiance_in_sea_water" units="mol m-2 s-1 sr-1"></item> 13062 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Heterotrophic respiration is respiration by heterotrophs ("consumers"), which are organisms (including animals and decomposers) that consume other organisms or dead organic material, rather than synthesising organic material from inorganic precursors using energy from the environment (especially sunlight) as autotrophs ("producers") do. Heterotrophic respiration goes on within both the soil and litter pools." label="SurfaceUpwardMassFluxOfCarbonDueToHeterotrophicRespirationInSoil" title="Surface Upward Mass Flux of Carbon due to Heterotrophic Respiration in Soil" uid="surface_upward_mass_flux_of_carbon_due_to_heterotrophic_respiration_in_soil" units="kg m-2 s-1"></item> 13121 13063 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "tendency_of_X" means derivative of X with respect to time. Acetone is an organic molecule with the chemical formula CH3CH3CO. The IUPAC name for acetone is propan-2-one. Acetone is a member of the group of organic compounds known as ketones. There are standard names for the ketone group as well as for some of the individual species." label="TendencyOfAtmosphereMassContentOfAcetoneDueToEmission" title="Tendency of Atmosphere Mass Content of Acetone due to Emission" uid="tendency_of_atmosphere_mass_content_of_acetone_due_to_emission" units="kg m-2 s-1"></item> 13122 13064 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for formaldehyde is CH2O. The IUPAC name for formaldehyde is methanal. The "waste treatment and disposal" sector comprises solid waste disposal on land, wastewater handling, waste incineration and other waste disposal. "Waste treatment and disposal" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 6A, 6B, 6C and 6D as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfFormaldehydeDueToEmissionFromWasteTreatmentAndDisposal" title="Tendency of Atmosphere Mass Content of Formaldehyde due to Emission from Waste Treatment And Disposal" uid="tendency_of_atmosphere_mass_content_of_formaldehyde_due_to_emission_from_waste_treatment_and_disposal" units="kg m-2 s-1"></item> … … 13148 13090 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for dimethyl sulfide is (CH3)2S. Dimethyl sulfide is sometimes referred to as DMS." label="MassConcentrationOfDimethylSulfideInAir" title="Mass Concentration of Dimethyl Sulfide in Air" uid="mass_concentration_of_dimethyl_sulfide_in_air" units="kg m-3"></item> 13149 13091 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "tendency_of_X" means derivative of X with respect to time. Alkanes are saturated hydrocarbons, i.e. they do not contain any chemical double bonds. "Hydrocarbon" means a compound containing hydrogen and carbon. Alkanes contain only hydrogen and carbon combined in the general proportions C(n)H(2n+2); "alkanes" is the term used in standard names to describe the group of chemical species having this common structure that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names exist for some individual alkane species, e.g., methane and ethane." label="TendencyOfAtmosphereMassContentOfAlkanesDueToEmission" title="Tendency of Atmosphere Mass Content of Alkanes due to Emission" uid="tendency_of_atmosphere_mass_content_of_alkanes_due_to_emission" units="kg m-2 s-1"></item> 13150 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for methane is CH4. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species." label="AtmosphereMolesOfMethane" title="Atmosphere Moles of Methane" uid="atmosphere_moles_of_methane" units="mol"></item>13151 <item description="The optical thickness is the integral along the path of radiation of a volume scattering/absorption/attenuation coefficient. The radiative flux is reduced by a factor exp(-"optical_thickness") on traversing the path. The atmosphere optical thickness applies to radiation passing through the entire atmosphere. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity and temperature at which the quantity described by the standard name applies, provide scalar coordinate variables with standard names of "relative_humidity" and "air_temperature". The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The chemical formula for the nitrate anion is NO3-." label="AtmosphereOpticalThicknessDueToNitrateAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Nitrate Ambient Aerosol Particles" uid="atmosphere_optical_thickness_due_to_nitrate_ambient_aerosol_particles" units="1"></item>13152 13092 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Sn" means the element "tin" and "125Sn" is the isotope "tin-125" with a half-life of 9.65e+00 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf125SnInAir" title="Integral Wrt Time of Radioactivity Concentration of 125Sn in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_125Sn_in_air" units="Bq s m-3"></item> 13153 13093 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. Runoff flux over land ice is the difference between any available liquid water in the snowpack due to rainfall and melting minus any refreezing and liquid water retained in the snowpack. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="LandIceRunoffFlux" title="Land Ice Runoff Flux" uid="land_ice_runoff_flux" units="kg m-2 s-1"></item> 13154 13094 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for ethanol isC2H5OH." label="MassFractionOfEthanolInAir" title="Mass Fraction of Ethanol in Air" uid="mass_fraction_of_ethanol_in_air" units="1"></item> 13155 <item description="Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection." label="OceanTracerDiffusivityDueToParameterizedMesoscaleEddyAdvection" title="Ocean Tracer Diffusivity due to Parameterized Mesoscale Eddy Advection" uid="ocean_tracer_diffusivity_due_to_parameterized_mesoscale_eddy_advection" units="m2 s-1"></item>13156 13095 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Rn" means the element "radon" and "222Rn" is the isotope "radon-222" with a half-life of 3.82e+00 days." label="RadioactivityConcentrationOf222RnInAir" title="Radioactivity Concentration of 222Rn in Air" uid="radioactivity_concentration_of_222Rn_in_air" units="Bq m-3"></item> 13157 13096 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pa" means the element "protactinium" and "234mPa" is the metastable state of the isotope "protactinium-234" with a half-life of 8.13e-04 days." label="SurfaceRadioactivityContentOf234Mpa" title="Surface Radioactivity Content of 234Mpa" uid="surface_radioactivity_content_of_234mPa" units="Bq m-2"></item> 13158 13097 <item description="The surface called "surface" means the lower boundary of the atmosphere. The surface temperature is the temperature at the interface, not the bulk temperature of the medium above or below. Unless indicated in the cell_methods attribute, a quantity is assumed to apply to the whole area of each horizontal grid box. Previously, the qualifier where_type was used to specify that the quantity applies only to the part of the grid box of the named type. Names containing the where_type qualifier are deprecated and newly created data should use the cell_methods attribute to indicate the horizontal area to which the quantity applies." label="SurfaceTemperature" title="Surface Temperature" uid="surface_temperature" units="K"></item> 13159 13098 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for HCFC142b is CH3CClF2. The IUPAC name for HCFC142b is 1-chloro-1,1-difluoroethane." label="AtmosphereMolesOfHcfc142B" title="Atmosphere Moles of Hcfc142B" uid="atmosphere_moles_of_hcfc142b" units="mol"></item> 13160 <item description=""Eastward" indicates a vector component which is positive when directed eastward (negative westward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="EastwardWaterVaporFluxInAir" title="Eastward Water Vapor Flux in Air" uid="eastward_water_vapor_flux_in_air" units="kg m-2 s-1"></item>13161 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). Convective cloud is that produced by the convection schemes in an atmosphere model." label="MassFractionOfConvectiveCloudIceInAir" title="Mass Fraction of Convective Cloud Ice in Air" uid="mass_fraction_of_convective_cloud_ice_in_air" units="1"></item>13162 13099 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical symbol for atomic nitrogen is N." label="MoleConcentrationOfAtomicNitrogenInAir" title="Mole Concentration of Atomic Nitrogen in Air" uid="mole_concentration_of_atomic_nitrogen_in_air" units="mol m-3"></item> 13163 13100 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for nitrogen dioxide is NO2." label="TendencyOfAtmosphereMassContentOfNitrogenDioxideDueToEmission" title="Tendency of Atmosphere Mass Content of Nitrogen Dioxide due to Emission" uid="tendency_of_atmosphere_mass_content_of_nitrogen_dioxide_due_to_emission" units="kg m-2 s-1"></item> 13164 13101 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. "Water" means water in all phases." label="TendencyOfAtmosphereMassContentOfWaterDueToAdvection" title="Tendency of Atmosphere Mass Content of Water due to Advection" uid="tendency_of_atmosphere_mass_content_of_water_due_to_advection" units="kg m-2 s-1"></item> 13165 13102 <item description="alias::tendency_of_atmosphere_water_vapor_content_due_to_turbulence" label="TendencyOfAtmosphereMassContentOfWaterVaporDueToTurbulence" title="Tendency of Atmosphere Mass Content of Water Vapor due to Turbulence [alias]" uid="tendency_of_atmosphere_water_vapor_content_due_to_turbulence" units="kg m-2 s-1"></item> 13166 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Nd" means the element "neodymium" and "144Nd" is the isotope "neodymium-144" with a half-life of 7.64e+17 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf144NdInAir" title="Integral Wrt Time of Radioactivity Concentration of 144Nd in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_144Nd_in_air" units="Bq s m-3"></item>13167 <item description="Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constiuents of A." label="NetPrimaryProductionOfBiomassExpressedAsCarbonPerUnitVolumeInSeaWater" title="Net Primary Production of Biomass Expressed As Carbon Per Unit Volume in Sea Water" uid="net_primary_production_of_biomass_expressed_as_carbon_per_unit_volume_in_sea_water" units="kg m-3 s-1"></item>13168 <item description="Transport "across_line" means that which crosses a particular line on the Earth's surface; formally this means the integral along the line of the normal component of the transport." label="OceanVolumeTransportAcrossLine" title="Ocean Volume Transport Across Line" uid="ocean_volume_transport_across_line" units="m3 s-1"></item>13169 13103 <item description="Standard names for "platform" describe the motion and orientation of the vehicle from which observations are made e.g. aeroplane, ship or satellite. Platform zenith angle is the the angle between the line of sight to the platform and the local zenith at the observation target. This angle is measured starting from directly overhead and its range is from zero (directly overhead the observation target) to 180 degrees (directly below the observation target). Local zenith is a line perpendicular to the Earth's surface at a given location. "Observation target" means a location on the Earth defined by the sensor performing the observations. A standard name also exists for sensor_zenith_angle. For some viewing geometries the sensor and the platform cannot be assumed to be close enough to neglect the difference in calculated zenith angle." label="PlatformZenithAngle" title="Platform Zenith Angle" uid="platform_zenith_angle" units="degree"></item> 13170 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second." label="SurfaceRadioactivityContent" title="Surface Radioactivity Content" uid="surface_radioactivity_content" units=""></item>13171 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same." label="TendencyOfSeaWaterSalinityExpressedAsSaltContentDueToParameterizedEddyAdvection" title="Tendency of Sea Water Salinity Expressed As Salt Content due to Parameterized Eddy Advection" uid="tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_eddy_advection" units="kg m-2 s-1"></item>13172 13104 <item description="Air pressure at sea level is the quantity often abbreviated as MSLP or PMSL. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation. "Mean sea level" means the time mean of sea surface elevation at a given location over an arbitrary period sufficient to eliminate the tidal signals." label="AirPressureAtMeanSeaLevel" title="Air Pressure At Mean Sea Level" uid="air_pressure_at_mean_sea_level" units="Pa"></item> 13173 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Po" means the element "polonium" and "212Po" is the isotope "polonium-212" with a half-life of 3.52e-12 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf212PoInAir" title="Integral Wrt Time of Radioactivity Concentration of 212Po in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_212Po_in_air" units="Bq s m-3"></item>13174 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Bk" means the element "berkelium" and "250Bk" is the isotope "berkelium-250" with a half-life of 1.34e-01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf250BkInAir" title="Integral Wrt Time of Radioactivity Concentration of 250Bk in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_250Bk_in_air" units="Bq s m-3"></item>13175 13105 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol. "Dry aerosol particles" means aerosol particles without any water uptake. "Primary particulate organic matter " means all organic matter emitted directly to the atmosphere as particles except elemental carbon. The sum of primary_particulate_organic_matter_dry_aerosol and secondary_particulate_organic_matter_dry_aerosol is particulate_organic_matter_dry_aerosol. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The "savanna and grassland fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in non-forested areas. It excludes field burning of agricultural residues. "Savanna and grassland fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfParticulateOrganicMatterDryAerosolParticlesExpressedAsCarbonDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Particulate Organic Matter Dry Aerosol Particles Expressed As Carbon due to Emission from Savanna And Grassland Fires" uid="tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_particles_expressed_as_carbon_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> 13176 <item description="alias::upwelling_spectral_radiative_flux_in_air" label="UpwellingRadiativeFluxPerUnitWavelengthInAir" title="Upwelling Radiative Flux Per Unit Wavelength in Air [alias]" uid="upwelling_spectral_radiative_flux_in_air" units="W m-2 m-1"></item>13177 13106 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Sm" means the element "samarium" and "148Sm" is the isotope "samarium-148" with a half-life of 2.92e+18 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf148SmInAir" title="Integral Wrt Time of Radioactivity Concentration of 148Sm in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_148Sm_in_air" units="Bq s m-3"></item> 13178 <item description="'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis." label="MoleConcentrationOfPhytoplanktonExpressedAsSiliconInSeaWater" title="Mole Concentration of Phytoplankton Expressed As Silicon in Sea Water" uid="mole_concentration_of_phytoplankton_expressed_as_silicon_in_sea_water" units="mol m-3"></item>13179 13107 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Xe" means the element "xenon" and "137Xe" is the isotope "xenon-137" with a half-life of 2.71e-03 days." label="RadioactivityConcentrationOf137XeInAir" title="Radioactivity Concentration of 137Xe in Air" uid="radioactivity_concentration_of_137Xe_in_air" units="Bq m-3"></item> 13180 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Wet deposition" means deposition by precipitation." label="TendencyOfAtmosphereMassContentOfAmmoniaDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Ammonia due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_ammonia_due_to_wet_deposition" units="kg m-2 s-1"></item>13181 13108 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition" is the sum of turbulent deposition and gravitational settling. The chemical formula for hydrogen peroxide is H2O2." label="TendencyOfAtmosphereMassContentOfHydrogenPeroxideDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Hydrogen Peroxide due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_hydrogen_peroxide_due_to_dry_deposition" units="kg m-2 s-1"></item> 13182 <item description="alias::moles_of_methyl_bromide_in_atmosphere" label="AtmosphereMolesOfMethylBromide" title="Atmosphere Moles of Methyl Bromide [alias]" uid="moles_of_methyl_bromide_in_atmosphere" units="mol"></item>13183 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for isoprene is CH2=C(CH3)CH=CH2. The IUPAC name for isoprene is 2-methyl-buta-1,3-diene. Isoprene is a member of the group of hydrocarbons known as terpenes. There are standard names for the terpene group as well as for some of the individual species." label="AtmosphereMolesOfIsoprene" title="Atmosphere Moles of Isoprene" uid="atmosphere_moles_of_isoprene" units="mol"></item>13184 13109 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Divalent mercury" means all compounds in which the mercury has two binding sites to other ion(s) in a salt or to other atom(s) in a molecule." label="MassConcentrationOfGaseousDivalentMercuryInAir" title="Mass Concentration of Gaseous Divalent Mercury in Air" uid="mass_concentration_of_gaseous_divalent_mercury_in_air" units="kg m-3"></item> 13185 13110 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for methyl_peroxy_radical is CH3O2. In chemistry, a 'radical' is a highly reactive, and therefore shortlived, species." label="MassFractionOfMethylPeroxyRadicalInAir" title="Mass Fraction of Methyl Peroxy Radical in Air" uid="mass_fraction_of_methyl_peroxy_radical_in_air" units="1"></item> 13186 13111 <item description=""y" indicates a vector component along the grid y-axis, positive with increasing y. Salt transport refers to the mass of salt being transported." label="OceanSaltYTransport" title="Ocean Salt Y Transport" uid="ocean_salt_y_transport" units="1e-3 kg s-1"></item> 13187 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "La" means the element "lanthanum" and "141La" is the isotope "lanthanum-141" with a half-life of 1.61e-01 days." label="RadioactivityConcentrationOf141LaInAir" title="Radioactivity Concentration of 141La in Air" uid="radioactivity_concentration_of_141La_in_air" units="Bq m-3"></item> 13188 <item description="The surface called "surface" means the lower boundary of the atmosphere. Downwelling radiation is radiation from above. It does not mean "net downward". "Photosynthetic" radiation is the part of the spectrum which is used in photosynthesis e.g. 400-700 nm. The range of wavelengths could be specified precisely by the bounds of a coordinate of radiation_wavelength. A photon flux is specified in terms of numbers of photons expressed in moles. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceDownwellingPhotosyntheticPhotonFluxInSeaWater" title="Surface Downwelling Photosynthetic Photon Flux in Sea Water" uid="surface_downwelling_photosynthetic_photon_flux_in_sea_water" units="mol m-2 s-1"></item> 13189 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMoleConcentrationOfParticulateOrganicMatterExpressedAsCarbonInSeaWaterDueToNetPrimaryProductionByPicophytoplankton" title="Tendency of Mole Concentration of Particulate Organic Matter Expressed As Carbon in Sea Water due to Net Primary Production by Picophytoplankton" uid="tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_picophytoplankton" units="mol m-3 s-1"></item> 13190 <item description=""Content" indicates a quantity per unit area." label="WoodCarbonContent" title="Wood Carbon Content" uid="wood_carbon_content" units="kg m-2"></item> 13112 <item description="alias::wood_carbon_content" label="StemMassContentOfCarbon" title="Stem Mass Content of Carbon [alias]" uid="wood_carbon_content" units="kg m-2"></item> 13191 13113 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "U" means the element "uranium" and "239U" is the isotope "uranium-239" with a half-life of 1.63e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf239UInAir" title="Integral Wrt Time of Radioactivity Concentration of 239U in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_239U_in_air" units="Bq s m-3"></item> 13192 13114 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Kr" means the element "krypton" and "83mKr" is the metastable state of the isotope "krypton-83" with a half-life of 7.71e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf83MkrInAir" title="Integral Wrt Time of Radioactivity Concentration of 83Mkr in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_83mKr_in_air" units="Bq s m-3"></item> 13193 <item description=""Content" indicates a quantity per unit area. "Water" means water in all phases. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be "model_level_number", but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Quantities defined for a soil layer must have a vertical coordinate variable with boundaries indicating the extent of the layer(s)." label="MassContentOfWaterInSoilLayer" title="Mass Content of Water in Soil Layer" uid="mass_content_of_water_in_soil_layer" units="kg m-2"></item>13194 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for hydrogen peroxide is H2O2." label="MassFractionOfHydrogenPeroxideInAir" title="Mass Fraction of Hydrogen Peroxide in Air" uid="mass_fraction_of_hydrogen_peroxide_in_air" units="1"></item>13195 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'." label="MoleConcentrationOfPhosphateInSeaWater" title="Mole Concentration of Phosphate in Sea Water" uid="mole_concentration_of_phosphate_in_sea_water" units="mol m-3"></item>13196 13115 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "dry_deposition" is the sum of turbulent deposition and gravitational settling. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. Usually, particle bound and gaseous nitrogen compounds, such as atomic nitrogen (N), nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), nitrate (NO3-), peroxynitric acid (HNO4), ammonia (NH3), ammonium (NH4+), bromine nitrate (BrONO2), chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)) are included. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute." label="TendencyOfAtmosphereMassContentOfNitrogenCompoundsExpressedAsNitrogenDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Nitrogen Compounds Expressed As Nitrogen due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_dry_deposition" units="kg m-2 s-1"></item> 13197 13116 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Pm10 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Dry deposition" is the sum of turbulent deposition and gravitational settling. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfAtmosphereMassContentOfPm10SeaSaltDryAerosolParticlesDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Pm10 Sea Salt Dry Aerosol Particles due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_pm10_sea_salt_dry_aerosol_particles_due_to_dry_deposition" units="kg m-2 s-1"></item> 13198 13117 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.)" label="TendencyOfPotentialEnergyContentOfOceanLayerDueToDiffusion" title="Tendency of Potential Energy Content of Ocean Layer due to Diffusion" uid="tendency_of_potential_energy_content_of_ocean_layer_due_to_diffusion" units="W m-2"></item> 13199 <item description=""tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Vertical mixing" means any vertical transport other than by advection and parameterized eddy advection, represented by a combination of vertical diffusion, turbulent mixing and convection in ocean models. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990." label="TendencyOfSeaWaterTemperatureDueToVerticalMixing" title="Tendency of Sea Water Temperature due to Vertical Mixing" uid="tendency_of_sea_water_temperature_due_to_vertical_mixing" units="K s-1"></item>13200 <item description="alias::net_primary_mole_productivity_of_carbon_by_miscellaneous_phytoplankton" label="NetPrimaryMoleProductivityOfBiomassExpressedAsCarbonByMiscellaneousPhytoplankton" title="Net Primary Mole Productivity of Biomass Expressed As Carbon by Miscellaneous Phytoplankton [alias]" uid="net_primary_mole_productivity_of_carbon_by_miscellaneous_phytoplankton" units="mol m-2 s-1"></item>13201 <item description="alias::tendency_of_atmosphere_mass_content_of_seasalt_dry_aerosol_particles_due_to_gravitational_settling" label="TendencyOfAtmosphereMassContentOfSeaSaltDryAerosolParticlesDueToGravitationalSettling" title="Tendency of Atmosphere Mass Content of Sea Salt Dry Aerosol Particles due to Gravitational Settling [alias]" uid="tendency_of_atmosphere_mass_content_of_seasalt_dry_aerosol_particles_due_to_gravitational_settling" units="kg m-2 s-1"></item>13202 13118 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Alkenes are unsaturated hydrocarbons as they contain chemical double bonds between adjacent carbon atoms. Alkenes contain only hydrogen and carbon combined in the general proportions C(n)H(2n); "alkenes" is the term used in standard names to describe the group of chemical species having this common structure that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names exist for some individual alkene species, e.g., ethene and propene." label="AtmosphereMassContentOfAlkenes" title="Atmosphere Mass Content of Alkenes" uid="atmosphere_mass_content_of_alkenes" units="kg m-2"></item> 13203 13119 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Tc" means the element "technetium" and "99mTc" is the metastable state of the isotope "technetium-99" with a half-life of 2.51e-01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf99MtcInAir" title="Integral Wrt Time of Radioactivity Concentration of 99Mtc in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_99mTc_in_air" units="Bq s m-3"></item> … … 13237 13153 <item description=""tendency_of_X" means derivative of X with respect to time. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "Grazing of phytoplankton" means the grazing of phytoplankton by zooplankton." label="TendencyOfMoleConcentrationOfParticulateOrganicMatterExpressedAsCarbonInSeaWaterDueToGrazingOfPhytoplankton" title="Tendency of Mole Concentration of Particulate Organic Matter Expressed As Carbon in Sea Water due to Grazing of Phytoplankton" uid="tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_grazing_of_phytoplankton" units="mol m-3 s-1"></item> 13238 13154 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="TranspirationFlux" title="Transpiration Flux" uid="transpiration_flux" units="kg m-2 s-1"></item> 13155 <item description=""Content" indicates a quantity per unit area. "Wood debris" means dead organic matter composed of coarse wood. It is distinct from fine litter. The precise distinction between "fine" and "coarse" is model dependent. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material." label="WoodDebrisMassContentOfCarbon" title="Wood Debris Mass Content of Carbon" uid="wood_debris_mass_content_of_carbon" units="kg m-2"></item> 13239 13156 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Br" means the element "bromine" and "84Br" is the isotope "bromine-84" with a half-life of 2.21e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf84BrInAir" title="Integral Wrt Time of Radioactivity Concentration of 84Br in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_84Br_in_air" units="Bq s m-3"></item> 13240 13157 <item description="The wave directional spectrum can be written as a five dimensional function S(t,x,y,f,theta) where t is time, x and y are horizontal coordinates (such as longitude and latitude), f is frequency and theta is direction. S has the standard name sea_surface_wave_directional_variance_spectral_density. S can be integrated over direction to give S1= integral(S dtheta) and this quantity has the standard name sea_surface_wave_variance_spectral_density. Frequency moments, M(n) of S1 can then be calculated as follows: M(n) = integral(S1 f^n df), where f^n is f to the power of n. The second wave period, T(m2) is calculated as the square root of the ratio M(0)/M(2)." label="SeaSurfaceWaveMeanPeriodFromVarianceSpectralDensitySecondFrequencyMoment" title="Sea Surface Wave Mean Period from Variance Spectral Density Second Frequency Moment" uid="sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment" units="s"></item> … … 13282 13199 <item description="alias::net_primary_mole_productivity_of_carbon_by_phytoplankton" label="NetPrimaryMoleProductivityOfBiomassExpressedAsCarbonByPhytoplankton" title="Net Primary Mole Productivity of Biomass Expressed As Carbon by Phytoplankton [alias]" uid="net_primary_mole_productivity_of_carbon_by_phytoplankton" units="mol m-2 s-1"></item> 13283 13200 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToIcefall" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Icefall" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_icefall" units="s-1"></item> 13201 <item description=""Content" indicates a quantity per unit area. "Wood debris" means dead organic matter composed of coarse wood. It is distinct from fine litter. The precise distinction between "fine" and "coarse" is model dependent. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material." label="WoodDebrisMassContentOfNitrogen" title="Wood Debris Mass Content of Nitrogen" uid="wood_debris_mass_content_of_nitrogen" units="kg m-2"></item> 13284 13202 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Te" means the element "tellurium" and "134Te" is the isotope "tellurium-134" with a half-life of 2.92e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf134TeInAir" title="Integral Wrt Time of Radioactivity Concentration of 134Te in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_134Te_in_air" units="Bq s m-3"></item> 13285 13203 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Fr" means the element "francium" and "221Fr" is the isotope "francium-221" with a half-life of 3.33e-03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf221FrInAir" title="Integral Wrt Time of Radioactivity Concentration of 221Fr in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_221Fr_in_air" units="Bq s m-3"></item> … … 13295 13213 <item description="Mole fraction is used in the construction "mole_fraction_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". Alkenes are unsaturated hydrocarbons as they contain chemical double bonds between adjacent carbon atoms. "Hydrocarbon" means a compound containing hydrogen and carbon. Alkenes contain only hydrogen and carbon combined in the general proportions C(n)H(2n); "alkenes" is the term used in standard names to describe the group of chemical species having this common structure that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names exist for some individual alkene species, e.g., ethene and propene." label="MoleFractionOfAlkenesInAir" title="Mole Fraction of Alkenes in Air" uid="mole_fraction_of_alkenes_in_air" units="1"></item> 13296 13214 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Es" means the element "einsteinium" and "254Es" is the isotope "einsteinium-254" with a half-life of 2.76e+02 days." label="RadioactivityConcentrationOf254EsInAir" title="Radioactivity Concentration of 254Es in Air" uid="radioactivity_concentration_of_254Es_in_air" units="Bq m-3"></item> 13215 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. It is assumed that all the respired carbon dioxide is emitted to the atmosphere. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationForBiomassGrowth" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration For Biomass Growth" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_for_biomass_growth" units="kg m-2 s-1"></item> 13297 13216 <item description="alias::tendency_of_atmosphere_mass_content_of_black_carbon_dry_aerosol_due_to_emission_from_savanna_and_grassland_fires" label="TendencyOfAtmosphereMassContentOfElementalCarbonDryAerosolParticlesDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Elemental Carbon Dry Aerosol Particles due to Emission from Savanna And Grassland Fires [alias]" uid="tendency_of_atmosphere_mass_content_of_black_carbon_dry_aerosol_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> 13298 13217 <item description=""Amount" means mass per unit area. The construction thickness_of_[X_]rainfall_amount means the accumulated "depth" of rainfall i.e. the thickness of a layer of liquid water having the same mass per unit area as the rainfall amount." label="ThicknessOfRainfallAmount" title="Thickness of Rainfall Amount" uid="thickness_of_rainfall_amount" units="m"></item> … … 13427 13346 <item description=""Age of stratospheric air" means an estimate of the time since a parcel of stratospheric air was last in contact with the troposphere." label="AgeOfStratosphericAir" title="Age of Stratospheric Air" uid="age_of_stratospheric_air" units="s"></item> 13428 13347 <item description="alias::atmosphere_surface_drag_coefficient_of_heat" label="SurfaceDragCoefficientForHeatInAir" title="Surface Drag Coefficient For Heat in Air [alias]" uid="atmosphere_surface_drag_coefficient_of_heat" units="1"></item> 13429 <item description=""Eastward" indicates a vector component which is positive when directed eastward (negative westward). " label="EastwardTransformedEulerianMeanAirVelocity" title="Eastward Transformed Eulerian Mean Air Velocity" uid="eastward_transformed_eulerian_mean_air_velocity" units="m s-1"></item>13348 <item description=""Eastward" indicates a vector component which is positive when directed eastward (negative westward). The "Transformed Eulerian Mean" refers to a formulation of the mean equations which incorporates some eddy terms into the definition of the mean, described in Andrews et al (1987): Middle Atmospheric Dynamics. Academic Press." label="EastwardTransformedEulerianMeanAirVelocity" title="Eastward Transformed Eulerian Mean Air Velocity" uid="eastward_transformed_eulerian_mean_air_velocity" units="m s-1"></item> 13430 13349 <item description=""X_area_fraction" means the fraction of horizontal area occupied by X. A "floating ice shelf", sometimes called a "floating ice sheet", indicates where an ice sheet extending from a land area flows over sea water." label="FloatingIceShelfAreaFraction" title="Floating Ice Shelf Area Fraction" uid="floating_ice_shelf_area_fraction" units="1"></item> 13431 13350 <item description="alias::gross_primary_productivity_of_carbon" label="GrossPrimaryProductivityOfBiomassExpressedAsCarbon" title="Gross Primary Productivity of Biomass Expressed As Carbon [alias]" uid="gross_primary_productivity_of_carbon" units="kg m-2 s-1"></item> … … 13470 13389 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ge" means the element "germanium" and "75Ge" is the isotope "germanium-75" with a half-life of 5.73e-02 days." label="RadioactivityConcentrationOf75GeInAir" title="Radioactivity Concentration of 75Ge in Air" uid="radioactivity_concentration_of_75Ge_in_air" units="Bq m-3"></item> 13471 13390 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Sr" means the element "strontium" and "90Sr" is the isotope "strontium-90" with a half-life of 1.02e+04 days." label="RadioactivityConcentrationOf90SrInAir" title="Radioactivity Concentration of 90Sr in Air" uid="radioactivity_concentration_of_90Sr_in_air" units="Bq m-3"></item> 13472 <item description=" "Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. "Soil carbon" is the organic matter present in soil quantified by the mass of carbon it contains. Soil carbon is returned to the atmosphere as the organic matter decays. The decay process takes varying amounts of time depending on the composition of the organic matter, the temperature and the availability of moisture. A carbon "soil pool" means the carbon contained in organic matter which has a characteristic period over which it decays and releases carbon into the atmosphere. "Slow soil pool" refers to the decay of organic matter in soil with a characteristic period of more than a hundred years under reference climate conditions of a temperature of 20 degrees Celsius and no water limitations." label="SlowSoilPoolCarbonContent" title="Slow Soil Pool Carbon Content" uid="slow_soil_pool_carbon_content" units="kg m-2"></item>13391 <item description="alias::slow_soil_pool_carbon_content" label="SlowSoilPoolMassContentOfCarbon" title="Slow Soil Pool Mass Content of Carbon [alias]" uid="slow_soil_pool_carbon_content" units="kg m-2"></item> 13473 13392 <item description="Stratiform precipitation, whether liquid or frozen, is precipitation that formed in stratiform cloud." label="StratiformRainfallRate" title="Stratiform Rainfall Rate" uid="stratiform_rainfall_rate" units="m s-1"></item> 13474 13393 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ge" means the element "germanium" and "78Ge" is the isotope "germanium-78" with a half-life of 6.03e-02 days." label="SurfaceRadioactivityContentOf78Ge" title="Surface Radioactivity Content of 78Ge" uid="surface_radioactivity_content_of_78Ge" units="Bq m-2"></item> … … 13477 13396 <item description="alias::bolus_sea_water_y_velocity" label="SeaWaterYVelocityDueToParameterizedMesoscaleEddies" title="Sea Water Y Velocity due to Parameterized Mesoscale Eddies [alias]" uid="bolus_sea_water_y_velocity" units="m s-1"></item> 13478 13397 <item description="alias::floating_ice_sheet_area_fraction" label="FloatingIceShelfAreaFraction" title="Floating Ice Shelf Area Fraction [alias]" uid="floating_ice_sheet_area_fraction" units="1"></item> 13398 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. Soil carbon is returned to the atmosphere as the organic matter decays. The decay process takes varying amounts of time depending on the composition of the organic matter, the temperature and the availability of moisture. A carbon "soil pool" means the carbon contained in organic matter which has a characteristic period over which it decays and releases carbon into the atmosphere. "Medium soil pool" refers to the decay of organic matter in soil with a characteristic period of between ten and one hundred years under reference climate conditions of a temperature of 20 degrees Celsius and no water limitations." label="MediumSoilPoolMassContentOfCarbon" title="Medium Soil Pool Mass Content of Carbon" uid="medium_soil_pool_mass_content_of_carbon" units="kg m-2"></item> 13479 13399 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Vertical tracer diffusivity" means the vertical component of the diffusivity of tracers, i.e. heat and salinity, due to motion which is not resolved on the grid scale of the model." label="OceanVerticalTracerDiffusivityDueToWindMixing" title="Ocean Vertical Tracer Diffusivity due to Wind Mixing" uid="ocean_vertical_tracer_diffusivity_due_to_wind_mixing" units="m2 s-1"></item> 13480 13400 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Fr" means the element "francium" and "221Fr" is the isotope "francium-221" with a half-life of 3.33e-03 days." label="RadioactivityConcentrationOf221FrInAir" title="Radioactivity Concentration of 221Fr in Air" uid="radioactivity_concentration_of_221Fr_in_air" units="Bq m-3"></item> … … 13515 13435 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pd" means the element "palladium" and "107Pd" is the isotope "palladium-107" with a half-life of 2.37e+09 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf107PdInAir" title="Integral Wrt Time of Radioactivity Concentration of 107Pd in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_107Pd_in_air" units="Bq s m-3"></item> 13516 13436 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Bi" means the element "bismuth" and "210Bi" is the isotope "bismuth-210" with a half-life of 5.01e+00 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf210BiInAir" title="Integral Wrt Time of Radioactivity Concentration of 210Bi in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_210Bi_in_air" units="Bq s m-3"></item> 13517 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). Plant respiration is the sum of respiration by parts of plants both above and below the soil. Plants which photosynthesise are autotrophs i.e."producers" of the biomass which they respire from inorganic precursors using sunlight for energy. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The surface called "surface" means the lower boundary of the atmosphere. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="SurfaceUpwardCarbonMassFluxDueToPlantRespirationForBiomassMaintenance" title="Surface Upward Carbon Mass Flux due to Plant Respiration For Biomass Maintenance" uid="surface_upward_carbon_mass_flux_due_to_plant_respiration_for_biomass_maintenance" units="kg m-2 s-1"></item>13518 13437 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for nitrogen dioxide is NO2. The "savanna and grassland fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in non-forested areas. It excludes field burning of agricultural residues. "Savanna and grassland fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfNitrogenDioxideDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Nitrogen Dioxide due to Emission from Savanna And Grassland Fires" uid="tendency_of_atmosphere_mass_content_of_nitrogen_dioxide_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> 13519 13438 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Mo" means the element "molybdenum" and "99Mo" is the isotope "molybdenum-99" with a half-life of 2.78e+00 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf99MoInAir" title="Integral Wrt Time of Radioactivity Concentration of 99Mo in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_99Mo_in_air" units="Bq s m-3"></item> 13520 13439 <item description="Global average sea level change is due to change in volume of the water in the ocean, caused by mass and/or density change, or to change in the volume of the ocean basins, caused by tectonics etc. It is sometimes called "eustatic", which is a term that also has other definitions. It differs from the change in the global average sea surface height relative to the centre of the Earth by the global average vertical movement of the ocean floor. Zero sea level change is an arbitrary level. Phase is the initial angle of a wave modelled by a sinusoidal function. A coordinate variable of harmonic_period should be used to specify the period of the sinusoidal wave. Because global average sea level change quantifies the change in volume of the world ocean, it is not calculated necessarily by considering local changes in mean sea level." label="PhaseOfGlobalAverageSeaLevelChange" title="Phase of Global Average Sea Level Change" uid="phase_of_global_average_sea_level_change" units="degree"></item> 13440 <item description="alias::surface_upward_carbon_mass_flux_due_to_plant_respiration_for_biomass_maintenance" label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationForBiomassMaintenance" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration For Biomass Maintenance [alias]" uid="surface_upward_carbon_mass_flux_due_to_plant_respiration_for_biomass_maintenance" units="kg m-2 s-1"></item> 13521 13441 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. Speed is the magnitude of velocity. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity." label="TendencyOfWindSpeedDueToConvection" title="Tendency of Wind Speed due to Convection" uid="tendency_of_wind_speed_due_to_convection" units="m s-2"></item> 13522 13442 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. "Volcanic_ash" means the fine-grained products of explosive volcanic eruptions, such as minerals or crystals, older fragmented rock (e.g. andesite), and glass. Particles within a volcanic ash cloud have diameters less than 2 mm. "Volcanic_ash" does not include non-volcanic dust. " label="AtmosphereMassContentOfVolcanicAsh" title="Atmosphere Mass Content of Volcanic Ash" uid="atmosphere_mass_content_of_volcanic_ash" units="kg m-2"></item> … … 13721 13641 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Sr" means the element "strontium" and "91Sr" is the isotope "strontium-91" with a half-life of 3.95e-01 days." label="SurfaceRadioactivityContentOf91Sr" title="Surface Radioactivity Content of 91Sr" uid="surface_radioactivity_content_of_91Sr" units="Bq m-2"></item> 13722 13642 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Alcohols include all organic compounds with an alcoholic (OH) group. In standard names "alcohols" is the term used to describe the group of chemical species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "solvent production and use" sector comprises industrial processes related to the consumption of halocarbons, SF6, solvent and other product use. "Solvent production and use" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 2F and 3 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfAlcoholsDueToEmissionFromSolventProductionAndUse" title="Tendency of Atmosphere Mass Content of Alcohols due to Emission from Solvent Production And Use" uid="tendency_of_atmosphere_mass_content_of_alcohols_due_to_emission_from_solvent_production_and_use" units="kg m-2 s-1"></item> 13643 <item description="The quantity with standard name sea_water_added_potential_temperature is a passive tracer in an ocean model whose surface flux does not come from the atmosphere but is imposed externally upon the simulated climate system. The surface flux is expressed as a heat flux and converted to a passive tracer increment as if it were a heat flux being added to potential temperature. The passive tracer is transported within the ocean as if it were potential temperature. The passive tracer is zero in the control climate of the model. The passive tracer records added heat, as described for the CMIP6 FAFMIP experiment (doi:10.5194/gmd-9-3993-2016), following earlier ideas. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure." label="SeaWaterAddedPotentialTemperature" title="Sea Water Added Potential Temperature" uid="sea_water_added_potential_temperature" units="degree_C"></item> 13644 <item description="A variable with the standard name of soil_pool contains strings which indicate the character of the soil pool classified according to the decay rate of the organic carbon material it contains. These strings are have not yet been standardised." label="SoilPool" title="Soil Pool" uid="soil_pool" units=""></item> 13645 <item description=""Content" indicates a quantity per unit area. "Litter" is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between "fine" and "coarse" is model dependent. "Subsurface litter" means the part of the litter mixed within the soil below the surface. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material." label="SubsurfaceLitterMassContentOfNitrogen" title="Subsurface Litter Mass Content of Nitrogen" uid="subsurface_litter_mass_content_of_nitrogen" units="kg m-2"></item> 13723 13646 <item description="Instantaneous forcing is the radiative flux change caused instantaneously by an imposed change in radiative forcing agent (greenhouse gases, aerosol, solar radiation, etc.)." label="TropopauseInstantaneousRadiativeForcing" title="Tropopause Instantaneous Radiative Forcing" uid="tropopause_instantaneous_radiative_forcing" units="W m-2"></item> 13724 13647 <item description="A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Geostrophic" indicates that geostrophic balance is assumed, i.e. that the pressure gradient force and the Coriolis force are balanced and the large scale fluid flow is parallel to the isobars." label="GeostrophicEastwardSeaWaterVelocity" title="Geostrophic Eastward Sea Water Velocity" uid="geostrophic_eastward_sea_water_velocity" units="m s-1"></item> … … 13765 13688 <item description="Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity." label="SeaWaterSalinity" title="Sea Water Salinity" uid="sea_water_salinity" units="1e-3"></item> 13766 13689 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Northward" indicates a vector component which is positive when directed northward (negative southward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward northward" indicates the ZY component of a tensor. A downward northward stress is a downward flux of northward momentum, which accelerates the lower medium northward and the upper medium southward. The surface downward stress is the windstress on the surface." label="SurfaceDownwardNorthwardStress" title="Surface Downward Northward Stress" uid="surface_downward_northward_stress" units="Pa"></item> 13767 <item description="The surface called "surface" means the lower boundary of the atmosphere. "ratio_of_X_to_Y" means X/Y. Upwelling radiation is radiation from below. It does not mean "net upward". Downwelling radiation is radiation from above. It does not mean "net downward". Radiance is the radiative flux in a particular direction, per unit of solid angle. The direction towards which it is going must be specified, for instance with a coordinate of angle_of_emergence. Radiative flux is the sum of shortwave and longwave radiative fluxes. When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In relation to satellite ocean color products the quantity named surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air is sometimes called "remote sensing reflectance" and has a bidirectional dependence. The direction of the downwelling flux can be specified using a coordinate with the standard name angle_of_incidence." label="SurfaceRatioOfUpwellingRadianceEmergingFromSeaWaterToDownwellingRadiativeFluxInAir" title="Surface Ratio of Upwelling Radiance Emerging from Sea Water to Downwelling Radiative Flux in Air" uid="surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" units="sr^-1"></item> 13690 <item description="The surface called "surface" means the lower boundary of the atmosphere. The phrase "ratio_of_X_to_Y" means X/Y. Upwelling radiation is radiation from below. It does not mean "net upward". Downwelling radiation is radiation from above. It does not mean "net downward". Radiance is the radiative flux in a particular direction, per unit of solid angle. The direction towards which it is going must be specified, for instance with a coordinate of angle_of_emergence. Radiative flux is the sum of shortwave and longwave radiative fluxes. When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In relation to satellite ocean color products the quantity named surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air is sometimes called "remote sensing reflectance" and has a bidirectional dependence. The direction of the downwelling flux can be specified using a coordinate with the standard name angle_of_incidence." label="SurfaceRatioOfUpwellingRadianceEmergingFromSeaWaterToDownwellingRadiativeFluxInAir" title="Surface Ratio of Upwelling Radiance Emerging from Sea Water to Downwelling Radiative Flux in Air" uid="surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" units="sr-1"></item> 13691 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. It is assumed that all the respired carbon dioxide is emitted to the atmosphere. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationForBiomassMaintenance" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration For Biomass Maintenance" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_for_biomass_maintenance" units="kg m-2 s-1"></item> 13768 13692 <item description="The surface called "surface" means the lower boundary of the atmosphere. Upwelling radiation is radiation from below. It does not mean "net upward". Radiance is the radiative flux in a particular direction, per unit of solid angle. The direction towards which it is going must be specified, for instance with a coordinate of zenith_angle. If the radiation does not depend on direction, a standard name of isotropic radiance should be chosen instead. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength." label="SurfaceUpwellingRadiancePerUnitWavelengthInAir" title="Surface Upwelling Radiance Per Unit Wavelength in Air" uid="surface_upwelling_radiance_per_unit_wavelength_in_air" units="W m-2 m-1 sr-1"></item> 13769 13693 <item description="alias::atmosphere_mass_content_of_seasalt_dry_aerosol" label="AtmosphereMassContentOfSeaSaltDryAerosolParticles" title="Atmosphere Mass Content of Sea Salt Dry Aerosol Particles [alias]" uid="atmosphere_mass_content_of_seasalt_dry_aerosol" units="kg m-2"></item> … … 13832 13756 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for ethyne is HC2H. Ethyne is the IUPAC name for this species, which is also commonlyknown as acetylene." label="MoleConcentrationOfEthyneInAir" title="Mole Concentration of Ethyne in Air" uid="mole_concentration_of_ethyne_in_air" units="mol m-3"></item> 13833 13757 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "La" means the element "lanthanum" and "140La" is the isotope "lanthanum-140" with a half-life of 1.76e+00 days." label="RadioactivityConcentrationOf140LaInAir" title="Radioactivity Concentration of 140La in Air" uid="radioactivity_concentration_of_140La_in_air" units="Bq m-3"></item> 13834 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. Mass balance means the net rate at which ice is accumulated. A negative value means loss of ice. "tendency_of_X" means derivative of X with respect to time. The tendency of land ice mass is the spatially integrated mass balance. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The tendency in ice mass due to the basal mass balance is the spatial integral of the quantity with standard name land_ice_basal_specific_mass_balance_flux. The horizontal domain over which the quantity is calculated is described by the associated coordinate variables and coordinate bounds or by a coordinate variable or scalar coordinate variable with the standard name of "region" supplied according to section 6.1.1 of the CF conventions." label="TendencyOfLandIceMassDueToBasalMassBalance" title="Tendency of Land Ice Mass due to Basal Mass Balance" uid="tendency_of_land_ice_mass_due_to_basal_mass_balance" units="kg s-1"></item>13758 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Mass balance means the net rate at which ice is accumulated. A negative value means loss of ice. The tendency in ice mass due to the basal mass balance is the spatial integral of the quantity with standard name land_ice_basal_specific_mass_balance_flux. The geographical extent of the ice over which the mass is calculated is defined by the horizontal coordinates and any associated coordinate bounds or by a string valued auxiliary coordinate variable with a standard name of "region"." label="TendencyOfLandIceMassDueToBasalMassBalance" title="Tendency of Land Ice Mass due to Basal Mass Balance" uid="tendency_of_land_ice_mass_due_to_basal_mass_balance" units="kg s-1"></item> 13835 13759 <item description="The albedo of cloud." label="CloudAlbedo" title="Cloud Albedo" uid="cloud_albedo" units="1"></item> 13836 13760 <item description=""Content" indicates a quantity per unit area. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. "Water" means water in all phases." label="MassContentOfWaterInAtmosphereLayer" title="Mass Content of Water in Atmosphere Layer" uid="mass_content_of_water_in_atmosphere_layer" units="kg m-2"></item> … … 13961 13885 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pa" means the element "protactinium" and "231Pa" is the isotope "protactinium-231" with a half-life of 1.19e+07 days." label="SurfaceRadioactivityContentOf231Pa" title="Surface Radioactivity Content of 231Pa" uid="surface_radioactivity_content_of_231Pa" units="Bq m-2"></item> 13962 13886 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for propene is C3H6. Propene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species. The "waste treatment and disposal" sector comprises solid waste disposal on land, wastewater handling, waste incineration and other waste disposal. "Waste treatment and disposal" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 6A, 6B, 6C and 6D as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfPropeneDueToEmissionFromWasteTreatmentAndDisposal" title="Tendency of Atmosphere Mass Content of Propene due to Emission from Waste Treatment And Disposal" uid="tendency_of_atmosphere_mass_content_of_propene_due_to_emission_from_waste_treatment_and_disposal" units="kg m-2 s-1"></item> 13887 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. A variable with the standard name of tendency_of_specific_humidity_due_to_stratiform_cloud_and_precipitation should contain the effects of all processes which convert stratiform clouds and precipitation to or from water vapor. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes)." label="TendencyOfSpecificHumidityDueToStratiformCloudAndPrecipitation" title="Tendency of Specific Humidity due to Stratiform Cloud And Precipitation" uid="tendency_of_specific_humidity_due_to_stratiform_cloud_and_precipitation" units="s-1"></item> 13963 13888 <item description="alias::tendency_of_water_vapor_content_of_atmosphere_layer_due_to_convection" label="TendencyOfMassContentOfWaterVaporInAtmosphereLayerDueToConvection" title="Tendency of Mass Content of Water Vapor in Atmosphere Layer due to Convection [alias]" uid="tendency_of_water_vapor_content_of_atmosphere_layer_due_to_convection" units="kg m-2 s-1"></item> 13964 13889 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for bromine chloride is BrCl." label="AtmosphereMassContentOfBromineChloride" title="Atmosphere Mass Content of Bromine Chloride" uid="atmosphere_mass_content_of_bromine_chloride" units="kg m-2"></item> … … 13985 13910 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). Convective cloud is that produced by the convection schemes in an atmosphere model." label="MassFractionOfConvectiveCloudLiquidWaterInAir" title="Mass Fraction of Convective Cloud Liquid Water in Air" uid="mass_fraction_of_convective_cloud_liquid_water_in_air" units="1"></item> 13986 13911 <item description="The average radius of a central region of clouds in tropical cyclones lacking well-defined eye features, which is computed by averaging the great circle distance in four cardinal directions. The radius in each direction is measured from the estimated storm center position to a warm point that exceeds a threshold brightness temperature at top of atmosphere limit. The threshold applied should be recorded in a coordinate variable having the standard_name of toa_brightness_temperature. A coordinate variable of radiation_wavelength, sensor_band_central_radiation_wavelength, or radiation_frequency may be specified to indicate that the brightness temperature applies at specific wavelengths or frequencies." label="RadiusOfTropicalCycloneCentralDenseOvercastRegion" title="Radius of Tropical Cyclone Central Dense Overcast Region" uid="radius_of_tropical_cyclone_central_dense_overcast_region" units="m"></item> 13987 <item description=" "Content" indicates a quantity per unit area." label="RootCarbonContent" title="Root Carbon Content" uid="root_carbon_content" units="kg m-2"></item>13912 <item description="alias::root_carbon_content" label="RootMassContentOfCarbon" title="Root Mass Content of Carbon [alias]" uid="root_carbon_content" units="kg m-2"></item> 13988 13913 <item description="Sea surface temperature is usually abbreviated as "SST". It is the temperature of sea water near the surface (including the part under sea-ice, if any). More specific terms, namely sea_surface_skin_temperature, sea_surface_subskin_temperature, and surface_termperature are available for the skin, subskin, and interface temperature. respectively. For the temperature of sea water at a particular depth or layer, a data variable of sea_water_temperature with a vertical coordinate axis should be used.'" label="SeaSurfaceTemperature" title="Sea Surface Temperature" uid="sea_surface_temperature" units="K"></item> 13989 13914 <item description=""x" indicates a vector component along the grid x-axis, positive with increasing x. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="XHeatFluxInSeaWaterDueToAdvection" title="X Heat Flux in Sea Water due to Advection" uid="x_heat_flux_in_sea_water_due_to_advection" units="W m-2"></item> … … 14007 13932 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Dry energy is the sum of dry static energy and kinetic energy. Dry static energy is the sum of enthalpy and potential energy (itself the sum of gravitational and centripetal potential energy). Enthalpy can be written either as (1) CpT, where Cp is heat capacity at constant pressure, T is absolute temperature, or (2) U+pV, where U is internal energy, p is pressure and V is volume." label="TendencyOfAtmosphereDryEnergyContent" title="Tendency of Atmosphere Dry Energy Content" uid="tendency_of_atmosphere_dry_energy_content" units="W m-2"></item> 14008 13933 <item description="alias::tendency_of_atmosphere_mass_content_of_black_carbon_dry_aerosol_due_to_dry_deposition" label="TendencyOfAtmosphereMassContentOfElementalCarbonDryAerosolParticlesDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Elemental Carbon Dry Aerosol Particles due to Dry Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_black_carbon_dry_aerosol_due_to_dry_deposition" units="kg m-2 s-1"></item> 13934 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="TendencyOfSpecificHumidityDueToBoundaryLayerMixing" title="Tendency of Specific Humidity due to Boundary Layer Mixing" uid="tendency_of_specific_humidity_due_to_boundary_layer_mixing" units="s-1"></item> 14009 13935 <item description="The quantity with standard name flood_water_duration_above_threshold is the time elapsed between the instant when the flood depth first rises above a given threshold until the time falls below the same threshold for the last time at a given point in space. If a threshold is supplied, it should be specified by associating a coordinate variable or scalar coordinate variable with the data variable and giving the coordinate variable a standard name of flood_water_thickness. The values of the coordinate variable are the threshold values for the corresponding subarrays of the data variable. If no threshold is specified, its value is taken to be zero. Flood water is water that covers land which is normally not covered by water." label="FloodWaterDurationAboveThreshold" title="Flood Water Duration Above Threshold" uid="flood_water_duration_above_threshold" units="s"></item> 14010 13936 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula of CFC114 is CClF2CClF2. The IUPAC name for CFC114 is 1,2-dichloro-1,1,2,2-tetrafluoro-ethane." label="MassFractionOfCfc114InAir" title="Mass Fraction of Cfc114 in Air" uid="mass_fraction_of_cfc114_in_air" units="1"></item> … … 14134 14060 <item description="Cox Salinity, S_C, is defined unitless as a mass fraction per mil (0/00) or "parts per thousand". S_C was the standard salinity measure from 1967 until Practical Salinity, S_P, was established with PSS-78 (1978). Chlorinity, Cl, is calculated from the conductivity of a sea water sample and since the work of the Joint Panel for Oceanographic Tables and Standards (JPOTS; 1966) is converted into Cox Salinity using S_C = 1.80655Cl. This type of salinity was called simply "salinity" from 1967 to 1978. Cox Salinity was replaced by Practical Salinity in 1978. Cox Salinity is converted to Practical Salinity following S_P = S_C, however the accuracy of this is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of the Practical Salinity Scale 1978 (PSS-78). Reference: Cox et al., 1967 doi: 10.1016/0011-7471(67)90006-X; Lyman, 1969 doi: 10.4319/lo.1969.14.6.0928; Wooster et al., 1969 doi: 10.4319/lo.1969.14.3.0437. There are standard names for the precisely defined salinity quantities sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_practical_salinity, S_P, sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_* and sea_water_reference_salinity. Salinity quantities that do not match any of the precise definitions should be given the more general standard name of sea_water_salinity." label="SeaWaterCoxSalinity" title="Sea Water Cox Salinity" uid="sea_water_cox_salinity" units="1e-3"></item> 14135 14061 <item description="Air temperature is the bulk temperature of the air, not the surface (skin) temperature. A spell is the number of consecutive days on which the condition X_below|above_threshold is satisified. A variable whose standard name has the form spell_length_of_days_with_X_below|above_threshold must have a coordinate variable or scalar coordinate variable with the a standard name of X to supply the threshold(s). It must have a climatological time variable, and a cell_method entry for within days which describes the processing of quantity X before the threshold is applied. A spell_length_of_days is an intensive quantity in time, and the cell_methods entry for over days can be any of the methods listed in Appendix E appropriate for intensive quantities e.g. "maximum", "minimum" or "mean"." label="SpellLengthOfDaysWithAirTemperatureBelowThreshold" title="Spell Length of Days With Air Temperature Below Threshold" uid="spell_length_of_days_with_air_temperature_below_threshold" units="day"></item> 14136 <item description="" Content" indicates a quantity per unit area. "Litter carbon" is dead plant material in or above the soil quantified as the mass of carbon which it contains. The surface called "surface" means the lower boundary of the atmosphere." label="SurfaceLitterCarbonContent" title="Surface Litter Carbon Content" uid="surface_litter_carbon_content" units="kg m-2"></item>14062 <item description=""tendency_of_X" means derivative of X with respect to time. The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for hydrogen bromide is HBr." label="TendencyOfAtmosphereMolesOfHydrogenBromide" title="Tendency of Atmosphere Moles of Hydrogen Bromide" uid="tendency_of_atmosphere_moles_of_hydrogen_bromide" units="mol s-1"></item> 14137 14063 <item description="alias::downwelling_spectral_spherical_irradiance_in_sea_water" label="DownwellingSphericalIrradiancePerUnitWavelengthInSeaWater" title="Downwelling Spherical Irradiance Per Unit Wavelength in Sea Water [alias]" uid="downwelling_spectral_spherical_irradiance_in_sea_water" units="W m-2 m-1"></item> 14138 14064 <item description="alias::mass_concentration_of_coarse_mode_ambient_aerosol_in_air" label="MassConcentrationOfCoarseModeAmbientAerosolParticlesInAir" title="Mass Concentration of Coarse Mode Ambient Aerosol Particles in Air [alias]" uid="mass_concentration_of_coarse_mode_ambient_aerosol_in_air" units="kg m-3"></item> 14139 14065 <item description="alias::net_primary_productivity_of_carbon_accumulated_in_roots" label="NetPrimaryProductivityOfBiomassExpressedAsCarbonAccumulatedInRoots" title="Net Primary Productivity of Biomass Expressed As Carbon Accumulated in Roots [alias]" uid="net_primary_productivity_of_carbon_accumulated_in_roots" units="kg m-2 s-1"></item> 14140 <item description=" "tendency_of_X" means derivative of X with respect to time. The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for hydrogen bromide is HBr." label="TendencyOfAtmosphereMolesOfHydrogenBromide" title="Tendency of Atmosphere Moles of Hydrogen Bromide" uid="tendency_of_atmosphere_moles_of_hydrogen_bromide" units="mol s-1"></item>14066 <item description="alias::surface_litter_carbon_content" label="SurfaceLitterMassContentOfCarbon" title="Surface Litter Mass Content of Carbon [alias]" uid="surface_litter_carbon_content" units="kg m-2"></item> 14141 14067 <item description="alias::tendency_of_moles_of_halon1202_in_atmosphere" label="TendencyOfAtmosphereMolesOfHalon1202" title="Tendency of Atmosphere Moles of Halon1202 [alias]" uid="tendency_of_moles_of_halon1202_in_atmosphere" units="mol s-1"></item> 14142 14068 <item description="alias::tendency_of_moles_of_hcc140a_in_troposphere" label="TendencyOfTroposphereMolesOfHcc140A" title="Tendency of Troposphere Moles of Hcc140A [alias]" uid="tendency_of_moles_of_hcc140a_in_troposphere" units="mol s-1"></item> … … 14181 14107 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for xylene is C6H4C2H6. In chemistry, xylene is a generic term for a group of three isomers of dimethylbenzene. The IUPAC names for the isomers are 1,2-dimethylbenzene, 1,3-dimethylbenzene and 1,4-dimethylbenzene. Xylene is an aromatic hydrocarbon. There are standard names that refer to aromatic_compounds as a group, as well as those for individual species." label="MoleConcentrationOfXyleneInAir" title="Mole Concentration of Xylene in Air" uid="mole_concentration_of_xylene_in_air" units="mol m-3"></item> 14182 14108 <item description=""x" indicates a vector component along the grid x-axis, positive with increasing x." label="OceanMassXTransport" title="Ocean Mass X Transport" uid="ocean_mass_x_transport" units="kg s-1"></item> 14109 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "C" means the element carbon and "13C" is the stable isotope "carbon-13", having six protons and seven neutrons." label="SurfaceDownwardMassFluxOf13CDioxideAbioticAnalogueExpressedAs13C" title="Surface Downward Mass Flux of 13C Dioxide Abiotic Analogue Expressed As 13C" uid="surface_downward_mass_flux_of_13C_dioxide_abiotic_analogue_expressed_as_13C" units="kg m-2 s-1"></item> 14183 14110 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for ethene is C2H4. Ethene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species. The "forest fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in forests. "Forest fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfEtheneDueToEmissionFromForestFires" title="Tendency of Atmosphere Mass Content of Ethene due to Emission from Forest Fires" uid="tendency_of_atmosphere_mass_content_of_ethene_due_to_emission_from_forest_fires" units="kg m-2 s-1"></item> 14184 14111 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for HCFC22 is CHClF2. The IUPAC name for HCFC22 is chloro-difluoro-methane." label="TendencyOfAtmosphereMassContentOfHcfc22DueToEmission" title="Tendency of Atmosphere Mass Content of Hcfc22 due to Emission" uid="tendency_of_atmosphere_mass_content_of_hcfc22_due_to_emission" units="kg m-2 s-1"></item> … … 14197 14124 <item description=""y" indicates a vector component along the grid y-axis, when this is not true latitude, positive with increasing y. Projection coordinates are distances in the x- and y-directions on a plane onto which the surface of the Earth has been projected according to a map projection. The relationship between the projection coordinates and latitude and longitude is described by the grid_mapping." label="ProjectionYCoordinate" title="Projection Y Coordinate" uid="projection_y_coordinate" units="m"></item> 14198 14125 <item description="The term sea_ice_extent means the total area of all grid cells in which the sea ice area fraction equals or exceeds a threshold, often chosen to be 15 per cent. The threshold must be specified by supplying a coordinate variable or scalar coordinate variable with the standard name of sea_ice_area_fraction. The horizontal domain over which sea ice extent is calculated is described by the associated coordinate variables and coordinate bounds or by a coordinate variable or scalar coordinate variable with the standard name of "region" supplied according to section 6.1.1 of the CF conventions." label="SeaIceExtent" title="Sea Ice Extent" uid="sea_ice_extent" units="m2"></item> 14199 <item description=" "Content" indicates a quantity per unit area. "Litter carbon" is dead plant material in or above the soil quantified as the mass of carbon which it contains. The surface called "surface" means the lower boundary of the atmosphere." label="SubsurfaceLitterCarbonContent" title="Subsurface Litter Carbon Content" uid="subsurface_litter_carbon_content" units="kg m-2"></item>14126 <item description="alias::subsurface_litter_carbon_content" label="SubsurfaceLitterMassContentOfCarbon" title="Subsurface Litter Mass Content of Carbon [alias]" uid="subsurface_litter_carbon_content" units="kg m-2"></item> 14200 14127 <item description="The surface called "surface" means the lower boundary of the atmosphere. "X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell." label="SurfaceSnowAreaFraction" title="Surface Snow Area Fraction" uid="surface_snow_area_fraction" units="1"></item> 14201 14128 <item description="The quantity with standard name temperature_at_top_of_ice_sheet_model is the upper boundary temperature that is used to force ice sheet models. It is the temperature at the interface between the ice sheet and the overlying medium which may be snow or the atmosphere. In all instances the temperature is that of the interface itself and not that of the medium above or below the interface." label="TemperatureAtTopOfIceSheetModel" title="Temperature At Top of Ice Sheet Model" uid="temperature_at_top_of_ice_sheet_model" units="K"></item> … … 14316 14243 <item description="alias::sea_surface_height" label="SeaSurfaceHeightAboveMeanSeaLevel" title="Sea Surface Height Above Mean Sea Level [alias]" uid="sea_surface_height" units="m"></item> 14317 14244 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Te" means the element "tellurium" and "125mTe" is the metastable state of the isotope "tellurium-125" with a half-life of 5.81e+01 days." label="SurfaceRadioactivityContentOf125Mte" title="Surface Radioactivity Content of 125Mte" uid="surface_radioactivity_content_of_125mTe" units="Bq m-2"></item> 14245 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="TendencyOfAirTemperatureDueToBoundaryLayerMixing" title="Tendency of Air Temperature due to Boundary Layer Mixing" uid="tendency_of_air_temperature_due_to_boundary_layer_mixing" units="K s-1"></item> 14318 14246 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Alcohols include all organic compounds with an alcoholic (OH) group. In standard names "alcohols" is the term used to describe the group of chemical species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "agricultural waste burning" sector comprises field burning of agricultural residues. "Agricultural waste burning" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 4F as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfAlcoholsDueToEmissionFromAgriculturalWasteBurning" title="Tendency of Atmosphere Mass Content of Alcohols due to Emission from Agricultural Waste Burning" uid="tendency_of_atmosphere_mass_content_of_alcohols_due_to_emission_from_agricultural_waste_burning" units="kg m-2 s-1"></item> 14319 14247 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for ethyne is HC2H. Ethyne is the IUPAC name for this species, which is also commonly known as acetylene. The "savanna and grassland fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in non-forested areas. It excludes field burning of agricultural residues. "Savanna and grassland fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfEthyneDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Ethyne due to Emission from Savanna And Grassland Fires" uid="tendency_of_atmosphere_mass_content_of_ethyne_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> … … 14376 14304 <item description=""Eastward" indicates a vector component which is positive when directed eastward (negative westward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) Wind shear is the derivative of wind with respect to height." label="EastwardWindShear" title="Eastward Wind Shear" uid="eastward_wind_shear" units="s-1"></item> 14377 14305 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for nitrous oxide is N2O." label="MassConcentrationOfNitrousOxideInAir" title="Mass Concentration of Nitrous Oxide in Air" uid="mass_concentration_of_nitrous_oxide_in_air" units="kg m-3"></item> 14306 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute." label="MassFluxOfNitrogenCompoundsExpressedAsNitrogenIntoSeaFromRivers" title="Mass Flux of Nitrogen Compounds Expressed As Nitrogen Into Sea from Rivers" uid="mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_into_sea_from_rivers" units="kg m-2 s-1"></item> 14378 14307 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. The chemical formula of water vapor is H2O." label="MoleFractionOfWaterVaporInAir" title="Mole Fraction of Water Vapor in Air" uid="mole_fraction_of_water_vapor_in_air" units="1"></item> 14308 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. It is assumed that all the respired carbon dioxide is emitted to the atmosphere. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespiration" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration" units="kg m-2 s-1"></item> 14309 <item description="alias::tendency_of_mass_concentration_of_black_carbon_dry_aerosol_in_air_due_to_emission_from_aviation" label="TendencyOfMassConcentrationOfElementalCarbonDryAerosolParticlesInAirDueToEmissionFromAviation" title="Tendency of Mass Concentration of Elemental Carbon Dry Aerosol Particles in Air due to Emission from Aviation [alias]" uid="tendency_of_mass_concentration_of_black_carbon_dry_aerosol_in_air_due_to_emission_from_aviation" units="kg m-3 s-1"></item> 14379 14310 <item description=""Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection." label="NorthwardOceanFreshwaterTransportDueToParameterizedEddyAdvection" title="Northward Ocean Freshwater Transport due to Parameterized Eddy Advection" uid="northward_ocean_freshwater_transport_due_to_parameterized_eddy_advection" units="kg s-1"></item> 14380 14311 <item description="Standard names for platform describe the motion and orientation of the vehicle from which observations are made e.g. aeroplane, ship or satellite. Platform azimuth angle is the horizontal angle between the line of sight from the observation point to the platform and a reference direction at the observation point, which is often due north. The angle is measured clockwise positive, starting from the reference direction. A comment attribute should be added to a data variable with the standard name platform_azimuth_angle to specify the reference direction. A standard name also exists for sensor_azimuth_angle. For some viewing geometries the sensor and the platform cannot be assumed to be close enough to neglect the difference in calculated azimuth angle." label="PlatformAzimuthAngle" title="Platform Azimuth Angle" uid="platform_azimuth_angle" units="degree"></item> 14381 14312 <item description=""moisture" means water in all phases contained in soil. "Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. The field capacity of soil is the maximum content of water it can retain against gravitational drainage." label="SoilMoistureContentAtFieldCapacity" title="Soil Moisture Content At Field Capacity" uid="soil_moisture_content_at_field_capacity" units="kg m-2"></item> 14382 <item description="alias::tendency_of_mass_concentration_of_black_carbon_dry_aerosol_in_air_due_to_emission_from_aviation" label="TendencyOfMassConcentrationOfElementalCarbonDryAerosolParticlesInAirDueToEmissionFromAviation" title="Tendency of Mass Concentration of Elemental Carbon Dry Aerosol Particles in Air due to Emission from Aviation [alias]" uid="tendency_of_mass_concentration_of_black_carbon_dry_aerosol_in_air_due_to_emission_from_aviation" units="kg m-3 s-1"></item>14383 14313 <item description="See Appendix D of the CF convention for information about dimensionless vertical coordinates." label="AtmosphereSigmaCoordinate" title="Atmosphere Sigma Coordinate" uid="atmosphere_sigma_coordinate" units="1"></item> 14384 14314 <item description=""Content" indicates a quantity per unit area. "Litter" is dead plant material in or above the soil. "C" means the element carbon and "13C" is the stable isotope "carbon-13", having six protons and seven neutrons." label="LitterMassContentOf13C" title="Litter Mass Content of 13C" uid="litter_mass_content_of_13C" units="kg m-2"></item> … … 14443 14373 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection." label="OceanMeridionalOverturningMassStreamfunctionDueToParameterizedMesoscaleEddyAdvection" title="Ocean Meridional Overturning Mass Streamfunction due to Parameterized Mesoscale Eddy Advection" uid="ocean_meridional_overturning_mass_streamfunction_due_to_parameterized_mesoscale_eddy_advection" units="kg s-1"></item> 14444 14374 <item description="'Mass fraction' is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The Bergeron-Findeisen process is the conversion of cloud liquid water to cloud ice arising from the fact that water vapor has a lower equilibrium vapor pressure with respect to ice than it has with respect to liquid water at the same subfreezing temperature. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudLiquidWaterInAirDueToBergeronFindeisenProcessToCloudIce" title="Tendency of Mass Fraction of Stratiform Cloud Liquid Water in Air due to Bergeron Findeisen Process to Cloud Ice" uid="tendency_of_mass_fraction_of_stratiform_cloud_liquid_water_in_air_due_to_bergeron_findeisen_process_to_cloud_ice" units="s-1"></item> 14375 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. On land, "nitrogen fixation" means the uptake of nitrogen gas directly from the atmosphere. The representation of fixed nitrogen is model dependent, with the nitrogen entering either vegetation, soil or both. "Vegetation" means any living plants e.g. trees, shrubs, grass. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="TendencyOfSoilAndVegetationMassContentOfNitrogenCompoundsExpressedAsNitrogenDueToFixation" title="Tendency of Soil And Vegetation Mass Content of Nitrogen Compounds Expressed As Nitrogen due to Fixation" uid="tendency_of_soil_and_vegetation_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_fixation" units="kg m-2 s-1"></item> 14445 14376 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pr" means the element "praseodymium" and "144Pr" is the isotope "praseodymium-144" with a half-life of 1.20e-02 days." label="SurfaceRadioactivityContentOf144Pr" title="Surface Radioactivity Content of 144Pr" uid="surface_radioactivity_content_of_144Pr" units="Bq m-2"></item> 14446 14377 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. In organic chemistry, a ketone is a compound with the structure RC(=O)R', where R and R' can be a variety of atoms and groups of atoms. It features a carbonyl group (C=O) bonded to two other carbon atoms. Acetone is the simplest example of a ketone. In standard names "ketones" is the term used to describe the group of ketone species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "solvent production and use" sector comprises industrial processes related to the consumption of halocarbons, SF6, solvent and other product use. "Solvent production and use" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 2F and 3 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfKetonesDueToEmissionFromSolventProductionAndUse" title="Tendency of Atmosphere Mass Content of Ketones due to Emission from Solvent Production And Use" uid="tendency_of_atmosphere_mass_content_of_ketones_due_to_emission_from_solvent_production_and_use" units="kg m-2 s-1"></item> … … 14452 14383 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "I" means the element "iodine" and "134mI" is the metastable state of the isotope "iodine-134" with a half-life of 2.50e-03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf134MiInAir" title="Integral Wrt Time of Radioactivity Concentration of 134Mi in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_134mI_in_air" units="Bq s m-3"></item> 14453 14384 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Kr" means the element "krypton" and "89Kr" is the isotope "krypton-89" with a half-life of 2.20e-03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf89KrInAir" title="Integral Wrt Time of Radioactivity Concentration of 89Kr in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_89Kr_in_air" units="Bq s m-3"></item> 14385 <item description=""Miscellaneous living matter" means all those parts of plants that are not leaf, stem, root or other separately named components. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. "Productivity" means production per unit area." label="NetPrimaryProductivityOfBiomassExpressedAsCarbonAccumulatedInMiscellaneousLivingMatter" title="Net Primary Productivity of Biomass Expressed As Carbon Accumulated in Miscellaneous Living Matter" uid="net_primary_productivity_of_biomass_expressed_as_carbon_accumulated_in_miscellaneous_living_matter" units="kg m-2 s-1"></item> 14454 14386 <item description=""Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. "Productivity" means production per unit area. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="NetPrimaryProductivityOfBiomassExpressedAsCarbon" title="Net Primary Productivity of Biomass Expressed As Carbon" uid="net_primary_productivity_of_biomass_expressed_as_carbon" units="kg m-2 s-1"></item> 14455 14387 <item description="" label="SnowGrainSize" title="Snow Grain Size" uid="snow_grain_size" units="m"></item> 14388 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including "content_of_soil_layer" are used. The chemical formula for the nitrate anion is NO3-. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The quantity with standard name soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen is the sum of the quantities with standard names soil_mass_content_of_inorganic_ammonium_expressed_as_nitrogen and soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen." label="SoilMassContentOfInorganicNitrateExpressedAsNitrogen" title="Soil Mass Content of Inorganic Nitrate Expressed As Nitrogen" uid="soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen" units="kg m-2"></item> 14456 14389 <item description="Soil albedo is the albedo of the soil surface assuming no snow." label="SoilAlbedo" title="Soil Albedo" uid="soil_albedo" units="1"></item> 14457 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including "content_of_soil_layer" are used. The chemical formula for the nitrate anion is NO3-. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The quantity with standard name soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen is the sum of the quantities with standard names soil_mass_content_of_inorganic_ammonium_expressed_as_nitrogen and soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen." label="SoilMassContentOfInorganicNitrateExpressedAsNitrogen" title="Soil Mass Content of Inorganic Nitrate Expressed As Nitrogen" uid="soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen" units="kg m-2"></item>14458 14390 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Bi" means the element "bismuth" and "214Bi" is the isotope "bismuth-214" with a half-life of 1.37e-02 days." label="SurfaceRadioactivityContentOf214Bi" title="Surface Radioactivity Content of 214Bi" uid="surface_radioactivity_content_of_214Bi" units="Bq m-2"></item> 14459 14391 <item description="The term "anomaly" means difference from climatology. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation." label="AirPressureAnomaly" title="Air Pressure Anomaly" uid="air_pressure_anomaly" units="Pa"></item> … … 14462 14394 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ce" means the element "cerium" and "142Ce" is the isotope "cerium-142" with a half-life of 1.82e+19 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf142CeInAir" title="Integral Wrt Time of Radioactivity Concentration of 142Ce in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_142Ce_in_air" units="Bq s m-3"></item> 14463 14395 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "La" means the element "lanthanum" and "143La" is the isotope "lanthanum-143" with a half-life of 9.72e-03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf143LaInAir" title="Integral Wrt Time of Radioactivity Concentration of 143La in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_143La_in_air" units="Bq s m-3"></item> 14396 <item description=""Content" indicates a quantity per unit area." label="LeafMassContentOfNitrogen" title="Leaf Mass Content of Nitrogen" uid="leaf_mass_content_of_nitrogen" units="kg m-2"></item> 14464 14397 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "U" means the element "uranium" and "236U" is the isotope "uranium-236" with a half-life of 8.73e+09 days." label="RadioactivityConcentrationOf236UInAir" title="Radioactivity Concentration of 236U in Air" uid="radioactivity_concentration_of_236U_in_air" units="Bq m-3"></item> 14465 14398 <item description="The specific heat capacity of sea water, Cp(ocean), is used in ocean models to convert between model prognostic temperature (potential or conservative temperature) and model heat content." label="SpecificHeatCapacityOfSeaWater" title="Specific Heat Capacity of Sea Water" uid="specific_heat_capacity_of_sea_water" units="J kg-1 K-1"></item> 14466 14399 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Br" means the element "bromine" and "83Br" is the isotope "bromine-83" with a half-life of 1.00e-01 days." label="SurfaceRadioactivityContentOf83Br" title="Surface Radioactivity Content of 83Br" uid="surface_radioactivity_content_of_83Br" units="Bq m-2"></item> 14467 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Amount" means mass per unit area. Surface amount refers to the amount on the ground, excluding that on the plant or vegetation canopy." label="SurfaceSnowAmount" title="Surface Snow Amount" uid="surface_snow_amount" units="kg m-2"></item>14468 14400 <item description=""tendency_of_X" means derivative of X with respect to time. Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for nitrogen dioxide is NO2. The "aviation" sector includes fuel combustion activities related to civil aviation. "Aviation" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 1A3a as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfMassConcentrationOfNitrogenDioxideInAirDueToEmissionFromAviation" title="Tendency of Mass Concentration of Nitrogen Dioxide in Air due to Emission from Aviation" uid="tendency_of_mass_concentration_of_nitrogen_dioxide_in_air_due_to_emission_from_aviation" units="kg m-3 s-1"></item> 14469 14401 <item description="alias::integral_of_toa_net_downward_shortwave_flux_wrt_time" label="IntegralWrtTimeOfToaNetDownwardShortwaveFlux" title="Integral Wrt Time of Toa Net Downward Shortwave Flux [alias]" uid="integral_of_toa_net_downward_shortwave_flux_wrt_time" units="W s m-2"></item> 14402 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Amount" means mass per unit area. Surface amount refers to the amount on the ground, excluding that on the plant or vegetation canopy." label="SurfaceSnowAmount" title="Surface Snow Amount" uid="surface_snow_amount" units="kg m-2"></item> 14470 14403 <item description=""Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. "X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. Cloud area fraction is also called "cloud amount" and "cloud cover"." label="CloudAreaFractionInAtmosphereLayer" title="Cloud Area Fraction in Atmosphere Layer" uid="cloud_area_fraction_in_atmosphere_layer" units="1"></item> 14471 14404 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Nb" means the element "niobium" and "97Nb" is the isotope "niobium-97" with a half-life of 5.11e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf97NbInAir" title="Integral Wrt Time of Radioactivity Concentration of 97Nb in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_97Nb_in_air" units="Bq s m-3"></item> … … 14475 14408 <item description="sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the concentration of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]). In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored." label="SeaWaterPhAbioticAnalogueReportedOnTotalScale" title="Sea Water Ph Abiotic Analogue Reported on Total Scale" uid="sea_water_ph_abiotic_analogue_reported_on_total_scale" units="1"></item> 14476 14409 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition" is the sum of turbulent deposition and gravitational settling. The chemical formula for hydrogen cyanide is HCN." label="TendencyOfAtmosphereMassContentOfHydrogenCyanideDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Hydrogen Cyanide due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_hydrogen_cyanide_due_to_dry_deposition" units="kg m-2 s-1"></item> 14477 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The tendency in ice mass due to calving is the spatial integral of the quantity named land_ice_specific_mass_flux_due_to_calving. The horizontal domain over which the quantity is calculated is described by the associated coordinate variables and coordinate bounds or by a coordinate variable or scalar coordinate variable with the standard name of "region" supplied according to section 6.1.1 of the CF conventions." label="TendencyOfLandIceMassDueToCalving" title="Tendency of Land Ice Mass due to Calving" uid="tendency_of_land_ice_mass_due_to_calving" units="kg s-1"></item>14410 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The tendency in ice mass due to calving is the spatial integral of the quantity named land_ice_specific_mass_flux_due_to_calving. The geographical extent over which the quantity is calculated is defined by the horizontal coordinates and any associated coordinate bounds or by a string valued auxiliary coordinate variable with a standard name of "region"." label="TendencyOfLandIceMassDueToCalving" title="Tendency of Land Ice Mass due to Calving" uid="tendency_of_land_ice_mass_due_to_calving" units="kg s-1"></item> 14478 14411 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for nitrous acid is HNO2." label="AtmosphereMassContentOfNitrousAcid" title="Atmosphere Mass Content of Nitrous Acid" uid="atmosphere_mass_content_of_nitrous_acid" units="kg m-2"></item> 14479 14412 <item description=""X_area" means the horizontal area occupied by X within the grid cell. The extent of an individual grid cell is defined by the horizontal coordinates and any associated coordinate bounds or by a string valued auxiliary coordinate variable with a standard name of "region". "Grounded ice sheet" indicates where the ice sheet rests over bedrock and is thus grounded. It excludes ice-caps, glaciers and floating ice shelves." label="GroundedIceSheetArea" title="Grounded Ice Sheet Area" uid="grounded_ice_sheet_area" units="m2"></item> … … 14509 14442 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula of CFC113 is CCl2FCClF2. The IUPAC name for CFC113 is 1,1,2-trichloro-1,2,2-trifluoro-ethane." label="MoleConcentrationOfCfc113InAir" title="Mole Concentration of Cfc113 in Air" uid="mole_concentration_of_cfc113_in_air" units="mol m-3"></item> 14510 14443 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "I" means the element "iodine" and "134mI" is the metastable state of the isotope "iodine-134" with a half-life of 2.50e-03 days." label="RadioactivityConcentrationOf134MiInAir" title="Radioactivity Concentration of 134Mi in Air" uid="radioactivity_concentration_of_134mI_in_air" units="Bq m-3"></item> 14444 <item description=""Soil carbon" is the organic matter present in soil quantified by the mass of carbon it contains. Soil carbon is returned to the atmosphere as the organic matter decays. Each modelled soil carbon pool has a characteristic turnover time, which is modified by environmental conditions such as temperature and moisture so that the turnover time varies in space and time. The quantity with standard name soil_pool_carbon_decay_rate is defined as 1/(turnover time). The data variable should be accompanied by a string valued coordinate variable or scalar coordinate variable with standard name soil_pool." label="SoilPoolCarbonDecayRate" title="Soil Pool Carbon Decay Rate" uid="soil_pool_carbon_decay_rate" units="s-1"></item> 14511 14445 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ag" means the element "silver" and "111Ag" is the isotope "silver-111" with a half-life of 7.50e+00 days." label="SurfaceRadioactivityContentOf111Ag" title="Surface Radioactivity Content of 111Ag" uid="surface_radioactivity_content_of_111Ag" units="Bq m-2"></item> 14512 14446 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Te" means the element "tellurium" and "133mTe" is the metastable state of the isotope "tellurium-133" with a half-life of 3.84e-02 days." label="SurfaceRadioactivityContentOf133Mte" title="Surface Radioactivity Content of 133Mte" uid="surface_radioactivity_content_of_133mTe" units="Bq m-2"></item> 14513 14447 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula of CFC11 is CFCl3. The IUPAC name fof CFC11 is trichloro-fluoro-methane." label="TendencyOfAtmosphereMassContentOfCfc11DueToEmission" title="Tendency of Atmosphere Mass Content of Cfc11 due to Emission" uid="tendency_of_atmosphere_mass_content_of_cfc11_due_to_emission" units="kg m-2 s-1"></item> 14514 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Atmosphere water vapor content is sometimes referred to as "precipitable water", although this term does not imply the water could all be precipitated." label="TendencyOfAtmosphereMassContentOfWaterVaporDueToTurbulence" title="Tendency of Atmosphere Mass Content of Water Vapor due to Turbulence" uid="tendency_of_atmosphere_mass_content_of_water_vapor_due_to_turbulence" units="kg m-2 s-1"></item>14515 14448 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Evaporation is the conversion of liquid or solid into vapor. (The conversion of solid alone into vapor is called "sublimation".) In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToEvaporationOfMeltingIce" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Evaporation of Melting Ice" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_evaporation_of_melting_ice" units="s-1"></item> 14516 14449 <item description=""tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990." label="TendencyOfSeaWaterTemperatureDueToAdvection" title="Tendency of Sea Water Temperature due to Advection" uid="tendency_of_sea_water_temperature_due_to_advection" units="K s-1"></item> 14450 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Atmosphere water vapor content is sometimes referred to as "precipitable water", although this term does not imply the water could all be precipitated." label="TendencyOfAtmosphereMassContentOfWaterVaporDueToTurbulence" title="Tendency of Atmosphere Mass Content of Water Vapor due to Turbulence" uid="tendency_of_atmosphere_mass_content_of_water_vapor_due_to_turbulence" units="kg m-2 s-1"></item> 14517 14451 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol. "Dry aerosol particles" means aerosol particles without any water uptake. Chemically, "elemental carbon" is the carbonaceous fraction of particulate matter that is thermally stable in an inert atmosphere to high temperatures near 4000K and can only be gasified by oxidation starting at temperatures above 340 C. It is assumed to be inert and non-volatile under atmospheric conditions and insoluble in any solvent (Ogren and Charlson, 1983)." label="AtmosphereMassContentOfElementalCarbonDryAerosolParticles" title="Atmosphere Mass Content of Elemental Carbon Dry Aerosol Particles" uid="atmosphere_mass_content_of_elemental_carbon_dry_aerosol_particles" units="kg m-2"></item> 14518 14452 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for halon1301 is CBrF3. The IUPAC name for halon1301 is bromo-trifluoro-methane." label="AtmosphereMolesOfHalon1301" title="Atmosphere Moles of Halon1301" uid="atmosphere_moles_of_halon1301" units="mol"></item> … … 14537 14471 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula of carbon monoxide is CO." label="AtmosphereMassContentOfCarbonMonoxide" title="Atmosphere Mass Content of Carbon Monoxide" uid="atmosphere_mass_content_of_carbon_monoxide" units="kg m-2"></item> 14538 14472 <item description="The atmosphere_stability_showalter_index is an index used to determine convective and thunderstorm potential and is often referred to as simply the showalter index. The index is defined as the temperature difference between a parcel of air lifted from 850 to 500 hPa (wet adiabatically) and the ambient air temperature at 500 hPa. " label="AtmosphereStabilityShowalterIndex" title="Atmosphere Stability Showalter Index" uid="atmosphere_stability_showalter_index" units="K"></item> 14539 <item description="alias::dissipation_in_atmosphere_boundary_layer" label="KineticEnergyDissipationInAtmosphereBoundaryLayer" title="Kinetic Energy Dissipation in Atmosphere Boundary Layer [alias]" uid="dissipation_in_atmosphere_boundary_layer" units="W m-2"></item>14540 14473 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Tl" means the element "thallium" and "206Tl" is the isotope "thallium-206" with a half-life of 2.91e-03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf206TlInAir" title="Integral Wrt Time of Radioactivity Concentration of 206Tl in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_206Tl_in_air" units="Bq s m-3"></item> 14541 14474 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Cm" means the element "curium" and "245Cm" is the isotope "curium-245" with a half-life of 3.40e+06 days." label="RadioactivityConcentrationOf245CmInAir" title="Radioactivity Concentration of 245Cm in Air" uid="radioactivity_concentration_of_245Cm_in_air" units="Bq m-3"></item> 14542 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Carbon14 is a radioactive isotope of carbon having six protons and eight neutrons, used in radiocarbon dating." label="SurfaceDownwardMassFluxOfCarbon14DioxideAbioticAnalogueExpressedAsCarbon" title="Surface Downward Mass Flux of Carbon14 Dioxide Abiotic Analogue Expressed As Carbon" uid="surface_downward_mass_flux_of_carbon14_dioxide_abiotic_analogue_expressed_as_carbon" units="kg m-2 s-1"></item>14543 14475 <item description="The surface called "surface" means the lower boundary of the atmosphere." label="SurfaceRoughnessLengthForHeatInAir" title="Surface Roughness Length For Heat in Air" uid="surface_roughness_length_for_heat_in_air" units="m"></item> 14476 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. A variable with the standard name tendency_of_air_temperature_due_to_stratiform_cloud_and_precipitation should contain net latent heating effects of all processes which convert stratiform clouds and precipitation between water vapour, liquid or ice phases. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes)." label="TendencyOfAirTemperatureDueToStratiformCloudAndPrecipitation" title="Tendency of Air Temperature due to Stratiform Cloud And Precipitation" uid="tendency_of_air_temperature_due_to_stratiform_cloud_and_precipitation" units="K s-1"></item> 14544 14477 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "wet_deposition" means deposition by precipitation. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. Usually, particle bound and gaseous nitrogen compounds, such as atomic nitrogen (N), nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), nitrate (NO3-), peroxynitric acid (HNO4), ammon1a (NH3), ammonium (NH4+), bromine nitrate (BrONO2), chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)) are included. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute." label="TendencyOfAtmosphereMassContentOfNitrogenCompoundsExpressedAsNitrogenDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Nitrogen Compounds Expressed As Nitrogen due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_wet_deposition" units="kg m-2 s-1"></item> 14545 14478 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. "Pm10 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Wet deposition" means deposition by precipitation. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfAtmosphereMassContentOfPm10SeaSaltDryAerosolParticlesDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Pm10 Sea Salt Dry Aerosol Particles due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_pm10_sea_salt_dry_aerosol_particles_due_to_wet_deposition" units="kg m-2 s-1"></item> 14546 14479 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for propene is C3H6. Propene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species. The "agricultural waste burning" sector comprises field burning of agricultural residues. "Agricultural waste burning" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 4F as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfPropeneDueToEmissionFromAgriculturalWasteBurning" title="Tendency of Atmosphere Mass Content of Propene due to Emission from Agricultural Waste Burning" uid="tendency_of_atmosphere_mass_content_of_propene_due_to_emission_from_agricultural_waste_burning" units="kg m-2 s-1"></item> 14480 <item description="alias::dissipation_in_atmosphere_boundary_layer" label="KineticEnergyDissipationInAtmosphereBoundaryLayer" title="Kinetic Energy Dissipation in Atmosphere Boundary Layer [alias]" uid="dissipation_in_atmosphere_boundary_layer" units="W m-2"></item> 14481 <item description="alias::surface_downward_mass_flux_of_carbon14_dioxide_abiotic_analogue_expressed_as_carbon" label="SurfaceDownwardMassFluxOf14CDioxideAbioticAnalogueExpressedAsCarbon" title="Surface Downward Mass Flux of 14C Dioxide Abiotic Analogue Expressed As Carbon [alias]" uid="surface_downward_mass_flux_of_carbon14_dioxide_abiotic_analogue_expressed_as_carbon" units="kg m-2 s-1"></item> 14547 14482 <item description="alias::tendency_of_atmosphere_water_vapor_content_due_to_advection" label="TendencyOfAtmosphereMassContentOfWaterVaporDueToAdvection" title="Tendency of Atmosphere Mass Content of Water Vapor due to Advection [alias]" uid="tendency_of_atmosphere_water_vapor_content_due_to_advection" units="kg m-2 s-1"></item> 14483 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudLiquidWaterInAirDueToAdvection" title="Tendency of Mass Fraction of Stratiform Cloud Liquid Water in Air due to Advection" uid="tendency_of_mass_fraction_of_stratiform_cloud_liquid_water_in_air_due_to_advection" units="s-1"></item> 14548 14484 <item description=""Amount" means mass per unit area." label="TranspirationAmount" title="Transpiration Amount" uid="transpiration_amount" units="kg m-2"></item> 14549 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudLiquidWaterInAirDueToAdvection" title="Tendency of Mass Fraction of Stratiform Cloud Liquid Water in Air due to Advection" uid="tendency_of_mass_fraction_of_stratiform_cloud_liquid_water_in_air_due_to_advection" units="s-1"></item>14550 14485 <item description="Mole fraction is used in the construction "mole_fraction_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The construction "dry_atmosphere_mole_fraction" means that the quantity refers to the whole atmospheric column and is calculated as the total number of particles of X in the column divided by the number of dry air particles in the same column, i.e. the effect of water vapor is excluded. For localized values within the atmospheric medium, standard names including "in_air" are used. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species. The chemical formula for methane is CH4." label="DryAtmosphereMoleFractionOfMethane" title="Dry Atmosphere Mole Fraction of Methane" uid="dry_atmosphere_mole_fraction_of_methane" units="1"></item> 14551 14486 <item description=""Calcareous phytoplankton" are phytoplankton that produce calcite. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability." label="NitrogenGrowthLimitationOfCalcareousPhytoplankton" title="Nitrogen Growth Limitation of Calcareous Phytoplankton" uid="nitrogen_growth_limitation_of_calcareous_phytoplankton" units="1"></item> 14487 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used." label="SoilMassContentOfCarbon" title="Soil Mass Content of Carbon" uid="soil_mass_content_of_carbon" units="kg m-2"></item> 14552 14488 <item description=""Content" indicates a quantity per unit area. The "stratosphere content" of a quantity refers to the vertical integral from the tropopause to the stratopause. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for nitrogen_dioxide is NO2." label="StratosphereMoleContentOfNitrogenDioxide" title="Stratosphere Mole Content of Nitrogen Dioxide" uid="stratosphere_mole_content_of_nitrogen_dioxide" units="mol m-2"></item> 14553 14489 <item description="The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Scattering of radiation is its deflection from its incident path without loss of energy. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeding pi/2 radians. A scattering_angle should not be specified with this quantity." label="SurfaceBackwardsScatteringCoefficientOfRadarWave" title="Surface Backwards Scattering Coefficient of Radar Wave" uid="surface_backwards_scattering_coefficient_of_radar_wave" units="1"></item> 14490 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for butane is C4H10. Butane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species. The "land transport" sector includes fuel combustion activities related to road transportation, railways and other transportation. "Land transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A3b, 1A3c and 1A3e as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfButaneDueToEmissionFromLandTransport" title="Tendency of Atmosphere Mass Content of Butane due to Emission from Land Transport" uid="tendency_of_atmosphere_mass_content_of_butane_due_to_emission_from_land_transport" units="kg m-2 s-1"></item> 14491 <item description=""Volume fraction" is used in the construction volume_fraction_of_X_in_Y, where X is a material constituent of Y." label="VolumeFractionOfOxygenInSeaWater" title="Volume Fraction of Oxygen in Sea Water" uid="volume_fraction_of_oxygen_in_sea_water" units="1"></item> 14554 14492 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ra" means the element "radium" and "224Ra" is the isotope "radium-224" with a half-life of 3.65e+00 days." label="SurfaceRadioactivityContentOf224Ra" title="Surface Radioactivity Content of 224Ra" uid="surface_radioactivity_content_of_224Ra" units="Bq m-2"></item> 14555 <item description=""Volume fraction" is used in the construction volume_fraction_of_X_in_Y, where X is a material constituent of Y." label="VolumeFractionOfOxygenInSeaWater" title="Volume Fraction of Oxygen in Sea Water" uid="volume_fraction_of_oxygen_in_sea_water" units="1"></item>14556 14493 <item description="alias::surface_temperature_where_land" label="SurfaceTemperature" title="Surface Temperature [alias]" uid="surface_temperature_where_land" units="K"></item> 14557 14494 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition"is the sum of turbulent deposition and gravitational settling." label="TendencyOfAtmosphereMassContentOfAlphaHexachlorocyclohexaneDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Alpha Hexachlorocyclohexane due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_alpha_hexachlorocyclohexane_due_to_dry_deposition" units="kg m-2 s-1"></item> 14558 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for butane is C4H10. Butane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species. The "land transport" sector includes fuel combustion activities related to road transportation, railways and other transportation. "Land transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A3b, 1A3c and 1A3e as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfButaneDueToEmissionFromLandTransport" title="Tendency of Atmosphere Mass Content of Butane due to Emission from Land Transport" uid="tendency_of_atmosphere_mass_content_of_butane_due_to_emission_from_land_transport" units="kg m-2 s-1"></item>14559 14495 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Ethers are a class of organic compounds that contain an ether group - an oxygen atom connected to two alkyl or aryl groups - of general formula R-O-R. In standard names "ethers" is the term used to describe the group of ether species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "residential and commercial combustion" sector comprises fuel combustion activities related to the commercial/institutional sector, the residential sector and the agriculture/forestry/fishing sector. It may also include any not-classified or "other" combustion, which is commonly included in the inventory data. "Residential and commercial combustion" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A4a, 1A4b and 1A4c as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfEthersDueToEmissionFromResidentialAndCommercialCombustion" title="Tendency of Atmosphere Mass Content of Ethers due to Emission from Residential And Commercial Combustion" uid="tendency_of_atmosphere_mass_content_of_ethers_due_to_emission_from_residential_and_commercial_combustion" units="kg m-2 s-1"></item> 14560 14496 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "Nox" means a combination of two radical species containing nitrogen and oxygen: NO+NO2. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The "waste treatment and disposal" sector comprises solid waste disposal on land, wastewater handling, waste incineration and other waste disposal. "Waste treatment and disposal" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 6A, 6B, 6C and 6D as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfNoxExpressedAsNitrogenMonoxideDueToEmissionFromWasteTreatmentAndDisposal" title="Tendency of Atmosphere Mass Content of Nox Expressed As Nitrogen Monoxide due to Emission from Waste Treatment And Disposal" uid="tendency_of_atmosphere_mass_content_of_nox_expressed_as_nitrogen_monoxide_due_to_emission_from_waste_treatment_and_disposal" units="kg m-2 s-1"></item> … … 14586 14522 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Ethers are a class of organic compounds that contain an ether group - an oxygen atom connected to two alkyl or aryl groups - of general formula R-O-R. In standard names "ethers" is the term used to describe the group of ether species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "agricultural production" sector comprises the agricultural processes of enteric fermentation, manure management, rice cultivation, agricultural soils and other. It may also include any not-classified or "other" combustion, which is commonly included in agriculture-related inventory data. "Agricultural production" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 4A, 4B, 4C, 4D and 4G as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfEthersDueToEmissionFromAgriculturalProduction" title="Tendency of Atmosphere Mass Content of Ethers due to Emission from Agricultural Production" uid="tendency_of_atmosphere_mass_content_of_ethers_due_to_emission_from_agricultural_production" units="kg m-2 s-1"></item> 14587 14523 <item description="alias::x_sea_water_velocity" label="SeaWaterXVelocity" title="Sea Water X Velocity [alias]" uid="x_sea_water_velocity" units="m s-1"></item> 14588 <item description="alias::carbon_content_of_products_of_anthropogenic_land_use_change" label="Carbon ContentOfForestryAndAgriculturalProducts" title="CarbonContent of Forestry And Agricultural Products [alias]" uid="carbon_content_of_products_of_anthropogenic_land_use_change" units="kg m-2"></item>14524 <item description="alias::carbon_content_of_products_of_anthropogenic_land_use_change" label="CarbonMassContentOfForestryAndAgriculturalProducts" title="Carbon Mass Content of Forestry And Agricultural Products [alias]" uid="carbon_content_of_products_of_anthropogenic_land_use_change" units="kg m-2"></item> 14589 14525 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Zr" means the element "zirconium" and "95Zr" is the isotope "zirconium-95" with a half-life of 6.52e+01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf95ZrInAir" title="Integral Wrt Time of Radioactivity Concentration of 95Zr in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_95Zr_in_air" units="Bq s m-3"></item> 14590 14526 <item description="alias::longwave_radiance" label="IsotropicLongwaveRadianceInAir" title="Isotropic Longwave Radiance in Air [alias]" uid="longwave_radiance" units="W m-2 sr-1"></item> … … 14650 14586 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "C" means the element "carbon" and "11C" is the isotope "carbon-11" with a half-life of 1.41e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf11CInAir" title="Integral Wrt Time of Radioactivity Concentration of 11C in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_11C_in_air" units="Bq s m-3"></item> 14651 14587 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'.The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Standard names also exist for the mole concentration of a number of components that make up the total zooplankton population, such as mesozooplankton, microzooplankton andmiscellaneous zooplankton." label="MoleConcentrationOfZooplanktonExpressedAsCarbonInSeaWater" title="Mole Concentration of Zooplankton Expressed As Carbon in Sea Water" uid="mole_concentration_of_zooplankton_expressed_as_carbon_in_sea_water" units="mol m-3"></item> 14652 <item description=""Respiration carbon" refers to the rate at which biomass is respired expressed as the mass of carbon which it contains. Plant respiration is the sum of respiration by parts of plants both above and below the soil. Plants which photosynthesise are autotrophs i.e. "producers" of the biomass which they respire from inorganic precursors using sunlight for energy. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="PlantRespirationCarbonFlux" title="Plant Respiration Carbon Flux" uid="plant_respiration_carbon_flux" units="kg m-2 s-1"></item> 14588 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. Examples of "forestry and agricultural products" are paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock. Models that simulate land use changes have one or more pools of nitrogen that represent these products in order to conserve nitrogen and allow its eventual release into the atmosphere, for example, when the products decompose in landfill sites. "Anthropogenic" means influenced, caused, or created by human activity. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction." label="NitrogenMassFluxIntoForestryAndAgriculturalProductsDueToAnthropogenicLandUseOrLandCoverChange" title="Nitrogen Mass Flux Into Forestry And Agricultural Products due to Anthropogenic Land Use Or Land Cover Change" uid="nitrogen_mass_flux_into_forestry_and_agricultural_products_due_to_anthropogenic_land_use_or_land_cover_change" units="kg m-2 s-1"></item> 14589 <item description="alias::plant_respiration_carbon_flux" label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespiration" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration [alias]" uid="plant_respiration_carbon_flux" units="kg m-2 s-1"></item> 14653 14590 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ag" means the element "silver" and "111mAg" is the metastable state of the isotope "silver-111" with a half-life of 8.56e-04 days." label="RadioactivityConcentrationOf111MagInAir" title="Radioactivity Concentration of 111Mag in Air" uid="radioactivity_concentration_of_111mAg_in_air" units="Bq m-3"></item> 14654 14591 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Xe" means the element "xenon" and "133Xe" is the isotope "xenon-133" with a half-life of 5.28e+00 days." label="RadioactivityConcentrationOf133XeInAir" title="Radioactivity Concentration of 133Xe in Air" uid="radioactivity_concentration_of_133Xe_in_air" units="Bq m-3"></item> … … 14748 14685 <item description="alias::large_scale_precipitation_flux" label="StratiformPrecipitationFlux" title="Stratiform Precipitation Flux [alias]" uid="large_scale_precipitation_flux" units="kg m-2 s-1"></item> 14749 14686 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. "Pm2p5 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. To specify the relative humidity and temperature at which the particle size applies, provide scalar coordinate variables with the standard names of "relative_humidity" and "air_temperature"." label="MassFractionOfPm2P5AmbientAerosolParticlesInAir" title="Mass Fraction of Pm2P5 Ambient Aerosol Particles in Air" uid="mass_fraction_of_pm2p5_ambient_aerosol_particles_in_air" units="1"></item> 14750 <item description=" The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Carbon13 is a stable isotope of carbon having six protons and seven neutrons." label="SurfaceDownwardMassFluxOfCarbon13DioxideAbioticAnalogueExpressedAsCarbon13" title="Surface Downward Mass Flux of Carbon13 Dioxide Abiotic Analogue Expressed As Carbon13" uid="surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13" units="kg m-2 s-1"></item>14687 <item description="alias::surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13" label="SurfaceDownwardMassFluxOf13CDioxideAbioticAnalogueExpressedAs13C" title="Surface Downward Mass Flux of 13C Dioxide Abiotic Analogue Expressed As 13C [alias]" uid="surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13" units="kg m-2 s-1"></item> 14751 14688 <item description=""Content" indicates a quantity per unit area. "Vegetation" means any living plants e.g. trees, shrubs, grass. "C" means the element carbon and "14C" is the radioactive isotope "carbon-14", having six protons and eight neutrons and used in radiocarbon dating." label="VegetationMassContentOf14C" title="Vegetation Mass Content of 14C" uid="vegetation_mass_content_of_14C" units="kg m-2"></item> 14752 14689 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for nitrogen dioxide is NO2." label="AtmosphereMolesOfNitrogenDioxide" title="Atmosphere Moles of Nitrogen Dioxide" uid="atmosphere_moles_of_nitrogen_dioxide" units="mol"></item> … … 14760 14697 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for toluene is C6H5CH3. Toluene has the same structure as benzene, except that one of the hydrogen atoms is replaced by a methyl group. The systematic name for toluene is methylbenzene. The "industrial processes and combustion" sector comprises fuel combustion activities related to manufacturing industries and construction, industrial processes related to mineral products, the chemical industry, metal production, the production of pulp, paper, food and drink, and non-energy industry use of lubricants and waxes. It may also include any not-classified or "other" combustion, which is commonly included in industry-related inventory data. "Industrial processes and combustion" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A2, 2A, 2B, 2C, 2D and 2G as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfTolueneDueToEmissionFromIndustrialProcessesAndCombustion" title="Tendency of Atmosphere Mass Content of Toluene due to Emission from Industrial Processes And Combustion" uid="tendency_of_atmosphere_mass_content_of_toluene_due_to_emission_from_industrial_processes_and_combustion" units="kg m-2 s-1"></item> 14761 14698 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Aggregation is the clumping together of frozen cloud particles to produce snowflakes. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToAggregation" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Aggregation" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_aggregation" units="s-1"></item> 14762 <item description=" alias::tendency_of_moles_of_cfc114_in_atmosphere" label="TendencyOfAtmosphereMolesOfCfc114" title="Tendency of Atmosphere Moles of Cfc114 [alias]" uid="tendency_of_moles_of_cfc114_in_atmosphere" units="mols-1"></item>14699 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same." label="TendencyOfSeaWaterSalinityExpressedAsSaltContentDueToParameterizedMesoscaleEddyAdvection" title="Tendency of Sea Water Salinity Expressed As Salt Content due to Parameterized Mesoscale Eddy Advection" uid="tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_mesoscale_eddy_advection" units="kg m-2 s-1"></item> 14763 14700 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ac" means the element "actinium" and "228Ac" is the isotope "actinium-228" with a half-life of 2.55e-01 days." label="SurfaceRadioactivityContentOf228Ac" title="Surface Radioactivity Content of 228Ac" uid="surface_radioactivity_content_of_228Ac" units="Bq m-2"></item> 14764 14701 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Atmosphere water vapor content is sometimes referred to as "precipitable water", although this term does not imply the water could all be precipitated." label="TendencyOfAtmosphereMassContentOfWaterVapor" title="Tendency of Atmosphere Mass Content of Water Vapor" uid="tendency_of_atmosphere_mass_content_of_water_vapor" units="kg m-2 s-1"></item> 14765 <item description=" The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same." label="TendencyOfSeaWaterSalinityExpressedAsSaltContentDueToParameterizedMesoscaleEddyAdvection" title="Tendency of Sea Water Salinity Expressed As Salt Content due to Parameterized Mesoscale Eddy Advection" uid="tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_mesoscale_eddy_advection" units="kg m-2s-1"></item>14702 <item description="alias::tendency_of_moles_of_cfc114_in_atmosphere" label="TendencyOfAtmosphereMolesOfCfc114" title="Tendency of Atmosphere Moles of Cfc114 [alias]" uid="tendency_of_moles_of_cfc114_in_atmosphere" units="mol s-1"></item> 14766 14703 <item description="alias::cloud_condensed_water_content_of_atmosphere_layer" label="MassContentOfCloudCondensedWaterInAtmosphereLayer" title="Mass Content of Cloud Condensed Water in Atmosphere Layer [alias]" uid="cloud_condensed_water_content_of_atmosphere_layer" units="kg m-2"></item> 14767 14704 <item description="The effective radius of a size distribution of particles, such as aerosols, cloud droplets or ice crystals, is the area weighted mean radius of particle size. It is calculated as the ratio of the third to the second moment of the particle size distribution." label="EffectiveRadiusOfCloudLiquidWaterParticle" title="Effective Radius of Cloud Liquid Water Particle" uid="effective_radius_of_cloud_liquid_water_particle" units="m"></item> … … 14770 14707 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Alcohols include all organic compounds with an alcoholic (OH) group. In standard names "alcohols" is the term used to describe the group of chemical species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "waste treatment and disposal" sector comprises solid waste disposal on land, wastewater handling, waste incineration and other waste disposal. "Waste treatment and disposal" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 6A, 6B, 6C and 6D as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfAlcoholsDueToEmissionFromWasteTreatmentAndDisposal" title="Tendency of Atmosphere Mass Content of Alcohols due to Emission from Waste Treatment And Disposal" uid="tendency_of_atmosphere_mass_content_of_alcohols_due_to_emission_from_waste_treatment_and_disposal" units="kg m-2 s-1"></item> 14771 14708 <item description="alias::tendency_of_atmosphere_mass_content_of_mercury_dry_aerosol_due_to_dry_deposition" label="TendencyOfAtmosphereMassContentOfMercuryDryAerosolParticlesDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Mercury Dry Aerosol Particles due to Dry Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_mercury_dry_aerosol_due_to_dry_deposition" units="kg m-2 s-1"></item> 14709 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Anthropogenic" means influenced, caused, or created by human activity. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction." label="TendencyOfAtmosphereMassContentOfNitrogenCompoundsExpressedAsNitrogenDueToAnthropogenicLandUseOrLandCoverChange" title="Tendency of Atmosphere Mass Content of Nitrogen Compounds Expressed As Nitrogen due to Anthropogenic Land Use Or Land Cover Change" uid="tendency_of_atmosphere_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_anthropogenic_land_use_or_land_cover_change" units="kg m-2 s-1"></item> 14772 14710 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity and temperature at which the quantity described by the standard name applies, provide scalar coordinate variables with standard names of "relative_humidity" and "air_temperature". Nitric acid trihydrate, sometimes referred to as NAT, is a stable crystalline substance consisting of three molecules of water to one molecule of nitric acid. The chemical formula for nitric acid is HNO3." label="AtmosphereMassContentOfNitricAcidTrihydrateAmbientAerosolParticles" title="Atmosphere Mass Content of Nitric Acid Trihydrate Ambient Aerosol Particles" uid="atmosphere_mass_content_of_nitric_acid_trihydrate_ambient_aerosol_particles" units="kg m-2"></item> 14773 14711 <item description="The atmosphere_stability_k_index is an index that indicates the potential of severe convection and is often referred to a simply the k index. The index is derived from the difference in air temperature between 850 and 500 hPa, the dew point temperature at 850 hPa, and the difference between the air temperature and the dew point temperature at 700 hPa. " label="AtmosphereStabilityKIndex" title="Atmosphere Stability K Index" uid="atmosphere_stability_k_index" units="K"></item> 14774 14712 <item description="The great circle distance measured from the tropical cyclone center to the leading edge of displaced convection, which is defined as the closest point that exceeds a threshold brightness temperature at top of atmosphere limit. The threshold applied should be recorded in a coordinate variable having the standard name of toa_brightness_temperature. A coordinate variable with standard name of radiation_wavelength, sensor_band_central_radiation_wavelength, or radiation_frequency may be specified to indicate that the brightness temperature applies at specific wavelengths or frequencies." label="DistanceFromTropicalCycloneCenterToLeadingEdgeOfDisplacedConvection" title="Distance from Tropical Cyclone Center to Leading Edge of Displaced Convection" uid="distance_from_tropical_cyclone_center_to_leading_edge_of_displaced_convection" units="m"></item> 14713 <item description="The effective radius of a size distribution of particles, such as aerosols, cloud droplets or ice crystals, is the area weighted mean radius of particle size. It is calculated as the ratio of the third to the second moment of the particle size distribution. The phrase "convective_liquid_water_cloud_top" refers to the top of the highest convective liquid water cloud. Convective cloud is that produced by the convection schemes in an atmosphere model." label="EffectiveRadiusOfConvectiveCloudLiquidWaterParticleAtConvectiveLiquidWaterCloudTop" title="Effective Radius of Convective Cloud Liquid Water Particle At Convective Liquid Water Cloud Top" uid="effective_radius_of_convective_cloud_liquid_water_particle_at_convective_liquid_water_cloud_top" units="m"></item> 14775 14714 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ba" means the element "barium" and "139Ba" is the isotope "barium-139" with a half-life of 5.77e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf139BaInAir" title="Integral Wrt Time of Radioactivity Concentration of 139Ba in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_139Ba_in_air" units="Bq s m-3"></item> 14715 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. Examples of "forestry and agricultural products" are paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock. Models that simulate land use changes have one or more pools of carbon that represent these products in order to conserve carbon and allow its eventual release into the atmosphere, for example, when the products decompose in landfill sites. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The definition of "crop" is model dependent, for example, some models may include fruit trees, trees grown for timber or other types of agricultural and forestry planting as crops. Crop harvesting means the human activity of collecting plant materials for the purpose of turning them into forestry or agricultural products." label="MassFluxOfCarbonIntoForestryAndAgriculturalProductsDueToCropHarvesting" title="Mass Flux of Carbon Into Forestry And Agricultural Products due to Crop Harvesting" uid="mass_flux_of_carbon_into_forestry_and_agricultural_products_due_to_crop_harvesting" units="kg m-2 s-1"></item> 14776 14716 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, whereX is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemicalformula for HCFC142b is CH3CClF2. The IUPAC name for HCFC142b is 1-chloro-1,1-difluoroethane." label="MoleFractionOfHcfc142BInAir" title="Mole Fraction of Hcfc142B in Air" uid="mole_fraction_of_hcfc142b_in_air" units="1"></item> 14777 14717 <item description=""Number concentration" means the number of particles or other specified objects per unit volume." label="NumberConcentrationOfCloudLiquidWaterParticlesInAir" title="Number Concentration of Cloud Liquid Water Particles in Air" uid="number_concentration_of_cloud_liquid_water_particles_in_air" units="m-3"></item> … … 14781 14721 <item description=""product_of_X_and_Y" means X*Y. "specific" means per unit mass. A velocity is a vector quantity. "Upward" indicates a vector component which is positive when directed upward (negative downward). Specific humidity is the mass fraction of water vapor in (moist) air. Upward air velocity is the vertical component of the 3D air velocity vector." label="ProductOfUpwardAirVelocityAndSpecificHumidity" title="Product of Upward Air Velocity And Specific Humidity" uid="product_of_upward_air_velocity_and_specific_humidity" units="m s-1"></item> 14782 14722 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "I" means the element "iodine" and "133mI" is the metastable state of the isotope "iodine-133" with a half-life of 1.04e-04 days." label="RadioactivityConcentrationOf133MiInAir" title="Radioactivity Concentration of 133Mi in Air" uid="radioactivity_concentration_of_133mI_in_air" units="Bq m-3"></item> 14783 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). Plant respiration is the sum of respiration by parts of plants both above and below the soil. Plants which photosynthesise are autotrophs i.e."producers" of the biomass which they respire from inorganic precursors using sunlight for energy. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The surface called "surface" means the lower boundary of the atmosphere. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="SurfaceUpwardCarbonMassFluxDueToPlantRespirationForBiomassGrowth" title="Surface Upward Carbon Mass Flux due to Plant Respiration For Biomass Growth" uid="surface_upward_carbon_mass_flux_due_to_plant_respiration_for_biomass_growth" units="kg m-2 s-1"></item>14784 14723 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Evaporation is the conversion of liquid or solid into vapor. Condensation is the conversion of vapor into liquid. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudLiquidWaterInAirDueToCondensationAndEvaporationFromBoundaryLayerMixing" title="Tendency of Mass Fraction of Stratiform Cloud Liquid Water in Air due to Condensation And Evaporation from Boundary Layer Mixing" uid="tendency_of_mass_fraction_of_stratiform_cloud_liquid_water_in_air_due_to_condensation_and_evaporation_from_boundary_layer_mixing" units="s-1"></item> 14785 14724 <item description="alias::bolus_eastward_sea_water_velocity" label="EastwardSeaWaterVelocityDueToParameterizedMesoscaleEddies" title="Eastward Sea Water Velocity due to Parameterized Mesoscale Eddies [alias]" uid="bolus_eastward_sea_water_velocity" units="m s-1"></item> 14725 <item description="alias::surface_upward_carbon_mass_flux_due_to_plant_respiration_for_biomass_growth" label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationForBiomassGrowth" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration For Biomass Growth [alias]" uid="surface_upward_carbon_mass_flux_due_to_plant_respiration_for_biomass_growth" units="kg m-2 s-1"></item> 14786 14726 <item description="alias::surface_upwelling_shortwave_flux_assuming_clear_sky" label="SurfaceUpwellingShortwaveFluxInAirAssumingClearSky" title="Surface Upwelling Shortwave Flux in Air Assuming Clear Sky [alias]" uid="surface_upwelling_shortwave_flux_assuming_clear_sky" units="W m-2"></item> 14787 14727 <item description="alias::atmosphere_specific_convective_available_potential_energy" label="AtmosphereConvectiveAvailablePotentialEnergy" title="Atmosphere Convective Available Potential Energy [alias]" uid="atmosphere_specific_convective_available_potential_energy" units="J kg-1"></item> … … 14798 14738 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="PrecipitationFlux" title="Precipitation Flux" uid="precipitation_flux" units="kg m-2 s-1"></item> 14799 14739 <item description=""Height_above_X" means the vertical distance above the named surface X. "Sea surface height" is a time-varying quantity. The "geopotential datum" is any estimated surface of constant geopotential used as a datum i.e. a reference level; for the geoid as a datum, specific standard names are available. To specify which geoid or geopotential datum is being used as a reference level, a grid_mapping variable should be attached to the data variable as described in Chapter 5.6 of the CF Convention." label="SeaSurfaceHeightAboveGeopotentialDatum" title="Sea Surface Height Above Geopotential Datum" uid="sea_surface_height_above_geopotential_datum" units="m"></item> 14740 <item description="The quantity with standard name sea_water_redistributed_conservative_temperature is a passive tracer in an ocean model which is subject to an externally imposed perturbative surface heat flux. The passive tracer is initialised to the conservative temperature in the control climate before the perturbation is imposed. Its surface flux is the heat flux from the atmosphere, not including the imposed perturbation, and is converted to a passive tracer increment as if it were being added to conservative temperature. The passive tracer is transported within the ocean as if it were conservative temperature. The passive tracer records redistributed heat, as described for the CMIP6 FAFMIP experiment (doi:10.5194/gmd-9-3993-2016), following earlier ideas. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2." label="SeaWaterRedistributedConservativeTemperature" title="Sea Water Redistributed Conservative Temperature" uid="sea_water_redistributed_conservative_temperature" units="degree_C"></item> 14800 14741 <item description="The phrase "square_of_X" means X*X. Frequency is the number of oscillations of a wave per unit time. Brunt-Vaisala frequency is also sometimes called "buoyancy frequency" and is a measure of the vertical stratification of the medium." label="SquareOfBruntVaisalaFrequencyInAir" title="Square of Brunt Vaisala Frequency in Air" uid="square_of_brunt_vaisala_frequency_in_air" units="s-2"></item> 14801 14742 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Xe" means the element "xenon" and "135Xe" is the isotope "xenon-135" with a half-life of 3.82e-01 days." label="SurfaceRadioactivityContentOf135Xe" title="Surface Radioactivity Content of 135Xe" uid="surface_radioactivity_content_of_135Xe" units="Bq m-2"></item> … … 14812 14753 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Sb" means the element "antimony" and "126Sb" is the isotope "antimony-126" with a half-life of 1.24e+01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf126SbInAir" title="Integral Wrt Time of Radioactivity Concentration of 126Sb in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_126Sb_in_air" units="Bq s m-3"></item> 14813 14754 <item description="moles_of_X_per_unit_mass_inY is also called "molality" of X in Y, where X is a material constituent of Y." label="MolesOfPhosphatePerUnitMassInSeaWater" title="Moles of Phosphate Per Unit Mass in Sea Water" uid="moles_of_phosphate_per_unit_mass_in_sea_water" units="mol kg-1"></item> 14755 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. "Litter" is dead plant material in or above the soil. "Vegetation" means any living plants e.g. trees, shrubs, grass." label="NitrogenMassFluxIntoLitterFromVegetation" title="Nitrogen Mass Flux Into Litter from Vegetation" uid="nitrogen_mass_flux_into_litter_from_vegetation" units="kg m-2 s-1"></item> 14814 14756 <item description=""Thickness" means the vertical extent of a layer. The quantity with standard name sea_water_mass_per_unit_area_expressed_as_thickness is the thickness of the water column from sea floor to surface, minus any contribution to column thickness from steric changes. The sea water density used to convert mass to thickness is assumed to be the density of water of standard temperature zero degrees Celsius and practical salinity S=35.0 unless an auxiliary scalar coordinate variable with standard name sea_water_density is used to specify an alternative value. The sum of the quantities with standard names sea_water_mass_per_unit_area_expressed_as_thickness and steric_change_in_sea_surface_height is the total thickness of the sea water column. Sea_water_mass_per_unit_area is the mass per unit area of the sea water contained within each grid cell. The extent of an individual grid cell is defined by the horizontal coordinates and any associated coordinate bounds or by a string valued auxiliary coordinate variable with a standard name of "region"." label="SeaWaterMassPerUnitAreaExpressedAsThickness" title="Sea Water Mass Per Unit Area Expressed As Thickness" uid="sea_water_mass_per_unit_area_expressed_as_thickness" units="m"></item> 14815 <item description="alias::tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_due_to_gravitational_settling" label="TendencyOfAtmosphereMassContentOfDustDryAerosolParticlesDueToGravitationalSettling" title="Tendency of Atmosphere Mass Content of Dust Dry Aerosol Particles due to Gravitational Settling [alias]" uid="tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_due_to_gravitational_settling" units="kg m-2 s-1"></item>14816 14757 <item description="'Mass fraction' is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convectionschemes). "tendency_of_X" means derivative of X with respect to time. "condensed_water" means liquid and ice." label="TendencyOfMassFractionOfStratiformCloudCondensedWaterInAir" title="Tendency of Mass Fraction of Stratiform Cloud Condensed Water in Air" uid="tendency_of_mass_fraction_of_stratiform_cloud_condensed_water_in_air" units="s-1"></item> 14817 14758 <item description=""Thickness" means the vertical extent of a layer." label="ThicknessOfLiquidWaterCloud" title="Thickness of Liquid Water Cloud" uid="thickness_of_liquid_water_cloud" units="m"></item> 14759 <item description="alias::tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_due_to_gravitational_settling" label="TendencyOfAtmosphereMassContentOfDustDryAerosolParticlesDueToGravitationalSettling" title="Tendency of Atmosphere Mass Content of Dust Dry Aerosol Particles due to Gravitational Settling [alias]" uid="tendency_of_atmosphere_mass_content_of_dust_dry_aerosol_due_to_gravitational_settling" units="kg m-2 s-1"></item> 14818 14760 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "U" means the element "uranium" and "240U" is the isotope "uranium-240" with a half-life of 5.99e-01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf240UInAir" title="Integral Wrt Time of Radioactivity Concentration of 240U in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_240U_in_air" units="Bq s m-3"></item> 14819 14761 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "nmvoc" means non methane volatile organic compounds; "nmvoc" is the term used in standard names to describe the group of chemical species having this classification that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute." label="MoleFractionOfNmvocExpressedAsCarbonInAir" title="Mole Fraction of Nmvoc Expressed As Carbon in Air" uid="mole_fraction_of_nmvoc_expressed_as_carbon_in_air" units="1"></item> … … 14850 14792 <item description="alias::atmosphere_mass_content_of_primary_particulate_organic_matter_dry_aerosol" label="AtmosphereMassContentOfPrimaryParticulateOrganicMatterDryAerosolParticles" title="Atmosphere Mass Content of Primary Particulate Organic Matter Dry Aerosol Particles [alias]" uid="atmosphere_mass_content_of_primary_particulate_organic_matter_dry_aerosol" units="kg m-2"></item> 14851 14793 <item description=""Canopy" means the plant or vegetation canopy. "Throughfall" is the part of the precipitation flux that reaches the ground directly through the vegetative canopy, through intershrub spaces in the canopy, and as drip from the leaves, twigs, and stems (but not including snowmelt). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="CanopyThroughfallFlux" title="Canopy Throughfall Flux" uid="canopy_throughfall_flux" units="kg m-2 s-1"></item> 14794 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. "C" means the element carbon and "14C" is the radioactive isotope "carbon-14", having six protons and eight neutrons and used in radiocarbon dating." label="MoleConcentrationOfDissolvedInorganic14CInSeaWater" title="Mole Concentration of Dissolved Inorganic 14C in Sea Water" uid="mole_concentration_of_dissolved_inorganic_14C_in_sea_water" units="mol m-3"></item> 14852 14795 <item description="Mole fraction is used in the construction "mole_fraction_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula for carbonyl sulfide is COS. The IUPAC name for carbonyl sulfide is carbon oxide sulfide." label="MoleFractionOfCarbonylSulfideInAir" title="Mole Fraction of Carbonyl Sulfide in Air" uid="mole_fraction_of_carbonyl_sulfide_in_air" units="1"></item> 14853 14796 <item description="Sound pressure is the difference from the local ambient pressure caused by a sound wave at a particular location and time." label="SoundPressureInWater" title="Sound Pressure in Water" uid="sound_pressure_in_water" units="Pa"></item> … … 14877 14820 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for alpha_pinene is C10H16. The IUPAC name for alpha-pinene is (1S,5S)-2,6,6-trimethylbicyclo[3.1.1]hept-2-ene." label="AtmosphereMassContentOfAlphaPinene" title="Atmosphere Mass Content of Alpha Pinene" uid="atmosphere_mass_content_of_alpha_pinene" units="kg m-2"></item> 14878 14821 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Br" means the element "bromine" and "82mBr" is the metastable state of the isotope "bromine-82" with a half-life of 4.24e-03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf82MbrInAir" title="Integral Wrt Time of Radioactivity Concentration of 82Mbr in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_82mBr_in_air" units="Bq s m-3"></item> 14822 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. Basal drag is a resistive stress opposing ice flow at the ice bedrock boundary." label="LandIceBasalDrag" title="Land Ice Basal Drag" uid="land_ice_basal_drag" units="Pa"></item> 14879 14823 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Xe" means the element "xenon" and "129mXe" is the metastable state of the isotope "xenon-129" with a half-life of 8.02e+00 days." label="RadioactivityConcentrationOf129MxeInAir" title="Radioactivity Concentration of 129Mxe in Air" uid="radioactivity_concentration_of_129mXe_in_air" units="Bq m-3"></item> 14880 14824 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pd" means the element "palladium" and "107mPd" is the metastable state of the isotope "palladium-107" with a half-life of 2.47e-04 days." label="SurfaceRadioactivityContentOf107Mpd" title="Surface Radioactivity Content of 107Mpd" uid="surface_radioactivity_content_of_107mPd" units="Bq m-2"></item> … … 14890 14834 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface water flux is the result of precipitation and evaporation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceUpwardWaterFlux" title="Surface Upward Water Flux" uid="surface_upward_water_flux" units="kg m-2 s-1"></item> 14891 14835 <item description="The brightness temperature of a body is the temperature of a black body which radiates the same power per unit solid angle per unit area." label="BrightnessTemperature" title="Brightness Temperature" uid="brightness_temperature" units="K"></item> 14892 <item description=""Content" indicates a quantity per unit area. "Litter carbon" is dead inorganic material in or above the soil quantified as the mass of carbon which it contains." label="LitterCarbonContent" title="Litter Carbon Content" uid="litter_carbon_content" units="kg m-2"></item> 14893 <item description=""Litter carbon" is dead inorganic material in or above the soil quantified as the mass of carbon which it contains. The litter carbon flux is the rate of production of litter. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="LitterCarbonFlux" title="Litter Carbon Flux" uid="litter_carbon_flux" units="kg m-2 s-1"></item> 14836 <item description="alias::downwelling_spectral_photon_radiance_in_sea_water" label="DownwellingPhotonRadiancePerUnitWavelengthInSeaWater" title="Downwelling Photon Radiance Per Unit Wavelength in Sea Water [alias]" uid="downwelling_spectral_photon_radiance_in_sea_water" units="mol m-2 s-1 m-1 sr-1"></item> 14894 14837 <item description="'Mass concentration' means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. 'Flagellates' are a class of single celled organisms that use a flagellum (whip-like structure) for feeding and locomotion. Some flagellates can photosynthesize and others feed on bacteria, with a few flagellatescapable of both." label="MassConcentrationOfFlagellatesExpressedAsCarbonInSeaWater" title="Mass Concentration of Flagellates Expressed As Carbon in Sea Water" uid="mass_concentration_of_flagellates_expressed_as_carbon_in_sea_water" units="kg m-3"></item> 14895 14838 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Th" means the element "thorium" and "231Th" is the isotope "thorium-231" with a half-life of 1.06e+00 days." label="RadioactivityConcentrationOf231ThInAir" title="Radioactivity Concentration of 231Th in Air" uid="radioactivity_concentration_of_231Th_in_air" units="Bq m-3"></item> … … 14899 14842 <item description="Hydraulic conductivity is the constant k in Darcy's Law q=-k grad h for fluid flow q (volume transport per unit area i.e. velocity) through a porous medium, where h is the hydraulic head (pressure expressed as an equivalent depth of water)." label="SoilHydraulicConductivityAtSaturation" title="Soil Hydraulic Conductivity At Saturation" uid="soil_hydraulic_conductivity_at_saturation" units="m s-1"></item> 14900 14843 <item description="Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SubsurfaceRunoffFlux" title="Subsurface Runoff Flux" uid="subsurface_runoff_flux" units="kg m-2 s-1"></item> 14901 <item description=" alias::downwelling_spectral_photon_radiance_in_sea_water" label="DownwellingPhotonRadiancePerUnitWavelengthInSeaWater" title="Downwelling Photon Radiance Per Unit Wavelength in Sea Water [alias]" uid="downwelling_spectral_photon_radiance_in_sea_water" units="mol m-2 s-1 m-1 sr-1"></item>14844 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Mo" means the element "molybdenum" and "102Mo" is the isotope "molybdenum-102" with a half-life of 7.71e-03 days." label="SurfaceRadioactivityContentOf102Mo" title="Surface Radioactivity Content of 102Mo" uid="surface_radioactivity_content_of_102Mo" units="Bq m-2"></item> 14902 14845 <item description="alias::integral_of_product_of_northward_wind_and_specific_humidity_wrt_height" label="IntegralWrtHeightOfProductOfNorthwardWindAndSpecificHumidity" title="Integral Wrt Height of Product of Northward Wind And Specific Humidity [alias]" uid="integral_of_product_of_northward_wind_and_specific_humidity_wrt_height" units="m2 s-1"></item> 14903 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Mo" means the element "molybdenum" and "102Mo" is the isotope "molybdenum-102" with a half-life of 7.71e-03 days." label="SurfaceRadioactivityContentOf102Mo" title="Surface Radioactivity Content of 102Mo" uid="surface_radioactivity_content_of_102Mo" units="Bq m-2"></item> 14846 <item description="alias::litter_carbon_content" label="LitterMassContentOfCarbon" title="Litter Mass Content of Carbon [alias]" uid="litter_carbon_content" units="kg m-2"></item> 14847 <item description="alias::litter_carbon_flux" label="MassFluxOfCarbonIntoLitterFromVegetation" title="Mass Flux of Carbon Into Litter from Vegetation [alias]" uid="litter_carbon_flux" units="kg m-2 s-1"></item> 14904 14848 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "F" means the element "fluorine" and "18F" is the isotope "fluorine-18" with a half-life of 6.98e-02 days." label="SurfaceRadioactivityContentOf18F" title="Surface Radioactivity Content of 18F" uid="surface_radioactivity_content_of_18F" units="Bq m-2"></item> 14905 14849 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pb" means the element "lead" and "214Pb" is the isotope "lead-214" with a half-life of 1.86e-02 days." label="SurfaceRadioactivityContentOf214Pb" title="Surface Radioactivity Content of 214Pb" uid="surface_radioactivity_content_of_214Pb" units="Bq m-2"></item> … … 14931 14875 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Te" means the element "tellurium" and "133mTe" is the metastable state of the isotope "tellurium-133" with a half-life of 3.84e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf133MteInAir" title="Integral Wrt Time of Radioactivity Concentration of 133Mte in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_133mTe_in_air" units="Bq s m-3"></item> 14932 14876 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Organic detritus are particles of debris from decaying plants and animals." label="MassConcentrationOfOrganicDetritusExpressedAsCarbonInSeaWater" title="Mass Concentration of Organic Detritus Expressed As Carbon in Sea Water" uid="mass_concentration_of_organic_detritus_expressed_as_carbon_in_sea_water" units="kg m-3"></item> 14933 <item description=""Content" indicates a quantity per unit area. "Miscellaneous living matter" means all those parts of living vegetation that are not leaf, wood, root or other separately named components." label="MiscellaneousLivingMatterCarbonContent" title="Miscellaneous Living Matter Carbon Content" uid="miscellaneous_living_matter_carbon_content" units="kg m-2"></item> 14877 <item description="alias::miscellaneous_living_matter_carbon_content" label="MiscellaneousLivingMatterMassContentOfCarbon" title="Miscellaneous Living Matter Mass Content of Carbon [alias]" uid="miscellaneous_living_matter_carbon_content" units="kg m-2"></item> 14878 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. "C" means the element carbon and "13C" is the stable isotope "carbon-13", having six protons and seven neutrons." label="MoleConcentrationOfDissolvedInorganic13CInSeaWater" title="Mole Concentration of Dissolved Inorganic 13C in Sea Water" uid="mole_concentration_of_dissolved_inorganic_13C_in_sea_water" units="mol m-3"></item> 14934 14879 <item description="" label="SeaWaterElectricalConductivity" title="Sea Water Electrical Conductivity" uid="sea_water_electrical_conductivity" units="S m-1"></item> 14935 14880 <item description="Speed is the magnitude of velocity." label="SpeedOfSoundInAir" title="Speed of Sound in Air" uid="speed_of_sound_in_air" units="m s-1"></item> … … 14942 14887 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X)." label="MassFractionOfRainInAir" title="Mass Fraction of Rain in Air" uid="mass_fraction_of_rain_in_air" units="1"></item> 14943 14888 <item description="Mole concentration means moles (amount of substance) per unit volume and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y." label="MoleConcentrationOfNitrateInSeaWater" title="Mole Concentration of Nitrate in Sea Water" uid="mole_concentration_of_nitrate_in_sea_water" units="mol m-3"></item> 14944 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "I" means the element "iodine" and "129I" is the isotope "iodine-129" with a half-life of 5.81e+09 days." label="RadioactivityConcentrationOf129IInAir" title="Radioactivity Concentration of 129I in Air" uid="radioactivity_concentration_of_129I_in_air" units="Bq m-3"></item>14945 14889 <item description=""Content" indicates a quantity per unit area. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Deposition" is the sum of wet and dry deposition. "Oxidized nitrogen compounds" means all chemical species containing nitrogen atoms with an oxidation state greater than zero. Usually, particle bound and gaseous nitrogen compounds, such as nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), nitrate (NO3-), peroxynitric acid (HNO4), bromine nitrate (BrONO2), chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)), are included. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="TendencyOfAtmosphereMassContentOfOxidizedNitrogenCompoundsExpressedAsNitrogenDueToDeposition" title="Tendency of Atmosphere Mass Content of Oxidized Nitrogen Compounds Expressed As Nitrogen due to Deposition" uid="tendency_of_atmosphere_mass_content_of_oxidized_nitrogen_compounds_expressed_as_nitrogen_due_to_deposition" units="kg m-2 s-1"></item> 14946 14890 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="MoleConcentrationOfPhytoplanktonExpressedAsNitrogenInSeaWater" title="Mole Concentration of Phytoplankton Expressed As Nitrogen in Sea Water" uid="mole_concentration_of_phytoplankton_expressed_as_nitrogen_in_sea_water" units="mol m-3"></item> 14947 14891 <item description="A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Northward" indicates a vector component which is positive when directed northward (negative southward). Sea ice velocity is defined as a two-dimensional vector, with no vertical component. "component_derivative_of_X" means derivative of X with respect to distance in the component direction, which may be northward, southward, eastward, westward, x or y. The last two indicate derivatives along the axes of the grid, in the case where they are not true longitude and latitude. The named quantity is a component of the strain rate tensor for sea ice." label="NorthwardDerivativeOfEastwardSeaIceVelocity" title="Northward Derivative of Eastward Sea Ice Velocity" uid="northward_derivative_of_eastward_sea_ice_velocity" units="s-1"></item> 14892 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "I" means the element "iodine" and "129I" is the isotope "iodine-129" with a half-life of 5.81e+09 days." label="RadioactivityConcentrationOf129IInAir" title="Radioactivity Concentration of 129I in Air" uid="radioactivity_concentration_of_129I_in_air" units="Bq m-3"></item> 14948 14893 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Po" means the element "polonium" and "214Po" is the isotope "polonium-214" with a half-life of 1.90e-09 days." label="SurfaceRadioactivityContentOf214Po" title="Surface Radioactivity Content of 214Po" uid="surface_radioactivity_content_of_214Po" units="Bq m-2"></item> 14949 14894 <item description=""Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward eastward" indicates the ZX component of a tensor. Momentum flux is dimensionally equivalent to stress and pressure. It is a tensor quantity. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="DownwardEastwardMomentumFluxInAir" title="Downward Eastward Momentum Flux in Air" uid="downward_eastward_momentum_flux_in_air" units="Pa"></item> 14950 14895 <item description=""magnitude_of_X" means magnitude of a vector X. 'Displacement' means the change in geospatial position of an object that has moved over time. If possible, the time interval over which the motion took place should be specified using a bounds variable for the time coordinate variable. A displacement can be represented as a vector. Such a vector should however not be interpreted as describing a rectilinear, constant speed motion but merely as an indication that the start point of the vector is found at the tip of the vector after the time interval associated with the displacement variable. A displacement does not prescribe a trajectory. Sea ice displacement can be defined as a two-dimensional vector, with no vertical component." label="MagnitudeOfSeaIceDisplacement" title="Magnitude of Sea Ice Displacement" uid="magnitude_of_sea_ice_displacement" units="m"></item> 14951 14896 <item description=""Number concentration" means the number of particles or other specified objects per unit volume. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. Nucleation mode aerosol particles have a diameter of less than 3 nanometers." label="NumberConcentrationOfNucleationModeAmbientAerosolParticlesInAir" title="Number Concentration of Nucleation Mode Ambient Aerosol Particles in Air" uid="number_concentration_of_nucleation_mode_ambient_aerosol_particles_in_air" units="m-3"></item> 14897 <item description=""Content" indicates a quantity per unit area." label="RootMassContentOfNitrogen" title="Root Mass Content of Nitrogen" uid="root_mass_content_of_nitrogen" units="kg m-2"></item> 14952 14898 <item description="" label="SnowDensity" title="Snow Density" uid="snow_density" units="kg m-3"></item> 14953 14899 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ag" means the element "silver" and "113Ag" is the isotope "silver-113" with a half-life of 2.21e-01 days." label="SurfaceRadioactivityContentOf113Ag" title="Surface Radioactivity Content of 113Ag" uid="surface_radioactivity_content_of_113Ag" units="Bq m-2"></item> … … 15018 14964 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for nitrogen monoxide is NO. The "savanna and grassland fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in non-forested areas. It excludes field burning of agricultural residues. "Savanna and grassland fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfNitrogenMonoxideDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Nitrogen Monoxide due to Emission from Savanna And Grassland Fires" uid="tendency_of_atmosphere_mass_content_of_nitrogen_monoxide_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> 15019 14965 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). The sea ice basal heat flux is the vertical heat flux (apart from radiation i.e. "diffusive") in sea water at the base of the sea ice. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="UpwardSeaIceBasalHeatFlux" title="Upward Sea Ice Basal Heat Flux" uid="upward_sea_ice_basal_heat_flux" units="W m-2"></item> 14966 <item description="Frequency is the number of oscillations of a wave per unit time." label="WaveFrequency" title="Wave Frequency" uid="wave_frequency" units="s-1"></item> 15020 14967 <item description="Upwelling radiation is radiation from below. It does not mean "net upward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength." label="UpwellingRadiativeFluxPerUnitWavelengthInSeaWater" title="Upwelling Radiative Flux Per Unit Wavelength in Sea Water" uid="upwelling_radiative_flux_per_unit_wavelength_in_sea_water" units="W m-2 m-1"></item> 15021 14968 <item description="The virtual_salt_flux_into_sea_water_due_to_process is the salt flux that would have the same effect on the sea surface salinity as water_flux_out_of_sea_water_due_to_process. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sea ice thermodynamics" refers to the addition or subtraction of mass due to surface and basal fluxes, i.e., due to melting, sublimation and fusion." label="VirtualSaltFluxIntoSeaWaterDueToSeaIceThermodynamics" title="Virtual Salt Flux Into Sea Water due to Sea Ice Thermodynamics" uid="virtual_salt_flux_into_sea_water_due_to_sea_ice_thermodynamics" units="kg m-2 s-1"></item> 15022 <item description="Frequency is the number of oscillations of a wave per unit time." label="WaveFrequency" title="Wave Frequency" uid="wave_frequency" units="s-1"></item>15023 14969 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. "Atmosphere energy content" has not yet been precisely defined! Please express your views on this quantity on the CF email list." label="AtmosphereEnergyContent" title="Atmosphere Energy Content" uid="atmosphere_energy_content" units="J m-2"></item> 15024 14970 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for propene is C3H6. Propene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species." label="AtmosphereMassContentOfPropene" title="Atmosphere Mass Content of Propene" uid="atmosphere_mass_content_of_propene" units="kg m-2"></item> 15025 14971 <item description=""Amount" means mass per unit area. Zero change in land ice amount is an arbitrary level. "Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves." label="ChangeInLandIceAmount" title="Change in Land Ice Amount" uid="change_in_land_ice_amount" units="kg m-2"></item> 14972 <item description="alias::integral_of_sea_ice_temperature_wrt_depth_expressed_as_heat_content" label="IntegralWrtDepthOfSeaIceTemperatureExpressedAsHeatContent" title="Integral Wrt Depth of Sea Ice Temperature Expressed As Heat Content [alias]" uid="integral_of_sea_ice_temperature_wrt_depth_expressed_as_heat_content" units="J m-2"></item> 15026 14973 <item description=""longwave" means longwave radiation. Radiance is the radiative flux in a particular direction, per unit of solid angle. If radiation is isotropic, the radiance is independent of direction, so the direction should not be specified. If the radiation is directionally dependent, a standard name of upwelling or downwelling radiance should be chosen instead." label="IsotropicLongwaveRadianceInAir" title="Isotropic Longwave Radiance in Air" uid="isotropic_longwave_radiance_in_air" units="W m-2 sr-1"></item> 15027 14974 <item description="A velocity is a vector quantity. "y" indicates a vector component along the grid y-axis, positive with increasing y." label="SeaIceYVelocity" title="Sea Ice Y Velocity" uid="sea_ice_y_velocity" units="m s-1"></item> 15028 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used." label="SoilCarbonContent" title="Soil Carbon Content" uid="soil_carbon_content" units="kg m-2"></item>15029 14975 <item description="Stratiform precipitation, whether liquid or frozen, is precipitation that formed in stratiform cloud. "Amount" means mass per unit area." label="StratiformSnowfallAmount" title="Stratiform Snowfall Amount" uid="stratiform_snowfall_amount" units="kg m-2"></item> 15030 14976 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Fires excluding anthropogenic land use change" means all natural fires and human ignited fires that are not associated with change of land use. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for carbon dioxide is CO2. "Anthropogenic" means influenced, caused, or created by human activity." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToEmissionFromFiresExcludingAnthropogenicLandUseChange" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Emission from Fires Excluding Anthropogenic Land Use Change" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_fires_excluding_anthropogenic_land_use_change" units="kg m-2 s-1"></item> 15031 14977 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. In organic chemistry, a ketone is a compound with the structure RC(=O)R', where R and R' can be a variety of atoms and groups of atoms. It features a carbonyl group (C=O) bonded to two other carbon atoms. Acetone is the simplest example of a ketone. In standard names "ketones" is the term used to describe the group of ketone species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "agricultural waste burning" sector comprises field burning of agricultural residues. "Agricultural waste burning" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 4F as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfKetonesDueToEmissionFromAgriculturalWasteBurning" title="Tendency of Atmosphere Mass Content of Ketones due to Emission from Agricultural Waste Burning" uid="tendency_of_atmosphere_mass_content_of_ketones_due_to_emission_from_agricultural_waste_burning" units="kg m-2 s-1"></item> 15032 14978 <item description=""shortwave" means shortwave radiation. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward radiation is the difference between radiation from above (downwelling) and radiation from below (upwelling). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="TropopauseNetDownwardShortwaveFlux" title="Tropopause Net Downward Shortwave Flux" uid="tropopause_net_downward_shortwave_flux" units="W m-2"></item> 15033 <item description="alias:: integral_of_sea_ice_temperature_wrt_depth_expressed_as_heat_content" label="IntegralWrtDepthOfSeaIceTemperatureExpressedAsHeatContent" title="Integral Wrt Depth of Sea Ice Temperature Expressed As Heat Content [alias]" uid="integral_of_sea_ice_temperature_wrt_depth_expressed_as_heat_content" units="Jm-2"></item>14979 <item description="alias::soil_carbon_content" label="SoilMassContentOfCarbon" title="Soil Mass Content of Carbon [alias]" uid="soil_carbon_content" units="kg m-2"></item> 15034 14980 <item description="A velocity is a vector quantity. "Northward" indicates a vector component which is positive when directed northward (negative southward)." label="BaroclinicNorthwardSeaWaterVelocity" title="Baroclinic Northward Sea Water Velocity" uid="baroclinic_northward_sea_water_velocity" units="m s-1"></item> 15035 14981 <item description="Downwelling radiation is radiation from above. It does not mean "net downward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. "shortwave" means shortwave radiation. "Diffuse" radiation is radiation that has been scattered by particles in the atmosphere such as cloud droplets and aerosols." label="DiffuseDownwellingShortwaveFluxInAir" title="Diffuse Downwelling Shortwave Flux in Air" uid="diffuse_downwelling_shortwave_flux_in_air" units="W m-2"></item> … … 15136 15082 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X)." label="MassFractionOfCloudLiquidWaterInAir" title="Mass Fraction of Cloud Liquid Water in Air" uid="mass_fraction_of_cloud_liquid_water_in_air" units="1"></item> 15137 15083 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Th" means the element "thorium" and "229Th" is the isotope "thorium-229" with a half-life of 2.68e+06 days." label="RadioactivityConcentrationOf229ThInAir" title="Radioactivity Concentration of 229Th in Air" uid="radioactivity_concentration_of_229Th_in_air" units="Bq m-3"></item> 15084 <item description=""Litter" is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between "fine" and "coarse" is model dependent. "Subsurface litter" means the part of the litter mixed within the soil below the surface. "Content" indicates a quantity per unit area. The sum of the quantities with standard names surface_litter_mass_content_of_carbon and subsurface_litter_mass_content_of_carbon has the standard name litter_mass_content_of_carbon." label="SubsurfaceLitterMassContentOfCarbon" title="Subsurface Litter Mass Content of Carbon" uid="subsurface_litter_mass_content_of_carbon" units="kg m-2"></item> 15138 15085 <item description="A phrase assuming_condition indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition. "longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="ToaOutgoingLongwaveFluxAssumingClearSky" title="Toa Outgoing Longwave Flux Assuming Clear Sky" uid="toa_outgoing_longwave_flux_assuming_clear_sky" units="W m-2"></item> 15139 15086 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for dichlorine peroxide is Cl2O2." label="MassConcentrationOfDichlorinePeroxideInAir" title="Mass Concentration of Dichlorine Peroxide in Air" uid="mass_concentration_of_dichlorine_peroxide_in_air" units="kg m-3"></item> 15140 15087 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol. "Dry aerosol particles" means aerosol particles without any water uptake. "Primary particulate organic matter " means all organic matter emitted directly to the atmosphere as particles except elemental carbon. The sum of primary_particulate_organic_matter_dry_aerosol and secondary_particulate_organic_matter_dry_aerosol is particulate_organic_matter_dry_aerosol." label="MassFractionOfPrimaryParticulateOrganicMatterDryAerosolParticlesInAir" title="Mass Fraction of Primary Particulate Organic Matter Dry Aerosol Particles in Air" uid="mass_fraction_of_primary_particulate_organic_matter_dry_aerosol_particles_in_air" units="1"></item> 15088 <item description=""Number concentration" means the number of particles or other specified objects per unit volume. The phrase "stratiform_liquid_water_cloud_top" refers to the top of the highest stratiform liquid water cloud. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes)." label="NumberConcentrationOfStratiformCloudLiquidWaterParticleAtStratiformLiquidWaterCloudTop" title="Number Concentration of Stratiform Cloud Liquid Water Particle At Stratiform Liquid Water Cloud Top" uid="number_concentration_of_stratiform_cloud_liquid_water_particle_at_stratiform_liquid_water_cloud_top" units="m-3"></item> 15141 15089 <item description="The ocean mixed layer is the upper part of the ocean, regarded as being well-mixed. The base of the mixed layer defined by temperature, sigma or sigma_theta is the level at which the quantity indicated differs from its surface value by a certain amount." label="OceanMixedLayerThicknessDefinedByTemperature" title="Ocean Mixed Layer Thickness Defined by Temperature" uid="ocean_mixed_layer_thickness_defined_by_temperature" units="m"></item> 15142 15090 <item description="Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. "xy diffusivity" means the lateral along_coordinate component of diffusivity due to motion which is not resolved on the grid scale of the model. xy diffusivities are used in some ocean models to counteract the numerical instabilities inherent in certain implementations of rotated neutral diffusion. "biharmonic diffusivity" means diffusivity for use with a biharmonic diffusion operator." label="OceanTracerXyBiharmonicDiffusivity" title="Ocean Tracer Xy Biharmonic Diffusivity" uid="ocean_tracer_xy_biharmonic_diffusivity" units="m4 s-1"></item> … … 15144 15092 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pa" means the element "protactinium" and "232Pa" is the isotope "protactinium-232" with a half-life of 1.31e+00 days." label="RadioactivityConcentrationOf232PaInAir" title="Radioactivity Concentration of 232Pa in Air" uid="radioactivity_concentration_of_232Pa_in_air" units="Bq m-3"></item> 15145 15093 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Alcohols include all organic compounds with an alcoholic (OH) group. In standard names "alcohols" is the term used to describe the group of chemical species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "industrial processes and combustion" sector comprises fuel combustion activities related to manufacturing industries and construction, industrial processes related to mineral products, the chemical industry, metal production, the production of pulp, paper, food and drink, and non-energy industry use of lubricants and waxes. It may also include any not-classified or "other" combustion, which is commonly included in industry-related inventory data. "Industrial processes and combustion" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A2, 2A, 2B, 2C, 2D and 2G as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfAlcoholsDueToEmissionFromIndustrialProcessesAndCombustion" title="Tendency of Atmosphere Mass Content of Alcohols due to Emission from Industrial Processes And Combustion" uid="tendency_of_atmosphere_mass_content_of_alcohols_due_to_emission_from_industrial_processes_and_combustion" units="kg m-2 s-1"></item> 15146 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X)." label="TendencyOfMassFractionOfCloudIceInAirDueToAdvection" title="Tendency of Mass Fraction of Cloud Ice in Air due to Advection" uid="tendency_of_mass_fraction_of_cloud_ice_in_air_due_to_advection" units="s-1"></item>15147 15094 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Evaporation is the conversion of liquid or solid into vapor. Condensation is the conversion of vapor into liquid. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudLiquidWaterInAirDueToCondensationAndEvaporation" title="Tendency of Mass Fraction of Stratiform Cloud Liquid Water in Air due to Condensation And Evaporation" uid="tendency_of_mass_fraction_of_stratiform_cloud_liquid_water_in_air_due_to_condensation_and_evaporation" units="s-1"></item> 15148 15095 <item description="alias::integral_of_surface_downwelling_shortwave_flux_in_air_wrt_time" label="IntegralWrtTimeOfSurfaceDownwellingShortwaveFluxInAir" title="Integral Wrt Time of Surface Downwelling Shortwave Flux in Air [alias]" uid="integral_of_surface_downwelling_shortwave_flux_in_air_wrt_time" units="W s m-2"></item> 15096 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X)." label="TendencyOfMassFractionOfCloudIceInAirDueToAdvection" title="Tendency of Mass Fraction of Cloud Ice in Air due to Advection" uid="tendency_of_mass_fraction_of_cloud_ice_in_air_due_to_advection" units="s-1"></item> 15149 15097 <item description=""longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="UpwellingLongwaveFluxInAir" title="Upwelling Longwave Flux in Air" uid="upwelling_longwave_flux_in_air" units="W m-2"></item> 15150 15098 <item description="The quantity with standard name acoustic_signal_roundtrip_travel_time_in_sea_water is the time taken for an acoustic signal to propagate from the emitting instrument to a reflecting surface and back again to the instrument. In the case of an instrument based on the sea floor and measuring the roundtrip time to the sea surface, the data are commonly used as a measure of ocean heat content." label="AcousticSignalRoundtripTravelTimeInSeaWater" title="Acoustic Signal Roundtrip Travel Time in Sea Water" uid="acoustic_signal_roundtrip_travel_time_in_sea_water" units="s"></item> 15151 <item description=""Content" indicates a quantity per unit area. Examples of "forestry and agricultural products" are paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock. Models that simulate land use changes have one or more pools of carbon that represent these products in order to conserve carbon and allow its eventual release into the atmosphere, for example, when the products decompose in landfill sites." label="CarbonContentOfForestryAndAgriculturalProducts" title="Carbon Content of Forestry And Agricultural Products" uid="carbon_content_of_forestry_and_agricultural_products" units="kg m-2"></item>15152 15099 <item description=""direction_of_X" means direction of a vector, a bearing. "Displacement" means the change in geospatial position of an object that has moved over time. If possible, the time interval over which the motion took place should be specified using a bounds variable for the time coordinate variable. A displacement can be represented as a vector. Such a vector should however not be interpreted as describing a rectilinear, constant speed motion but merely as an indication that the start point of the vector is found at the tip of the vector after the time interval associated with the displacement variable. A displacement does not prescribe a trajectory. Sea ice displacement can be defined as a two-dimensional vector, with no vertical component. In that case, "displacement" is also the distance across the earth's surface calculated from the change in a moving object's geospatial position between the start and end of the time interval associated with the displacement variable. The "direction of displacement" is the angle between due north and the displacement vector." label="DirectionOfSeaIceDisplacement" title="Direction of Sea Ice Displacement" uid="direction_of_sea_ice_displacement" units="degrees"></item> 15153 15100 <item description=""direction_of_X" means direction of a vector, a bearing. A velocity is a vector quantity. Sea ice velocity is defined as a two-dimensional vector, with no vertical component." label="DirectionOfSeaIceVelocity" title="Direction of Sea Ice Velocity" uid="direction_of_sea_ice_velocity" units="degree"></item> … … 15156 15103 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Np" means the element "neptunium" and "235Np" is the isotope "neptunium-235" with a half-life of 4.09e+02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf235NpInAir" title="Integral Wrt Time of Radioactivity Concentration of 235Np in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_235Np_in_air" units="Bq s m-3"></item> 15157 15104 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula of CFC11 is CFCl3. The IUPAC name fof CFC11 is trichloro-fluoro-methane." label="MassFractionOfCfc11InAir" title="Mass Fraction of Cfc11 in Air" uid="mass_fraction_of_cfc11_in_air" units="1"></item> 15105 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for xylene is C6H4C2H6. In chemistry, xylene is a generic term for a group of three isomers of dimethylbenzene. The IUPAC names for the isomers are 1,2-dimethylbenzene, 1,3-dimethylbenzene and 1,4-dimethylbenzene. Xylene is an aromatic hydrocarbon. There are standard names that refer to aromatic_compounds as a group, as well as those for individual species. The "maritime transport" sector includes fuel combustion activities related to maritime transport. "Maritime transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 1A3d as defined in the 2006 IPCC guidelines for national greenhouse gas Inventories"." label="TendencyOfAtmosphereMassContentOfXyleneDueToEmissionFromMaritimeTransport" title="Tendency of Atmosphere Mass Content of Xylene due to Emission from Maritime Transport" uid="tendency_of_atmosphere_mass_content_of_xylene_due_to_emission_from_maritime_transport" units="kg m-2 s-1"></item> 15106 <item description="alias::carbon_content_of_forestry_and_agricultural_products" label="CarbonMassContentOfForestryAndAgriculturalProducts" title="Carbon Mass Content of Forestry And Agricultural Products [alias]" uid="carbon_content_of_forestry_and_agricultural_products" units="kg m-2"></item> 15158 15107 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated in terms of B alone, neglecting all other chemical constituents of A." label="MoleConcentrationOfMesozooplanktonExpressedAsNitrogenInSeaWater" title="Mole Concentration of Mesozooplankton Expressed As Nitrogen in Sea Water" uid="mole_concentration_of_mesozooplankton_expressed_as_nitrogen_in_sea_water" units="mol m-3"></item> 15159 15108 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Rn" means the element "radon" and "219Rn" is the isotope "radon-219" with a half-life of 4.64e-05 days." label="SurfaceRadioactivityContentOf219Rn" title="Surface Radioactivity Content of 219Rn" uid="surface_radioactivity_content_of_219Rn" units="Bq m-2"></item> 15160 15109 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pa" means the element "protactinium" and "232Pa" is the isotope "protactinium-232" with a half-life of 1.31e+00 days." label="SurfaceRadioactivityContentOf232Pa" title="Surface Radioactivity Content of 232Pa" uid="surface_radioactivity_content_of_232Pa" units="Bq m-2"></item> 15161 15110 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Sr" means the element "strontium" and "89Sr" is the isotope "strontium-89" with a half-life of 5.21e+01 days." label="SurfaceRadioactivityContentOf89Sr" title="Surface Radioactivity Content of 89Sr" uid="surface_radioactivity_content_of_89Sr" units="Bq m-2"></item> 15162 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for xylene is C6H4C2H6. In chemistry, xylene is a generic term for a group of three isomers of dimethylbenzene. The IUPAC names for the isomers are 1,2-dimethylbenzene, 1,3-dimethylbenzene and 1,4-dimethylbenzene. Xylene is an aromatic hydrocarbon. There are standard names that refer to aromatic_compounds as a group, as well as those for individual species. The "maritime transport" sector includes fuel combustion activities related to maritime transport. "Maritime transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 1A3d as defined in the 2006 IPCC guidelines for national greenhouse gas Inventories"." label="TendencyOfAtmosphereMassContentOfXyleneDueToEmissionFromMaritimeTransport" title="Tendency of Atmosphere Mass Content of Xylene due to Emission from Maritime Transport" uid="tendency_of_atmosphere_mass_content_of_xylene_due_to_emission_from_maritime_transport" units="kg m-2 s-1"></item>15163 15111 <item description=""tendency_of_X" means derivative of X with respect to time. "X_area_fraction" means the fraction of horizontal area occupied by X. Sea ice area fraction is area of the sea surface occupied by sea ice. It is also called "sea ice concentration". "Sea ice dynamics" refers to the motion of sea ice." label="TendencyOfSeaIceAreaFractionDueToDynamics" title="Tendency of Sea Ice Area Fraction due to Dynamics" uid="tendency_of_sea_ice_area_fraction_due_to_dynamics" units="s-1"></item> 15112 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including "content_of_soil_layer" are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. "Fertilization" means the addition of artificial fertilizers and animal manure to soil for the purpose of increasing plant nutrient concentrations." label="TendencyOfSoilMassContentOfNitrogenCompoundsExpressedAsNitrogenDueToFertilization" title="Tendency of Soil Mass Content of Nitrogen Compounds Expressed As Nitrogen due to Fertilization" uid="tendency_of_soil_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_fertilization" units="kg m-2 s-1"></item> 15164 15113 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for dinitrogen pentoxide is N2O5." label="AtmosphereMolesOfDinitrogenPentoxide" title="Atmosphere Moles of Dinitrogen Pentoxide" uid="atmosphere_moles_of_dinitrogen_pentoxide" units="mol"></item> 15165 15114 <item description=""x" indicates a vector component along the grid x-axis, positive with increasing x. "Downward" indicates a vector component which is positive when directed downward (negative upward)." label="DownwardXStressAtSeaIceBase" title="Downward X Stress At Sea Ice Base" uid="downward_x_stress_at_sea_ice_base" units="Pa"></item> … … 15216 15165 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Eu" means the element "europium" and "158Eu" is the isotope "europium-158" with a half-life of 3.18e-02 days." label="RadioactivityConcentrationOf158EuInAir" title="Radioactivity Concentration of 158Eu in Air" uid="radioactivity_concentration_of_158Eu_in_air" units="Bq m-3"></item> 15217 15166 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Am" means the element "americium" and "244Am" is the isotope "americium-244" with a half-life of 4.20e-01 days." label="RadioactivityConcentrationOf244AmInAir" title="Radioactivity Concentration of 244Am in Air" uid="radioactivity_concentration_of_244Am_in_air" units="Bq m-3"></item> 15167 <item description=""Content" indicates a quantity per unit area. The stem of a plant is the axis that bears buds and shoots with leaves and, at its basal end, roots. Its function is to carry water and nutrients. Examples include the stalk of a plant or the main trunk of a tree." label="StemMassContentOfCarbon" title="Stem Mass Content of Carbon" uid="stem_mass_content_of_carbon" units="kg m-2"></item> 15218 15168 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Sb" means the element "antimony" and "124mSb" is the metastable state of the isotope "antimony-124" with a half-life of 1.41e-02 days." label="SurfaceRadioactivityContentOf124Msb" title="Surface Radioactivity Content of 124Msb" uid="surface_radioactivity_content_of_124mSb" units="Bq m-2"></item> 15219 15169 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition" is the sum of turbulent deposition and gravitational settling. The chemical formula for acetic_acid is CH3COOH. The IUPAC name for acetic acid is ethanoic acid." label="TendencyOfAtmosphereMassContentOfAceticAcidDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Acetic Acid due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_acetic_acid_due_to_dry_deposition" units="kg m-2 s-1"></item> … … 15263 15213 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used." label="AtmosphereMassContentOfCloudIce" title="Atmosphere Mass Content of Cloud Ice" uid="atmosphere_mass_content_of_cloud_ice" units="kg m-2"></item> 15264 15214 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for carbon dioxide is CO2." label="MoleConcentrationOfCarbonDioxideInAir" title="Mole Concentration of Carbon Dioxide in Air" uid="mole_concentration_of_carbon_dioxide_in_air" units="mol m-3"></item> 15215 <item description=""Content" indicates a quantity per unit area. The stem of a plant is the axis that bears buds and shoots with leaves and, at its basal end, roots. Its function is to carry water and nutrients. Examples include the stalk of a plant or the main trunk of a tree." label="StemMassContentOfNitrogen" title="Stem Mass Content of Nitrogen" uid="stem_mass_content_of_nitrogen" units="kg m-2"></item> 15265 15216 <item description="The surface called "surface" means the lower boundary of the atmosphere. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume." label="SurfacePartialPressureOfCarbonDioxideInAir" title="Surface Partial Pressure of Carbon Dioxide in Air" uid="surface_partial_pressure_of_carbon_dioxide_in_air" units="Pa"></item> 15266 15217 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Wet deposition" means deposition by precipitation. The chemical formula for acetic_acid is CH3COOH. The IUPAC name for acetic acid is ethanoic acid." label="TendencyOfAtmosphereMassContentOfAceticAcidDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Acetic Acid due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_acetic_acid_due_to_wet_deposition" units="kg m-2 s-1"></item> 15267 15218 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for benzene is C6H6. Benzene is the simplest aromatic hydrocarbon and has a ring structure consisting of six carbon atoms joined by alternating single and double chemical bonds. Each carbon atom is additionally bonded to one hydrogen atom. There are standard names that refer to aromatic_compounds as a group, as well as those for individual species. The "agricultural waste burning" sector comprises field burning of agricultural residues. "Agricultural waste burning" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 4F as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfBenzeneDueToEmissionFromAgriculturalWasteBurning" title="Tendency of Atmosphere Mass Content of Benzene due to Emission from Agricultural Waste Burning" uid="tendency_of_atmosphere_mass_content_of_benzene_due_to_emission_from_agricultural_waste_burning" units="kg m-2 s-1"></item> 15268 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToConvectiveDetrainment" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Convective Detrainment" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_convective_detrainment" units="s-1"></item>15269 <item description="alias::tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_due_to_dry_deposition" label="TendencyOfAtmosphereMassContentOfParticulateOrganicMatterDryAerosolParticlesDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Particulate Organic Matter Dry Aerosol Particles due to Dry Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_due_to_dry_deposition" units="kg m-2 s-1"></item>15270 15219 <item description="alias::tendency_of_moles_of_methane_in_middle_atmosphere" label="TendencyOfMiddleAtmosphereMolesOfMethane" title="Tendency of Middle Atmosphere Moles of Methane [alias]" uid="tendency_of_moles_of_methane_in_middle_atmosphere" units="mol s-1"></item> 15271 15220 <item description=""toa" means top of atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward radiation is the difference between radiation from above (downwelling) and radiation from below (upwelling). Radiative flux is the sum of shortwave and longwave radiative fluxes. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="ToaNetDownwardRadiativeFlux" title="Toa Net Downward Radiative Flux" uid="toa_net_downward_radiative_flux" units="W m-2"></item> 15221 <item description="alias::tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_due_to_dry_deposition" label="TendencyOfAtmosphereMassContentOfParticulateOrganicMatterDryAerosolParticlesDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Particulate Organic Matter Dry Aerosol Particles due to Dry Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_due_to_dry_deposition" units="kg m-2 s-1"></item> 15222 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToConvectiveDetrainment" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Convective Detrainment" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_convective_detrainment" units="s-1"></item> 15272 15223 <item description=""Compressive strength" is a measure of the capacity of a material to withstand compressive forces. If compressive forces are exerted on a material in excess of its compressive strength, fracturing will occur." label="CompressiveStrengthOfSeaIce" title="Compressive Strength of Sea Ice" uid="compressive_strength_of_sea_ice" units="Pa m"></item> 15273 15224 <item description="Downwelling radiation is radiation from above. It does not mean "net downward". "Photosynthetic" radiation is the part of the spectrum which is used in photosynthesis e.g. 400-700 nm. The range of wavelengths could be specified precisely by the bounds of a coordinate of radiation_wavelength. Photon spherical irradiance is the photon flux incident on unit area of a hemispherical (or "2-pi") collector. The direction ("up/downwelling") is specified. Radiation incident on a 4-pi collector has a standard name referring to "omnidirectional spherical irradiance". A photon flux is specified in terms of numbers of photons expressed in moles." label="DownwellingPhotosyntheticPhotonSphericalIrradianceInSeaWater" title="Downwelling Photosynthetic Photon Spherical Irradiance in Sea Water" uid="downwelling_photosynthetic_photon_spherical_irradiance_in_sea_water" units="mol m-2 s-1"></item> … … 15281 15232 <item description="Relative humidity at which the size of a sampled aerosol particle was selected. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself." label="RelativeHumidityForAerosolParticleSizeSelection" title="Relative Humidity For Aerosol Particle Size Selection" uid="relative_humidity_for_aerosol_particle_size_selection" units="1"></item> 15282 15233 <item description="The sea surface subskin temperature is the temperature at the base of the conductive laminar sub-layer of the ocean surface, that is, at a depth of approximately 1 - 1.5 millimeters below the air-sea interface. For practical purposes, this quantity can be well approximated to the measurement of surface temperature by a microwave radiometer operating in the 6 - 11 gigahertz frequency range, but the relationship is neither direct nor invariant to changing physical conditions or to the specific geometry of the microwave measurements. Measurements of this quantity are subject to a large potential diurnal cycle due to thermal stratification of the upper ocean layer in low wind speed high solar irradiance conditions." label="SeaSurfaceSubskinTemperature" title="Sea Surface Subskin Temperature" uid="sea_surface_subskin_temperature" units="K"></item> 15234 <item description=""Land ice not displacing sea water" means land ice that would not alter sea level if the ice were converted to water and added to the ocean. It excludes ice shelves (and any other sort of floating ice) and it excludes a fraction of grounded ice-sheet mass equivalent to the mass of any sea water it displaces. It includes glaciers and a portion of grounded ice-sheet mass exceeding the mass of any sea water displaced. The quantity with standard name land_ice_mass_not_displacing_sea_water is the total mass integrated over an area of land ice. The geographical extent of the ice over which the mass was calculated should be described by providing bounds on the horizontal coordinate variable or scalar with the standard name of "region" supplied according to section 6.1.1 of the CF convention." label="LandIceMassNotDisplacingSeaWater" title="Land Ice Mass Not Displacing Sea Water" uid="land_ice_mass_not_displacing_sea_water" units="kg"></item> 15283 15235 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for the nitrate anion is NO3-. The chemical formula for the nitrite anion is NO2-." label="MoleConcentrationOfNitrateAndNitriteInSeaWater" title="Mole Concentration of Nitrate And Nitrite in Sea Water" uid="mole_concentration_of_nitrate_and_nitrite_in_sea_water" units="mol m-3"></item> 15284 15236 <item description="alias::ocean_heat_x_transport_due_to_bolus_advection" label="OceanHeatXTransportDueToParameterizedEddyAdvection" title="Ocean Heat X Transport due to Parameterized Eddy Advection [alias]" uid="ocean_heat_x_transport_due_to_bolus_advection" units="W"></item> … … 15294 15246 <item description=""longwave" means longwave radiation. "toa" means top of atmosphere. Adjusted forcing is the radiative flux change caused by an imposed change in radiative forcing agent (greenhouse gases, aerosol, solar radiation, etc.) after allowance for stratospheric temperature adjustment." label="ToaAdjustedLongwaveForcing" title="Toa Adjusted Longwave Forcing" uid="toa_adjusted_longwave_forcing" units="W m-2"></item> 15295 15247 <item description="alias::mass_concentration_of_sulfate_ambient_aerosol_in_air" label="MassConcentrationOfSulfateAmbientAerosolParticlesInAir" title="Mass Concentration of Sulfate Ambient Aerosol Particles in Air [alias]" uid="mass_concentration_of_sulfate_ambient_aerosol_in_air" units="kg m-3"></item> 15296 <item description=" Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Carbon14 is a radioactive isotope of carbon having six protons and eight neutrons, used in radiocarbon dating." label="MoleConcentrationOfDissolvedInorganicCarbon14InSeaWater" title="Mole Concentration of Dissolved Inorganic Carbon14 in Sea Water" uid="mole_concentration_of_dissolved_inorganic_carbon14_in_sea_water" units="mol m-3"></item>15248 <item description="alias::mole_concentration_of_dissolved_inorganic_carbon14_in_sea_water" label="MoleConcentrationOfDissolvedInorganic14CInSeaWater" title="Mole Concentration of Dissolved Inorganic 14C in Sea Water [alias]" uid="mole_concentration_of_dissolved_inorganic_carbon14_in_sea_water" units="mol m-3"></item> 15297 15249 <item description="Fluxes at the top_of_atmosphere_model differ from TOA fluxes only if the model TOA fluxes make some allowance for the atmosphere above the top of the model; if not, it is usual to give standard names with toa to the fluxes at the top of the model atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward radiation is the difference between radiation from above (downwelling) and radiation from below (upwelling). Radiative flux is the sum of shortwave and longwave radiative fluxes. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="NetDownwardRadiativeFluxAtTopOfAtmosphereModel" title="Net Downward Radiative Flux At Top of Atmosphere Model" uid="net_downward_radiative_flux_at_top_of_atmosphere_model" units="W m-2"></item> 15298 15250 <item description=""wrt" means with respect to. Speed is the magnitude of velocity. Standard names for platform describe the motion and orientation of the vehicle from which observations are made e.g. aeroplane, ship or satellite. The platform speed with respect to ground is relative to the solid Earth beneath it, i.e. the sea floor for a ship. It is often called the "ground speed" of the platform." label="PlatformSpeedWrtGround" title="Platform Speed Wrt Ground" uid="platform_speed_wrt_ground" units="m s-1"></item> … … 15345 15297 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "In" means the element "indium" and "113mIn" is the metastable state of the isotope "indium-113" with a half-life of 6.92e-02 days." label="RadioactivityConcentrationOf113MinInAir" title="Radioactivity Concentration of 113Min in Air" uid="radioactivity_concentration_of_113mIn_in_air" units="Bq m-3"></item> 15346 15298 <item description=""X_area" means the horizontal area occupied by X within the grid cell. The extent of an individual grid cell is defined by the horizontal coordinates and any associated coordinate bounds or by a string valued auxiliary coordinate variable with a standard name of "region"." label="SeaIceArea" title="Sea Ice Area" uid="sea_ice_area" units="m2"></item> 15299 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. It is assumed that all the respired carbon dioxide is emitted to the atmosphere. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide. "Miscellaneous living matter" means all those parts of plants that are not leaf, stem, root or other separately named components." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationInMiscellaneousLivingMatter" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration in Miscellaneous Living Matter" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_miscellaneous_living_matter" units="kg m-2 s-1"></item> 15347 15300 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for ammonia is NH3. The "industrial processes and combustion" sector comprises fuel combustion activities related to manufacturing industries and construction, industrial processes related to mineral products, the chemical industry, metal production, the production of pulp, paper, food and drink, and non-energy industry use of lubricants and waxes. It may also include any not-classified or "other" combustion, which is commonly included in industry-related inventory data. "Industrial processes and combustion" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A2, 2A, 2B, 2C, 2D and 2G as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfAmmoniaDueToEmissionFromIndustrialProcessesAndCombustion" title="Tendency of Atmosphere Mass Content of Ammonia due to Emission from Industrial Processes And Combustion" uid="tendency_of_atmosphere_mass_content_of_ammonia_due_to_emission_from_industrial_processes_and_combustion" units="kg m-2 s-1"></item> 15348 15301 <item description="alias::tendency_of_specific_humidity_due_to_large_scale_precipitation" label="TendencyOfSpecificHumidityDueToStratiformPrecipitation" title="Tendency of Specific Humidity due to Stratiform Precipitation [alias]" uid="tendency_of_specific_humidity_due_to_large_scale_precipitation" units="s-1"></item> … … 15354 15307 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ga" means the element "gallium" and "72Ga" is the isotope "gallium-72" with a half-life of 5.86e-01 days." label="SurfaceRadioactivityContentOf72Ga" title="Surface Radioactivity Content of 72Ga" uid="surface_radioactivity_content_of_72Ga" units="Bq m-2"></item> 15355 15308 <item description="The surface called "surface" means the lower boundary of the atmosphere. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceRunoffFlux" title="Surface Runoff Flux" uid="surface_runoff_flux" units="kg m-2 s-1"></item> 15309 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The term "fires" means all biomass fires, whether naturally occurring or ignited by humans." label="SurfaceUpwardMassFluxOfNitrogenCompoundsExpressedAsNitrogenDueToEmissionFromFires" title="Surface Upward Mass Flux of Nitrogen Compounds Expressed As Nitrogen due to Emission from Fires" uid="surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_due_to_emission_from_fires" units="kg m-2 s-1"></item> 15356 15310 <item description="Potential density is the density a parcel of air or sea water would have if moved adiabatically to a reference pressure, by default assumed to be sea level pressure. For sea water potential density, if 1000 kg m-3 is subtracted, the standard name "sea_water_sigma_theta" should be chosen instead. "change_over_time_in_X" means change in a quantity X over a time-interval, which should be defined by the bounds of the time coordinate." label="ChangeOverTimeInSeaWaterPotentialDensity" title="Change Over Time in Sea Water Potential Density" uid="change_over_time_in_sea_water_potential_density" units="kg m-3"></item> 15357 15311 <item description="The "gross rate of decrease in area fraction" is the fraction of a grid cell that transitions from a given area type per unit time, for example, as a result of land use changes. The quantity described by this standard name is a gross decrease because it includes only land where the use transitions away from the given area type and excludes land that transitions to that area type during the same period. The area type should be specified using a coordinate of scalar coordinate variable with standard name area_type. There is also a standard name for gross_rate_of_increase_in_area_fraction." label="GrossRateOfDecreaseInAreaFraction" title="Gross Rate of Decrease in Area Fraction" uid="gross_rate_of_decrease_in_area_fraction" units="s-1"></item> … … 15359 15313 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. The land ice basal melt rate is the rate at which ice is lost per unit area at the base of the ice." label="LandIceBasalMeltRate" title="Land Ice Basal Melt Rate" uid="land_ice_basal_melt_rate" units="m s-1"></item> 15360 15314 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for peroxyacetyl nitrate, sometimes referred to as PAN, is CH3COO2NO2. The IUPAC name for peroxyacetyl_nitrate is nitroethaneperoxoate." label="MassConcentrationOfPeroxyacetylNitrateInAir" title="Mass Concentration of Peroxyacetyl Nitrate in Air" uid="mass_concentration_of_peroxyacetyl_nitrate_in_air" units="kg m-3"></item> 15315 <item description=""Content" indicates a quantity per unit area. "Miscellaneous living matter" means all those parts of plants that are not leaf, stem, root or other separately named components. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide." label="MiscellaneousLivingMatterMassContentOfCarbon" title="Miscellaneous Living Matter Mass Content of Carbon" uid="miscellaneous_living_matter_mass_content_of_carbon" units="kg m-2"></item> 15361 15316 <item description=""Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. "Productivity" means production per unit area. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="NetPrimaryMoleProductivityOfBiomassExpressedAsCarbonByDiazotrophs" title="Net Primary Mole Productivity of Biomass Expressed As Carbon by Diazotrophs" uid="net_primary_mole_productivity_of_biomass_expressed_as_carbon_by_diazotrophs" units="mol m-2 s-1"></item> 15317 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "tendency_of_X" means derivative of X with respect to time. Aromatic compounds in organic chemistry are compounds that contain at least one benzene ring of six carbon atoms joined by alternating single and double covalent bonds. The simplest aromatic compound is benzene itself. In standard names "aromatic_compounds" is the term used to describe the group of aromatic chemical species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names exist for some individual aromatic species, e.g. benzene and xylene." label="TendencyOfAtmosphereMassContentOfAromaticCompoundsDueToEmission" title="Tendency of Atmosphere Mass Content of Aromatic Compounds due to Emission" uid="tendency_of_atmosphere_mass_content_of_aromatic_compounds_due_to_emission" units="kg m-2 s-1"></item> 15362 15318 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Np" means the element "neptunium" and "236Np" is the isotope "neptunium-236" with a half-life of 9.17e-01 days." label="RadioactivityConcentrationOf236NpInAir" title="Radioactivity Concentration of 236Np in Air" uid="radioactivity_concentration_of_236Np_in_air" units="Bq m-3"></item> 15363 <item description="" Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "tendency_of_X" means derivative of X with respect to time. Aromatic compounds in organic chemistry are compounds that contain at least one benzene ring of six carbon atoms joined by alternating single and double covalent bonds. The simplest aromatic compound is benzene itself. In standard names "aromatic_compounds" is the term used to describe the group of aromatic chemical species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names exist for some individual aromatic species, e.g. benzene and xylene." label="TendencyOfAtmosphereMassContentOfAromaticCompoundsDueToEmission" title="Tendency of Atmosphere Mass Content of Aromatic Compounds due to Emission" uid="tendency_of_atmosphere_mass_content_of_aromatic_compounds_due_to_emission" units="kg m-2 s-1"></item>15319 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Np" means the element "neptunium" and "240mNp" is the metastable state of the isotope "neptunium-240" with a half-life of 5.08e-03 days." label="RadioactivityConcentrationOf240MnpInAir" title="Radioactivity Concentration of 240Mnp in Air" uid="radioactivity_concentration_of_240mNp_in_air" units="Bq m-3"></item> 15364 15320 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Dry deposition" is the sum of turbulent deposition and gravitational settling. "Oxidized nitrogen compounds" means all chemical species containing nitrogen atoms with an oxidation state greater than zero. Usually, particle bound and gaseous nitrogen compounds, such as nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), nitrate (NO3-), peroxynitric acid (HNO4), bromine nitrate (BrONO2), chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)), are included. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="TendencyOfAtmosphereMassContentOfOxidizedNitrogenCompoundsExpressedAsNitrogenDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Oxidized Nitrogen Compounds Expressed As Nitrogen due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_oxidized_nitrogen_compounds_expressed_as_nitrogen_due_to_dry_deposition" units="kg m-2 s-1"></item> 15365 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Np" means the element "neptunium" and "240mNp" is the metastable state of the isotope "neptunium-240" with a half-life of 5.08e-03 days." label="RadioactivityConcentrationOf240MnpInAir" title="Radioactivity Concentration of 240Mnp in Air" uid="radioactivity_concentration_of_240mNp_in_air" units="Bq m-3"></item>15366 15321 <item description="alias::tendency_of_atmosphere_mass_content_of_secondary_particulate_organic_matter_dry_aerosol_due_to_wet_deposition" label="TendencyOfAtmosphereMassContentOfSecondaryParticulateOrganicMatterDryAerosolParticlesDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Secondary Particulate Organic Matter Dry Aerosol Particles due to Wet Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_secondary_particulate_organic_matter_dry_aerosol_due_to_wet_deposition" units="kg m-2 s-1"></item> 15367 15322 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Autoconversion is the process of collision and coalescence which results in the formation of precipitation particles from cloud water droplets or ice crystals. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudLiquidWaterInAirDueToAutoconversion" title="Tendency of Mass Fraction of Stratiform Cloud Liquid Water in Air due to Autoconversion" uid="tendency_of_mass_fraction_of_stratiform_cloud_liquid_water_in_air_due_to_autoconversion" units="s-1"></item> … … 15407 15362 <item description="Radiative flux is the sum of shortwave and longwave radiative fluxes. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. Scattering of radiation is its deflection from its incident path without loss of energy. The volume scattering function is the fraction of incident radiative flux scattered into unit solid angle per unit path length. The (range of) direction(s) of scattering can be specified by a coordinate of scattering_angle." label="VolumeScatteringFunctionOfRadiativeFluxInSeaWater" title="Volume Scattering Function of Radiative Flux in Sea Water" uid="volume_scattering_function_of_radiative_flux_in_sea_water" units="m-1 sr-1"></item> 15408 15363 <item description="alias::tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_expressed_as_carbon_due_to_emission_from_energy_production_and_distribution" label="TendencyOfAtmosphereMassContentOfParticulateOrganicMatterDryAerosolParticlesExpressedAsCarbonDueToEmissionFromEnergyProductionAndDistribution" title="Tendency of Atmosphere Mass Content of Particulate Organic Matter Dry Aerosol Particles Expressed As Carbon due to Emission from Energy Production And Distribution [alias]" uid="tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_expressed_as_carbon_due_to_emission_from_energy_production_and_distribution" units="kg m-2 s-1"></item> 15409 <item description="alias::atmosphere_surface_drag_coefficient" label="SurfaceDragCoefficientInAir" title="Surface Drag Coefficient in Air [alias]" uid="atmosphere_surface_drag_coefficient" units="1"></item>15410 15364 <item description=""[horizontal_]divergence_of_X" means [horizontal] divergence of a vector X; if X does not have a vertical component then "horizontal" should be omitted. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)" label="DivergenceOfWind" title="Divergence of Wind" uid="divergence_of_wind" units="s-1"></item> 15411 15365 <item description=""Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="DownwardHeatFluxInSeaIce" title="Downward Heat Flux in Sea Ice" uid="downward_heat_flux_in_sea_ice" units="W m-2"></item> 15412 15366 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The chemical formula for the nitrate anion is NO3-." label="MassConcentrationOfNitrateDryAerosolParticlesInAir" title="Mass Concentration of Nitrate Dry Aerosol Particles in Air" uid="mass_concentration_of_nitrate_dry_aerosol_particles_in_air" units="kg m-3"></item> 15413 15367 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Oxygenated" means containing oxygen. "Hydrocarbon" means a compound containing hydrogen and carbon." label="MassConcentrationOfOxygenatedHydrocarbonsInAir" title="Mass Concentration of Oxygenated Hydrocarbons in Air" uid="mass_concentration_of_oxygenated_hydrocarbons_in_air" units="kg m-3"></item> 15368 <item description="The chemical formula for carbon dioxide is CO2. Mass fraction is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". A "tracer" is a quantity advected by a model to facilitate analysis of flow patterns." label="MassFractionOfCarbonDioxideTracerInAir" title="Mass Fraction of Carbon Dioxide Tracer in Air" uid="mass_fraction_of_carbon_dioxide_tracer_in_air" units="1"></item> 15414 15369 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceDownwardHeatFluxInSeaWater" title="Surface Downward Heat Flux in Sea Water" uid="surface_downward_heat_flux_in_sea_water" units="W m-2"></item> 15415 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Cs" means the element "cesium" and "135mCs" is the metastable state of the isotope "cesium-135" with a half-life of 3.68e-02 days." label="SurfaceRadioactivityContentOf135Mcs" title="Surface Radioactivity Content of 135Mcs" uid="surface_radioactivity_content_of_135mCs" units="Bq m-2"></item>15416 15370 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for formaldehyde is CH2O. The IUPAC name for formaldehyde is methanal. The "energy production and distribution" sector comprises fuel combustion activities related to energy industries and fugitive emissions from fuels. It may also include any not-classified or "other" combustion, which is commonly included in energy-related inventory data. "Energy production and distribution" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A1 and 1B as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfFormaldehydeDueToEmissionFromEnergyProductionAndDistribution" title="Tendency of Atmosphere Mass Content of Formaldehyde due to Emission from Energy Production And Distribution" uid="tendency_of_atmosphere_mass_content_of_formaldehyde_due_to_emission_from_energy_production_and_distribution" units="kg m-2 s-1"></item> 15417 15371 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The term "particulate_organic_matter_dry_aerosol" means all particulate organic matter dry aerosol except elemental carbon. It is the sum of primary_particulate_organic_matter_dry_aerosol and secondary_particulate_organic_matter_dry_aerosol. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Wet deposition" means deposition by precipitation. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfAtmosphereMassContentOfParticulateOrganicMatterDryAerosolParticlesExpressedAsCarbonDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Particulate Organic Matter Dry Aerosol Particles Expressed As Carbon due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_particles_expressed_as_carbon_due_to_wet_deposition" units="kg m-2 s-1"></item> 15372 <item description="alias::atmosphere_surface_drag_coefficient" label="SurfaceDragCoefficientInAir" title="Surface Drag Coefficient in Air [alias]" uid="atmosphere_surface_drag_coefficient" units="1"></item> 15418 15373 <item description="alias::mass_concentration_of_mercury_dry_aerosol_in_air" label="MassConcentrationOfMercuryDryAerosolParticlesInAir" title="Mass Concentration of Mercury Dry Aerosol Particles in Air [alias]" uid="mass_concentration_of_mercury_dry_aerosol_in_air" units="kg m-3"></item> 15374 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Cs" means the element "cesium" and "135mCs" is the metastable state of the isotope "cesium-135" with a half-life of 3.68e-02 days." label="SurfaceRadioactivityContentOf135Mcs" title="Surface Radioactivity Content of 135Mcs" uid="surface_radioactivity_content_of_135mCs" units="Bq m-2"></item> 15419 15375 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Se" means the element "selenium" and "81mSe" is the metastable state of the isotope "selenium-81" with a half-life of 3.97e-02 days." label="SurfaceRadioactivityContentOf81Mse" title="Surface Radioactivity Content of 81Mse" uid="surface_radioactivity_content_of_81mSe" units="Bq m-2"></item> 15420 15376 <item description="Upwelling radiation is radiation from below. It does not mean "net upward". Radiance is the radiative flux in a particular direction, per unit of solid angle. The direction towards which it is going must be specified, for instance with a coordinate of zenith_angle. If the radiation does not depend on direction, a standard name of isotropic radiance should be chosen instead. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength." label="UpwellingRadiancePerUnitWavelengthInAir" title="Upwelling Radiance Per Unit Wavelength in Air" uid="upwelling_radiance_per_unit_wavelength_in_air" units="W m-2 m-1 sr-1"></item> … … 15445 15401 <item description="A velocity is a vector quantity. "x" indicates a vector component along the grid x-axis, positive with increasing x." label="SeaWaterXVelocity" title="Sea Water X Velocity" uid="sea_water_x_velocity" units="m s-1"></item> 15446 15402 <item description="The surface called "surface" means the lower boundary of the atmosphere. Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level." label="SurfaceAltitude" title="Surface Altitude" uid="surface_altitude" units="m"></item> 15403 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Litter" is dead plant material in or above the soil. Heterotrophic respiration is respiration by heterotrophs ("consumers"), which are organisms (including animals and decomposers) that consume other organisms or dead organic material, rather than synthesising organic material from inorganic precursors using energy from the environment (especially sunlight) as autotrophs ("producers") do. Heterotrophic respiration goes on within both the soil and litter pools." label="SurfaceUpwardMassFluxOfCarbonDueToHeterotrophicRespirationInLitter" title="Surface Upward Mass Flux of Carbon due to Heterotrophic Respiration in Litter" uid="surface_upward_mass_flux_of_carbon_due_to_heterotrophic_respiration_in_litter" units="kg m-2 s-1"></item> 15447 15404 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group -COOH. In standard names "organic_acids" is the term used to describe the group of organic acid species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "agricultural waste burning" sector comprises field burning of agricultural residues. "Agricultural waste burning" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 4F as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfOrganicAcidsDueToEmissionFromAgriculturalWasteBurning" title="Tendency of Atmosphere Mass Content of Organic Acids due to Emission from Agricultural Waste Burning" uid="tendency_of_atmosphere_mass_content_of_organic_acids_due_to_emission_from_agricultural_waste_burning" units="kg m-2 s-1"></item> 15448 15405 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Inorganic bromine", sometimes referred to as Bry, describes a family of chemical species which result from the degradation of source gases containing bromine (halons, methyl bromide, VSLS) and natural inorganic bromine sources such as volcanoes, seasalt and other aerosols. "Inorganic bromine" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names that use the term "brox" are used for quantities that contain all inorganic bromine species except HBr and BrONO2." label="MassConcentrationOfInorganicBromineInAir" title="Mass Concentration of Inorganic Bromine in Air" uid="mass_concentration_of_inorganic_bromine_in_air" units="kg m-3"></item> … … 15458 15415 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). Atmosphere_Xward_stress is a stress which tends to accelerate the atmosphere in direction X." label="AtmosphereEastwardStressDueToGravityWaveDrag" title="Atmosphere Eastward Stress due to Gravity Wave Drag" uid="atmosphere_eastward_stress_due_to_gravity_wave_drag" units="Pa"></item> 15459 15416 <item description=""X_area" means the horizontal area occupied by X within the grid cell." label="AtmosphereMassPerUnitArea" title="Atmosphere Mass Per Unit Area" uid="atmosphere_mass_per_unit_area" units="kg m-2"></item> 15460 <item description=" alias::atmosphere_optical_thickness_due_to_ambient_aerosol" label="AtmosphereOpticalThicknessDueToAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_ambient_aerosol" units="1"></item>15417 <item description=""Content" indicates a quantity per unit area. Examples of "forestry and agricultural products" are paper, cardboard, furniture, timber for construction, biofuels and food for both humans and livestock. Models that simulate land use changes have one or more pools of carbon that represent these products in order to conserve carbon and allow its eventual release into the atmosphere, for example, when the products decompose in landfill sites." label="CarbonMassContentOfForestryAndAgriculturalProducts" title="Carbon Mass Content of Forestry And Agricultural Products" uid="carbon_mass_content_of_forestry_and_agricultural_products" units="kg m-2"></item> 15461 15418 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ge" means the element "germanium" and "77mGe" is the metastable state of the isotope "germanium-77" with a half-life of 6.27e-04 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf77MgeInAir" title="Integral Wrt Time of Radioactivity Concentration of 77Mge in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_77mGe_in_air" units="Bq s m-3"></item> 15462 15419 <item description="A phrase assuming_condition indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition. "longwave" means longwave radiation. "Upward" indicates a vector component which is positive when directed upward (negative downward). Net upward radiation is the difference between radiation from below (upwelling) and radiation from above (downwelling). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="NetUpwardLongwaveFluxInAirAssumingClearSky" title="Net Upward Longwave Flux in Air Assuming Clear Sky" uid="net_upward_longwave_flux_in_air_assuming_clear_sky" units="W m-2"></item> 15463 15420 <item description="The quantity with standard name temperature_flux_due_to_rainfall_expressed_as_heat_flux_into_sea_water is the heat energy carried by rainfall entering the sea at the sea surface. It is calculated relative to the heat that would be carried by rainfall entering the sea at zero degrees Celsius. It is calculated as the product QrainCpTrain, where Qrain is the mass flux of rainfall entering the sea (kg m-2 s-1), Cp is the specific heat capacity of water and Train is the temperature in degrees Celsius of the rain water entering the sea surface. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="TemperatureFluxDueToRainfallExpressedAsHeatFluxIntoSeaWater" title="Temperature Flux due to Rainfall Expressed As Heat Flux Into Sea Water" uid="temperature_flux_due_to_rainfall_expressed_as_heat_flux_into_sea_water" units="W m-2"></item> 15421 <item description="alias::atmosphere_optical_thickness_due_to_ambient_aerosol" label="AtmosphereOpticalThicknessDueToAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_ambient_aerosol" units="1"></item> 15464 15422 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. "Oxygenated" means containing oxygen. "Hydrocarbon" means a compound containing hydrogen and carbon." label="AtmosphereMassContentOfOxygenatedHydrocarbons" title="Atmosphere Mass Content of Oxygenated Hydrocarbons" uid="atmosphere_mass_content_of_oxygenated_hydrocarbons" units="kg m-2"></item> 15465 15423 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Tb" means the element "terbium" and "161Tb" is the isotope "terbium-161" with a half-life of 6.92e+00 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf161TbInAir" title="Integral Wrt Time of Radioactivity Concentration of 161Tb in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_161Tb_in_air" units="Bq s m-3"></item> … … 15628 15586 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for bromine chloride is BrCl." label="MassConcentrationOfBromineChlorideInAir" title="Mass Concentration of Bromine Chloride in Air" uid="mass_concentration_of_bromine_chloride_in_air" units="kg m-3"></item> 15629 15587 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for halo2402 is C2Br2F4. The IUPAC name for halon2402 is 1,2-dibromo-1,1,2,2-tetrafluoro-ethane." label="MoleConcentrationOfHalon2402InAir" title="Mole Concentration of Halon2402 in Air" uid="mole_concentration_of_halon2402_in_air" units="mol m-3"></item> 15588 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "C" means the element carbon and "14C" is the radioactive isotope "carbon-14", having six protons and eight neutrons and used in radiocarbon dating." label="SurfaceDownwardMassFluxOf14CDioxideAbioticAnalogueExpressedAsCarbon" title="Surface Downward Mass Flux of 14C Dioxide Abiotic Analogue Expressed As Carbon" uid="surface_downward_mass_flux_of_14C_dioxide_abiotic_analogue_expressed_as_carbon" units="kg m-2 s-1"></item> 15630 15589 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Ethers are a class of organic compounds that contain an ether group - an oxygen atom connected to two alkyl or aryl groups - of general formula R-O-R. In standard names "ethers" is the term used to describe the group of ether species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "savanna and grassland fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in non-forested areas. It excludes field burning of agricultural residues. "Savanna and grassland fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfEthersDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Ethers due to Emission from Savanna And Grassland Fires" uid="tendency_of_atmosphere_mass_content_of_ethers_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> 15631 15590 <item description="" label="AtmosphereHeatDiffusivity" title="Atmosphere Heat Diffusivity" uid="atmosphere_heat_diffusivity" units="m2 s-1"></item> … … 15634 15593 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ga" means the element "gallium" and "72Ga" is the isotope "gallium-72" with a half-life of 5.86e-01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf72GaInAir" title="Integral Wrt Time of Radioactivity Concentration of 72Ga in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_72Ga_in_air" units="Bq s m-3"></item> 15635 15594 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Nb" means the element "niobium" and "94Nb" is the isotope "niobium-94" with a half-life of 7.29e+06 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf94NbInAir" title="Integral Wrt Time of Radioactivity Concentration of 94Nb in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_94Nb_in_air" units="Bq s m-3"></item> 15636 <item description=" Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Carbon13 is a stable isotope of carbon having six protons and seven neutrons." label="MoleConcentrationOfDissolvedInorganicCarbon13InSeaWater" title="Mole Concentration of Dissolved Inorganic Carbon13 in Sea Water" uid="mole_concentration_of_dissolved_inorganic_carbon13_in_sea_water" units="mol m-3"></item>15595 <item description="alias::mole_concentration_of_dissolved_inorganic_carbon13_in_sea_water" label="MoleConcentrationOfDissolvedInorganic13CInSeaWater" title="Mole Concentration of Dissolved Inorganic 13C in Sea Water [alias]" uid="mole_concentration_of_dissolved_inorganic_carbon13_in_sea_water" units="mol m-3"></item> 15637 15596 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y." label="MoleFractionOfFormaldehydeInAir" title="Mole Fraction of Formaldehyde in Air" uid="mole_fraction_of_formaldehyde_in_air" units="1"></item> 15638 <item description="alias::moles_of_methyl_chloride_in_atmosphere" label="AtmosphereMolesOfMethylChloride" title="Atmosphere Moles of Methyl Chloride [alias]" uid="moles_of_methyl_chloride_in_atmosphere" units="mol"></item>15639 15597 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ba" means the element "barium" and "137mBa" is the metastable state of the isotope "barium-137" with a half-life of 1.77e-03 days." label="SurfaceRadioactivityContentOf137Mba" title="Surface Radioactivity Content of 137Mba" uid="surface_radioactivity_content_of_137mBa" units="Bq m-2"></item> 15640 15598 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. "Pm2p5 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Wet deposition" means deposition by precipitation. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfAtmosphereMassContentOfPm2P5DryAerosolParticlesDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Pm2P5 Dry Aerosol Particles due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_pm2p5_dry_aerosol_particles_due_to_wet_deposition" units="kg m-2 s-1"></item> 15599 <item description="alias::moles_of_methyl_chloride_in_atmosphere" label="AtmosphereMolesOfMethylChloride" title="Atmosphere Moles of Methyl Chloride [alias]" uid="moles_of_methyl_chloride_in_atmosphere" units="mol"></item> 15641 15600 <item description="The surface called "surface" means the lower boundary of the atmosphere. A phrase assuming_condition indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition. "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceUpwellingLongwaveFluxInAirAssumingClearSky" title="Surface Upwelling Longwave Flux in Air Assuming Clear Sky" uid="surface_upwelling_longwave_flux_in_air_assuming_clear_sky" units="W m-2"></item> 15642 15601 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Alkanes are saturated hydrocarbons, i.e. they do not contain any chemical double bonds. Alkanes contain only hydrogen and carbon combined in the general proportions C(n)H(2n+2); "alkanes" is the term used in standard names to describe the group of chemical species having this common structure that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Standard names exist for some individual alkane species, e.g., methane and ethane." label="AtmosphereMassContentOfAlkanes" title="Atmosphere Mass Content of Alkanes" uid="atmosphere_mass_content_of_alkanes" units="kg m-2"></item> … … 15764 15723 <item description="alias::tendency_of_atmosphere_mass_content_of_pm2p5_seasalt_dry_aerosol_particles_due_to_dry_deposition" label="TendencyOfAtmosphereMassContentOfPm2P5SeaSaltDryAerosolParticlesDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Pm2P5 Sea Salt Dry Aerosol Particles due to Dry Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_pm2p5_seasalt_dry_aerosol_particles_due_to_dry_deposition" units="kg m-2 s-1"></item> 15765 15724 <item description=""tendency_of_X" means derivative of X with respect to time. The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for the hydroperoxyl radical is HO2. In chemistry, a 'radical' is a highly reactive, and therefore shortlived, species." label="TendencyOfAtmosphereMolesOfHydroperoxylRadical" title="Tendency of Atmosphere Moles of Hydroperoxyl Radical" uid="tendency_of_atmosphere_moles_of_hydroperoxyl_radical" units="mol s-1"></item> 15766 <item description="alias::concentration_of_chlorophyll_in_sea_water" label="MassConcentrationOfChlorophyllInSeaWater" title="Mass Concentration of Chlorophyll in Sea Water [alias]" uid="concentration_of_chlorophyll_in_sea_water" units="kg m-3"></item>15767 15725 <item description="Downwelling radiation is radiation from above. It does not mean "net downward". Photon radiance is the photon flux in a particular direction, per unit of solid angle. The direction from which it is coming must be specified, for instance with a coordinate of zenith_angle. If the radiation does not depend on direction, a standard name of isotropic radiance should be chosen instead. A photon flux is specified in terms of numbers of photons expressed in moles. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength." label="DownwellingPhotonRadiancePerUnitWavelengthInSeaWater" title="Downwelling Photon Radiance Per Unit Wavelength in Sea Water" uid="downwelling_photon_radiance_per_unit_wavelength_in_sea_water" units="mol m-2 s-1 m-1 sr-1"></item> 15768 15726 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. The chemical formula of CFC11 is CFCl3. The IUPAC name for CFC11 is trichloro-fluoro-methane." label="MoleFractionOfCfc11InAir" title="Mole Fraction of Cfc11 in Air" uid="mole_fraction_of_cfc11_in_air" units="1"></item> 15769 15727 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "I" means the element "iodine" and "133I" is the isotope "iodine-133" with a half-life of 8.71e-01 days." label="RadioactivityConcentrationOf133IInAir" title="Radioactivity Concentration of 133I in Air" uid="radioactivity_concentration_of_133I_in_air" units="Bq m-3"></item> 15728 <item description="X"_binary_mask" has 1 where condition X is met, 0 elsewhere. 1 = sea, 0 = land." label="SeaBinaryMask" title="Sea Binary Mask" uid="sea_binary_mask" units="1"></item> 15770 15729 <item description="Transport across_line means that which crosses a particular line on the Earth's surface; formally this means the integral along the line of the normal component of the transport." label="SeaIceTransportAcrossLine" title="Sea Ice Transport Across Line" uid="sea_ice_transport_across_line" units="kg s-1"></item> 15771 15730 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ru" means the element "ruthenium" and "105Ru" is the isotope "ruthenium-105" with a half-life of 1.85e-01 days." label="SurfaceRadioactivityContentOf105Ru" title="Surface Radioactivity Content of 105Ru" uid="surface_radioactivity_content_of_105Ru" units="Bq m-2"></item> … … 15773 15732 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Eu" means the element "europium" and "157Eu" is the isotope "europium-157" with a half-life of 6.32e-01 days." label="SurfaceRadioactivityContentOf157Eu" title="Surface Radioactivity Content of 157Eu" uid="surface_radioactivity_content_of_157Eu" units="Bq m-2"></item> 15774 15733 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for propene is C3H6. Propene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species. The "energy production and distribution" sector comprises fuel combustion activities related to energy industries and fugitive emissions from fuels. It may also include any not-classified or "other" combustion, which is commonly included in energy-related inventory data. "Energy production and distribution" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A1 and 1B as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfPropeneDueToEmissionFromEnergyProductionAndDistribution" title="Tendency of Atmosphere Mass Content of Propene due to Emission from Energy Production And Distribution" uid="tendency_of_atmosphere_mass_content_of_propene_due_to_emission_from_energy_production_and_distribution" units="kg m-2 s-1"></item> 15734 <item description="alias::concentration_of_chlorophyll_in_sea_water" label="MassConcentrationOfChlorophyllInSeaWater" title="Mass Concentration of Chlorophyll in Sea Water [alias]" uid="concentration_of_chlorophyll_in_sea_water" units="kg m-3"></item> 15775 15735 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Rn" means the element "radon" and "223Rn" is the isotope "radon-223" with a half-life of 2.98e-02 days." label="SurfaceRadioactivityContentOf223Rn" title="Surface Radioactivity Content of 223Rn" uid="surface_radioactivity_content_of_223Rn" units="Bq m-2"></item> 15776 15736 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "shortwave" means shortwave radiation. Air temperature is the bulk temperature of the air, not the surface (skin) temperature." label="TendencyOfAirTemperatureDueToShortwaveHeating" title="Tendency of Air Temperature due to Shortwave Heating" uid="tendency_of_air_temperature_due_to_shortwave_heating" units="K s-1"></item> … … 15796 15756 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Wet deposition" means deposition by precipitation. "Oxidized nitrogen compounds" means all chemical species containing nitrogen atoms with an oxidation state greater than zero. Usually, particle bound and gaseous nitrogen compounds, such as nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), nitrate (NO3-), peroxynitric acid (HNO4), bromine nitrate (BrONO2), chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)), are included. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="TendencyOfAtmosphereMassContentOfOxidizedNitrogenCompoundsExpressedAsNitrogenDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Oxidized Nitrogen Compounds Expressed As Nitrogen due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_oxidized_nitrogen_compounds_expressed_as_nitrogen_due_to_wet_deposition" units="kg m-2 s-1"></item> 15797 15757 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition" is the sum of turbulent deposition and gravitational settling. The chemical formula for peroxyacetyl nitrate, sometimes referred to as PAN, is CH3COO2NO2. The IUPAC name for peroxyacetyl_nitrate is nitroethaneperoxoate." label="TendencyOfAtmosphereMassContentOfPeroxyacetylNitrateDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Peroxyacetyl Nitrate due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_peroxyacetyl_nitrate_due_to_dry_deposition" units="kg m-2 s-1"></item> 15758 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. The phrase "tendency_of_X" means derivative of X with respect to time. The surface called "surface" means the lower boundary of the atmosphere. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Mass balance" means the net rate at which ice is added. A negative value means loss of ice. The tendency in ice mass due to the surface mass balance is the spatial integral of the quantity with standard name land_ice_surface_specific_mass_balance_flux. The horizontal domain over which the quantity is described by the associated coordinate variables and coordinate bounds or by a string valued coordinate variable or scalar coordinate variable with a standard name of "region"." label="TendencyOfLandIceMassDueToSurfaceMassBalance" title="Tendency of Land Ice Mass due to Surface Mass Balance" uid="tendency_of_land_ice_mass_due_to_surface_mass_balance" units="kg s-1"></item> 15798 15759 <item description="alias::tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_melting_to_cloud_liquid" label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToMeltingToCloudLiquidWater" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Melting to Cloud Liquid Water [alias]" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_melting_to_cloud_liquid" units="s-1"></item> 15799 15760 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for the hydroxyl radical is OH. In chemistry, a 'radical' is a highly reactive, and therefore shortlived, species." label="MoleConcentrationOfHydroxylRadicalInAir" title="Mole Concentration of Hydroxyl Radical in Air" uid="mole_concentration_of_hydroxyl_radical_in_air" units="mol m-3"></item> 15800 15761 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Sr" means the element "strontium" and "92Sr" is the isotope "strontium-92" with a half-life of 1.13e-01 days." label="SurfaceRadioactivityContentOf92Sr" title="Surface Radioactivity Content of 92Sr" uid="surface_radioactivity_content_of_92Sr" units="Bq m-2"></item> 15762 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. Plants which photosynthesise are autotrophs i.e. "producers" of the biomass which they respire from inorganic precursors using sunlight for energy. The stem of a plant is the axis that bears buds and shoots with leaves and, at its basal end, roots. Its function is to carry water and nutrients. Examples include the stalk of a plant or the main trunk of a tree." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationInStems" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration in Stems" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_stems" units="kg m-2 s-1"></item> 15801 15763 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for nitrogen monoxide is NO. The "land transport" sector includes fuel combustion activities related to road transportation, railways and other transportation. "Land transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A3b, 1A3c and 1A3e as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfNitrogenMonoxideDueToEmissionFromLandTransport" title="Tendency of Atmosphere Mass Content of Nitrogen Monoxide due to Emission from Land Transport" uid="tendency_of_atmosphere_mass_content_of_nitrogen_monoxide_due_to_emission_from_land_transport" units="kg m-2 s-1"></item> 15802 15764 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula of CFC113a CCl3CF3. The IUPAC name for CFC113a is 1,1,1-trichloro-2,2,2-trifluoro-ethane." label="AtmosphereMassContentOfCfc113A" title="Atmosphere Mass Content of Cfc113A" uid="atmosphere_mass_content_of_cfc113a" units="kg m-2"></item> … … 15939 15901 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for acetic_acid is CH3COOH. The IUPAC name for acetic acid is ethanoic acid." label="MassConcentrationOfAceticAcidInAir" title="Mass Concentration of Acetic Acid in Air" uid="mass_concentration_of_acetic_acid_in_air" units="kg m-3"></item> 15940 15902 <item description="The surface called "surface" means the lower boundary of the atmosphere. "y" indicates a vector component along the grid y-axis, positive with increasing y. "Downward" indicates a vector component which is positive when directed downward (negative upward)." label="SurfaceDownwardYStress" title="Surface Downward Y Stress" uid="surface_downward_y_stress" units="Pa"></item> 15903 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for methane is CH4. The mass is the total mass of the molecules. The phrase "tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season. The precise conditions under which wetlands produce and consume methane can vary between models." label="SurfaceUpwardMassFluxOfMethaneDueToEmissionFromWetlandBiologicalProduction" title="Surface Upward Mass Flux of Methane due to Emission from Wetland Biological Production" uid="surface_upward_mass_flux_of_methane_due_to_emission_from_wetland_biological_production" units="kg m-2 s-1"></item> 15941 15904 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "In" means the element "indium" and "119mIn" is the metastable state of the isotope "indium-119" with a half-life of 1.25e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf119MinInAir" title="Integral Wrt Time of Radioactivity Concentration of 119Min in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_119mIn_in_air" units="Bq s m-3"></item> 15942 15905 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Am" means the element "americium" and "241Am" is the isotope "americium-241" with a half-life of 1.67e+05 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf241AmInAir" title="Integral Wrt Time of Radioactivity Concentration of 241Am in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_241Am_in_air" units="Bq s m-3"></item> … … 15961 15924 <item description=""tendency_of_X" means derivative of X with respect to time. "X_area_fraction" means the fraction of horizontal area occupied by X. Sea ice area fraction is area of the sea surface occupied by sea ice. It is also called "sea ice concentration". "Sea ice thermodynamics" refers to the addition or subtraction of mass due to surface and basal fluxes." label="TendencyOfSeaIceAreaFractionDueToThermodynamics" title="Tendency of Sea Ice Area Fraction due to Thermodynamics" uid="tendency_of_sea_ice_area_fraction_due_to_thermodynamics" units="s-1"></item> 15962 15925 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for CFC12 is CF2Cl2. The IUPAC name for CFC12 is dichloro-difluoro-methane." label="AtmosphereMassContentOfCfc12" title="Atmosphere Mass Content of Cfc12" uid="atmosphere_mass_content_of_cfc12" units="kg m-2"></item> 15926 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. Plants which photosynthesise are autotrophs i.e. "producers" of the biomass which they respire from inorganic precursors using sunlight for energy." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationInLeaves" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration in Leaves" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_leaves" units="kg m-2 s-1"></item> 15963 15927 <item description="alias::surface_upwelling_spectral_radiative_flux_in_air" label="SurfaceUpwellingRadiativeFluxPerUnitWavelengthInAir" title="Surface Upwelling Radiative Flux Per Unit Wavelength in Air [alias]" uid="surface_upwelling_spectral_radiative_flux_in_air" units="W m-2 m-1"></item> 15964 15928 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. Sublimation is the conversion of solid into vapor. Deposition is the opposite of sublimation, i.e. it is the conversion of vapor into solid. Deposition is distinct from the processes of dry deposition and wet deposition of atmospheric aerosol particles, which are referred to in some standard names. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMassFractionOfStratiformCloudIceInAirDueToDepositionAndSublimation" title="Tendency of Mass Fraction of Stratiform Cloud Ice in Air due to Deposition And Sublimation" uid="tendency_of_mass_fraction_of_stratiform_cloud_ice_in_air_due_to_deposition_and_sublimation" units="s-1"></item> … … 15969 15933 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pa" means the element "protactinium" and "234mPa" is the metastable state of the isotope "protactinium-234" with a half-life of 8.13e-04 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf234MpaInAir" title="Integral Wrt Time of Radioactivity Concentration of 234Mpa in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_234mPa_in_air" units="Bq s m-3"></item> 15970 15934 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "H" means the element "hydrogen" and "3H" is the isotope "hydrogen-3" with a half-life of 4.51e+03 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf3HInAir" title="Integral Wrt Time of Radioactivity Concentration of 3H in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_3H_in_air" units="Bq s m-3"></item> 15935 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. "Litter" is dead plant material in or above the soil." label="NitrogenMassFluxIntoSoilFromLitter" title="Nitrogen Mass Flux Into Soil from Litter" uid="nitrogen_mass_flux_into_soil_from_litter" units="kg m-2 s-1"></item> 15936 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including "content_of_soil_layer" are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Inorganic nitrogen" describes a family of chemical species which, in soil, usually consists of nitrate and ammonium which act as nitrogen nutrients. The quantity with standard name soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen is the sum of the quantities with standard names soil_mass_content_of_inorganic_ammonium_expressed_as_nitrogen and soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen." label="SoilMassContentOfInorganicNitrogenExpressedAsNitrogen" title="Soil Mass Content of Inorganic Nitrogen Expressed As Nitrogen" uid="soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen" units="kg m-2"></item> 15971 15937 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "In" means the element "indium" and "115In" is the isotope "indium-115" with a half-life of 1.86e+18 days." label="RadioactivityConcentrationOf115InInAir" title="Radioactivity Concentration of 115In in Air" uid="radioactivity_concentration_of_115In_in_air" units="Bq m-3"></item> 15972 15938 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pr" means the element "praseodymium" and "144mPr" is the metastable state of the isotope "praseodymium-144" with a half-life of 4.98e-03 days." label="RadioactivityConcentrationOf144MprInAir" title="Radioactivity Concentration of 144Mpr in Air" uid="radioactivity_concentration_of_144mPr_in_air" units="Bq m-3"></item> 15973 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including "content_of_soil_layer" are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Inorganic nitrogen" describes a family of chemical species which, in soil, usually consists of nitrate and ammonium which act as nitrogen nutrients. The quantity with standard name soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen is the sum of the quantities with standard names soil_mass_content_of_inorganic_ammonium_expressed_as_nitrogen and soil_mass_content_of_inorganic_nitrate_expressed_as_nitrogen." label="SoilMassContentOfInorganicNitrogenExpressedAsNitrogen" title="Soil Mass Content of Inorganic Nitrogen Expressed As Nitrogen" uid="soil_mass_content_of_inorganic_nitrogen_expressed_as_nitrogen" units="kg m-2"></item>15974 15939 <item description="The phrase "cloud_top" refers to the top of the highest cloud. Convective cloud is that produced by the convection schemes in an atmosphere model. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation." label="AirPressureAtConvectiveCloudTop" title="Air Pressure At Convective Cloud Top" uid="air_pressure_at_convective_cloud_top" units="Pa"></item> 15975 15940 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Po" means the element "polonium" and "214Po" is the isotope "polonium-214" with a half-life of 1.90e-09 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf214PoInAir" title="Integral Wrt Time of Radioactivity Concentration of 214Po in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_214Po_in_air" units="Bq s m-3"></item> … … 15985 15950 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for methyl bromide is CH3Br. The IUPAC name for methyl bromide is bromomethane." label="MassConcentrationOfMethylBromideInAir" title="Mass Concentration of Methyl Bromide in Air" uid="mass_concentration_of_methyl_bromide_in_air" units="kg m-3"></item> 15986 15951 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "nmvoc" means non methane volatile organic compounds; "nmvoc" is the term used in standard names to describe the group of chemical species having this classification that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute." label="MassConcentrationOfNmvocExpressedAsCarbonInAir" title="Mass Concentration of Nmvoc Expressed As Carbon in Air" uid="mass_concentration_of_nmvoc_expressed_as_carbon_in_air" units="kg m-3"></item> 15987 <item description=" Mass fraction is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The chemical formula for methanesulfonic acid is CH3SO3H." label="MassFractionOfMethanesulfonicAcidDryAerosolParticlesInAir" title="Mass Fraction of Methanesulfonic Acid Dry Aerosol Particles in Air" uid="mass_fraction_of_methanesulfonic_acid_dry_aerosol_particles_in_air" units="1"></item>15952 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. "Vegetation" means any living plants e.g. trees, shrubs, grass. "Litter" is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between "fine" and "coarse" is model dependent. The sum of the quantities with standard names mass_flux_of_carbon_into_litter_from_vegetation_due_to_mortality and mass_flux_of_carbon_into_litter_from_vegetation_due_to_senescence is mass_flux_of_carbon_into_litter_from_vegetation." label="MassFluxOfCarbonIntoLitterFromVegetation" title="Mass Flux of Carbon Into Litter from Vegetation" uid="mass_flux_of_carbon_into_litter_from_vegetation" units="kg m-2 s-1"></item> 15988 15953 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. The chemical formula of nitrous oxide is N2O." label="MoleFractionOfNitrousOxideInAir" title="Mole Fraction of Nitrous Oxide in Air" uid="mole_fraction_of_nitrous_oxide_in_air" units="1"></item> 15989 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. "Downward" indicates a vector component which is positive when directed downward (negative upward). The surface water flux is the result of precipitation and evaporation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceDownwardWaterFlux" title="Surface Downward Water Flux" uid="surface_downward_water_flux" units="kg m-2 s-1"></item>15990 15954 <item description="The surface called "surface" means the lower boundary of the atmosphere. "specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air." label="SurfaceSpecificHumidity" title="Surface Specific Humidity" uid="surface_specific_humidity" units="1"></item> 15991 15955 <item description="The surface called "surface" means the lower boundary of the atmosphere. "anomaly" means difference from climatology. The surface temperature is the (skin) temperature at the interface, not the bulk temperature of the medium above or below." label="SurfaceTemperatureAnomaly" title="Surface Temperature Anomaly" uid="surface_temperature_anomaly" units="K"></item> 15992 15956 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "tendency_of_X" means derivative of X with respect to time. The chemical formula for the sulfate anion is SO4(2-)." label="TendencyOfAtmosphereMassContentOfSulfateDryAerosolParticlesDueToEmission" title="Tendency of Atmosphere Mass Content of Sulfate Dry Aerosol Particles due to Emission" uid="tendency_of_atmosphere_mass_content_of_sulfate_dry_aerosol_particles_due_to_emission" units="kg m-2 s-1"></item> 15957 <item description="Mass fraction is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The chemical formula for methanesulfonic acid is CH3SO3H." label="MassFractionOfMethanesulfonicAcidDryAerosolParticlesInAir" title="Mass Fraction of Methanesulfonic Acid Dry Aerosol Particles in Air" uid="mass_fraction_of_methanesulfonic_acid_dry_aerosol_particles_in_air" units="1"></item> 15958 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. "Downward" indicates a vector component which is positive when directed downward (negative upward). The surface water flux is the result of precipitation and evaporation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceDownwardWaterFlux" title="Surface Downward Water Flux" uid="surface_downward_water_flux" units="kg m-2 s-1"></item> 15993 15959 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same." label="TendencyOfSeaWaterConservativeTemperatureExpressedAsHeatContentDueToParameterizedMesoscaleEddyAdvection" title="Tendency of Sea Water Conservative Temperature Expressed As Heat Content due to Parameterized Mesoscale Eddy Advection" uid="tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_eddy_advection" units="W m-2"></item> 15994 15960 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical symbol for mercury is Hg." label="AtmosphereMassContentOfGaseousElementalMercury" title="Atmosphere Mass Content of Gaseous Elemental Mercury" uid="atmosphere_mass_content_of_gaseous_elemental_mercury" units="kg m-2"></item> … … 16015 15981 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Potential energy is the sum of the gravitational potential energy relative to the geoid and the centripetal potential energy. (The geopotential is the specific potential energy.)" label="TendencyOfPotentialEnergyContentOfOceanLayerDueToConvection" title="Tendency of Potential Energy Content of Ocean Layer due to Convection" uid="tendency_of_potential_energy_content_of_ocean_layer_due_to_convection" units="W m-2"></item> 16016 15982 <item description="The angle of incidence is that between the direction of approach of a beam of radiation toward a surface and the normal to that surface." label="AngleOfIncidence" title="Angle of Incidence" uid="angle_of_incidence" units="degree"></item> 16017 <item description="alias::atmosphere_optical_thickness_due_to_water_in_ambient_aerosol" label="AtmosphereOpticalThicknessDueToWaterInAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Water in Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_water_in_ambient_aerosol" units="1"></item>16018 15983 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Po" means the element "polonium" and "211Po" is the isotope "polonium-211" with a half-life of 6.03e-06 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf211PoInAir" title="Integral Wrt Time of Radioactivity Concentration of 211Po in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_211Po_in_air" units="Bq s m-3"></item> 16019 15984 <item description="'Mass concentration' means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B containedin A, neglecting all other chemical constituents of A. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms. Diatoms are single-celled phytoplankton with an external skeleton made of silica. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis." label="MassConcentrationOfDiatomsExpressedAsChlorophyllInSeaWater" title="Mass Concentration of Diatoms Expressed As Chlorophyll in Sea Water" uid="mass_concentration_of_diatoms_expressed_as_chlorophyll_in_sea_water" units="kg m-3"></item> 16020 15985 <item description="moles_of_X_per_unit_mass_inY is also called "molality" of X in Y, where X is a material constituent of Y." label="MolesOfNitrateAndNitritePerUnitMassInSeaWater" title="Moles of Nitrate And Nitrite Per Unit Mass in Sea Water" uid="moles_of_nitrate_and_nitrite_per_unit_mass_in_sea_water" units="mol kg-1"></item> 15986 <item description=""Number concentration" means the number of particles or other specified objects per unit volume.The phrase "convective_liquid_water_cloud_top" refers to the top of the highest convective liquid water cloud. Convective cloud is that produced by the convection schemes in an atmosphere model." label="NumberConcentrationOfConvectiveCloudLiquidWaterParticleAtConvectiveLiquidWaterCloudTop" title="Number Concentration of Convective Cloud Liquid Water Particle At Convective Liquid Water Cloud Top" uid="number_concentration_of_convective_cloud_liquid_water_particle_at_convective_liquid_water_cloud_top" units="m-3"></item> 16021 15987 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pb" means the element "lead" and "213Pb" is the isotope "lead-213" with a half-life of 6.92e-03 days." label="RadioactivityConcentrationOf213PbInAir" title="Radioactivity Concentration of 213Pb in Air" uid="radioactivity_concentration_of_213Pb_in_air" units="Bq m-3"></item> 16022 15988 <item description="Sigma-t of sea water is the density of water at atmospheric pressure (i.e. the surface) having the same temperature and salinity, minus 1000 kg m-3. Note that sea water sigma is not the same quantity as the dimensionless ocean sigma coordinate (see Appendix D of the CF convention), for which there is another standard name." label="SeaWaterSigmaT" title="Sea Water Sigma T" uid="sea_water_sigma_t" units="kg m-3"></item> … … 16024 15990 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula of carbon monoxide is CO. The "industrial processes and combustion" sector comprises fuel combustion activities related to manufacturing industries and construction, industrial processes related to mineral products, the chemical industry, metal production, the production of pulp, paper, food and drink, and non-energy industry use of lubricants and waxes. It may also include any not-classified or "other" combustion, which is commonly included in industry-related inventory data. "Industrial processes and combustion" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A2, 2A, 2B, 2C, 2D and 2G as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfCarbonMonoxideDueToEmissionFromIndustrialProcessesAndCombustion" title="Tendency of Atmosphere Mass Content of Carbon Monoxide due to Emission from Industrial Processes And Combustion" uid="tendency_of_atmosphere_mass_content_of_carbon_monoxide_due_to_emission_from_industrial_processes_and_combustion" units="kg m-2 s-1"></item> 16025 15991 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for nitrogen monoxide is NO. The "maritime transport" sector includes fuel combustion activities related to maritime transport. "Maritime transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 1A3d as defined in the 2006 IPCC guidelines for national greenhouse gas Inventories"." label="TendencyOfAtmosphereMassContentOfNitrogenMonoxideDueToEmissionFromMaritimeTransport" title="Tendency of Atmosphere Mass Content of Nitrogen Monoxide due to Emission from Maritime Transport" uid="tendency_of_atmosphere_mass_content_of_nitrogen_monoxide_due_to_emission_from_maritime_transport" units="kg m-2 s-1"></item> 15992 <item description="alias::atmosphere_optical_thickness_due_to_water_in_ambient_aerosol" label="AtmosphereOpticalThicknessDueToWaterInAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Water in Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_water_in_ambient_aerosol" units="1"></item> 16026 15993 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for propane is C3H8. Propane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species. The "industrial processes and combustion" sector comprises fuel combustion activities related to manufacturing industries and construction, industrial processes related to mineral products, the chemical industry, metal production, the production of pulp, paper, food and drink, and non-energy industry use of lubricants and waxes. It may also include any not-classified or "other" combustion, which is commonly included in industry-related inventory data. "Industrial processes and combustion" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A2, 2A, 2B, 2C, 2D and 2G as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfPropaneDueToEmissionFromIndustrialProcessesAndCombustion" title="Tendency of Atmosphere Mass Content of Propane due to Emission from Industrial Processes And Combustion" uid="tendency_of_atmosphere_mass_content_of_propane_due_to_emission_from_industrial_processes_and_combustion" units="kg m-2 s-1"></item> 16027 <item description=" "Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. "Soil carbon" is the organic matter present in soil quantified by the mass of carbon it contains. Soil carbon is returned to the atmosphere as the organic matter decays. The decay process takes varying amounts of time depending on the composition of the organic matter, the temperature and the availability of moisture. A carbon "soil pool" means the carbon contained in organic matter which has a characteristic period over which it decays and releases carbon into the atmosphere. "Fast soil pool" refers to the decay of organic matter in soil with a characteristic period of less than ten years under reference climate conditions of a temperature of 20 degrees Celsius and no water limitations." label="FastSoilPoolCarbonContent" title="Fast Soil Pool Carbon Content" uid="fast_soil_pool_carbon_content" units="kg m-2"></item>15994 <item description="alias::fast_soil_pool_carbon_content" label="FastSoilPoolMassContentOfCarbon" title="Fast Soil Pool Mass Content of Carbon [alias]" uid="fast_soil_pool_carbon_content" units="kg m-2"></item> 16028 15995 <item description="Mass fraction is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. "Pm2p5 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. The phrase "sea_salt_cation" is the term used in standard names to describe collectively the group of cationic species that occur in sea salt. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Sea salt cations are mainly sodium (Na+), but also include potassium (K+), magnesium (Mg2+), calcium (Ca2+) and rarer cations. Where possible, the data variable should be accompanied by a complete description of the ions represented, for example, by using a comment attribute." label="MassFractionOfPm2P5SeaSaltDryAerosolParticlesExpressedAsCationsInAir" title="Mass Fraction of Pm2P5 Sea Salt Dry Aerosol Particles Expressed As Cations in Air" uid="mass_fraction_of_pm2p5_sea_salt_dry_aerosol_particles_expressed_as_cations_in_air" units="1"></item> 16029 15996 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Mo" means the element "molybdenum" and "102Mo" is the isotope "molybdenum-102" with a half-life of 7.71e-03 days." label="RadioactivityConcentrationOf102MoInAir" title="Radioactivity Concentration of 102Mo in Air" uid="radioactivity_concentration_of_102Mo_in_air" units="Bq m-3"></item> … … 16178 16145 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for nitrous acid is HNO2." label="MoleConcentrationOfNitrousAcidInAir" title="Mole Concentration of Nitrous Acid in Air" uid="mole_concentration_of_nitrous_acid_in_air" units="mol m-3"></item> 16179 16146 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. The chemical formula for nitric acid is HNO3. Nitric acid trihydrate, sometimes referred to as NAT, is a stable crystalline substance consisting of three molecules of water to one molecule of nitric acid." label="MoleFractionOfNitricAcidTrihydrateAmbientAerosolParticlesInAir" title="Mole Fraction of Nitric Acid Trihydrate Ambient Aerosol Particles in Air" uid="mole_fraction_of_nitric_acid_trihydrate_ambient_aerosol_particles_in_air" units="1"></item> 16180 <item description=" alias::surface_geostrophic_sea_water_y_velocity_assuming_sea_level_for_geoid" label="SurfaceGeostrophicSeaWaterYVelocityAssumingMeanSeaLevelForGeoid" title="Surface Geostrophic Sea Water Y Velocity Assuming Mean Sea Level For Geoid [alias]" uid="surface_geostrophic_sea_water_y_velocity_assuming_sea_level_for_geoid" units="ms-1"></item>16147 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. "Vegetation" means any living plants e.g. trees, shrubs, grass. "Litter" is dead plant material in or above the soil." label="NitrogenMassFluxIntoSoilFromVegetationExcludingLitter" title="Nitrogen Mass Flux Into Soil from Vegetation Excluding Litter" uid="nitrogen_mass_flux_into_soil_from_vegetation_excluding_litter" units="kg m-2 s-1"></item> 16181 16148 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for ethyne is HC2H. Ethyne is the IUPAC name for this species, which is also commonly known as acetylene. The "maritime transport" sector includes fuel combustion activities related to maritime transport. "Maritime transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 1A3d as defined in the 2006 IPCC guidelines for national greenhouse gas Inventories"." label="TendencyOfAtmosphereMassContentOfEthyneDueToEmissionFromMaritimeTransport" title="Tendency of Atmosphere Mass Content of Ethyne due to Emission from Maritime Transport" uid="tendency_of_atmosphere_mass_content_of_ethyne_due_to_emission_from_maritime_transport" units="kg m-2 s-1"></item> 16182 16149 <item description=""tendency_of_X" means derivative of X with respect to time. The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere,i.e. summed over the atmospheric column and over the entire globe. The chemical formula ofCFC114 is CClF2CClF2. The IUPAC name for CFC114 is 1,2-dichloro-1,1,2,2-tetrafluoro-ethane." label="TendencyOfAtmosphereMolesOfCfc114" title="Tendency of Atmosphere Moles of Cfc114" uid="tendency_of_atmosphere_moles_of_cfc114" units="mol s-1"></item> 16183 16150 <item description="The surface called "surface" means the lower boundary of the atmosphere. "tendency_of_X" means derivative of X with respect to time. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation." label="TendencyOfSurfaceAirPressure" title="Tendency of Surface Air Pressure" uid="tendency_of_surface_air_pressure" units="Pa s-1"></item> 16151 <item description="alias::surface_geostrophic_sea_water_y_velocity_assuming_sea_level_for_geoid" label="SurfaceGeostrophicSeaWaterYVelocityAssumingMeanSeaLevelForGeoid" title="Surface Geostrophic Sea Water Y Velocity Assuming Mean Sea Level For Geoid [alias]" uid="surface_geostrophic_sea_water_y_velocity_assuming_sea_level_for_geoid" units="m s-1"></item> 16184 16152 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pd" means the element "palladium" and "107mPd" is the metastable state of the isotope "palladium-107" with a half-life of 2.47e-04 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf107MpdInAir" title="Integral Wrt Time of Radioactivity Concentration of 107Mpd in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_107mPd_in_air" units="Bq s m-3"></item> 16185 16153 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. A velocity is a vector quantity. "x" indicates a vector component along the grid x-axis, positive with increasing x. The surface called "surface" means the lower boundary of the atmosphere." label="LandIceSurfaceXVelocity" title="Land Ice Surface X Velocity" uid="land_ice_surface_x_velocity" units="m s-1"></item> … … 16203 16171 <item description="'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A." label="MoleConcentrationOfParticulateOrganicMatterExpressedAsIronInSeaWater" title="Mole Concentration of Particulate Organic Matter Expressed As Iron in Sea Water" uid="mole_concentration_of_particulate_organic_matter_expressed_as_iron_in_sea_water" units="mol m-3"></item> 16204 16172 <item description="alias::mole_fraction_of_o3_in_air" label="MoleFractionOfOzoneInAir" title="Mole Fraction of Ozone in Air [alias]" uid="mole_fraction_of_o3_in_air" units="1"></item> 16173 <item description="The quantity with standard name sea_water_redistributed_potential_temperature is a passive tracer in an ocean model which is subject to an externally imposed perturbative surface heat flux. The passive tracer is initialised to the potential temperature in the control climate before the perturbation is imposed. Its surface flux is the heat flux from the atmosphere, not including the imposed perturbation, and is converted to a passive tracer increment as if it were being added to potential temperature. The passive tracer is transported within the ocean as if it were potential temperature. The passive tracer records redistributed heat, as described for the CMIP6 FAFMIP experiment (doi:10.5194/gmd-9-3993-2016), following earlier ideas. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure." label="SeaWaterRedistributedPotentialTemperature" title="Sea Water Redistributed Potential Temperature" uid="sea_water_redistributed_potential_temperature" units="degree_C"></item> 16205 16174 <item description=""specific" means per unit mass. Dry energy is the sum of dry static energy and kinetic energy. Dry static energy is the sum of enthalpy and potential energy (itself the sum of gravitational and centripetal potential energy). Enthalpy can be written either as (1) CpT, where Cp is heat capacity at constant pressure, T is absolute temperature, or (2) U+pV, where U is internal energy, p is pressure and V is volume." label="SpecificDryEnergyOfAir" title="Specific Dry Energy of Air" uid="specific_dry_energy_of_air" units="m2 s-2"></item> 16206 16175 <item description="alias::station_wmo_id" label="PlatformId" title="Platform Id [alias]" uid="station_wmo_id" units=""></item> … … 16240 16209 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ce" means the element "cerium" and "141Ce" is the isotope "cerium-141" with a half-life of 3.30e+01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf141CeInAir" title="Integral Wrt Time of Radioactivity Concentration of 141Ce in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_141Ce_in_air" units="Bq s m-3"></item> 16241 16210 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'.The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. 'Calcareous phytoplankton' are phytoplankton that produce calcite. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Calcite is a mineral that is a polymorphof calcium carbonate. The chemical formula of calcite is CaCO3. Standard names also existfor aragonite, another polymorph of calcium carbonate." label="MoleConcentrationOfCalcareousPhytoplanktonExpressedAsCarbonInSeaWater" title="Mole Concentration of Calcareous Phytoplankton Expressed As Carbon in Sea Water" uid="mole_concentration_of_calcareous_phytoplankton_expressed_as_carbon_in_sea_water" units="mol m-3"></item> 16211 <item description="The phrase "square_of_X" means X*X. Sea surface salinity is the salt concentration of sea water close to the sea surface, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. Sea surface salinity is often abbreviated as "SSS". For the salinity of sea water at a particular depth or layer, a data variable of "sea_water_salinity" or one of the more precisely defined salinities should be used with a vertical coordinate axis. There are standard names for the precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity." label="SquareOfSeaSurfaceSalinity" title="Square of Sea Surface Salinity" uid="square_of_sea_surface_salinity" units="1e-6"></item> 16242 16212 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Amount" means mass per unit area." label="SurfaceSnowMeltAmount" title="Surface Snow Melt Amount" uid="surface_snow_melt_amount" units="kg m-2"></item> 16243 16213 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for molecular hydrogen is H2. The "savanna and grassland fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in non-forested areas. It excludes field burning of agricultural residues. "Savanna and grassland fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfMolecularHydrogenDueToEmissionFromSavannaAndGrasslandFires" title="Tendency of Atmosphere Mass Content of Molecular Hydrogen due to Emission from Savanna And Grassland Fires" uid="tendency_of_atmosphere_mass_content_of_molecular_hydrogen_due_to_emission_from_savanna_and_grassland_fires" units="kg m-2 s-1"></item> … … 16263 16233 <item description=""Northward" indicates a vector component which is positive when directed northward (negative southward). Transport across_unit_distance means expressed per unit distance normal to the direction of transport." label="NorthwardAtmosphereWaterVaporTransportAcrossUnitDistance" title="Northward Atmosphere Water Vapor Transport Across Unit Distance" uid="northward_atmosphere_water_vapor_transport_across_unit_distance" units="kg m-1 s-1"></item> 16264 16234 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Tc" means the element "technetium" and "99mTc" is the metastable state of the isotope "technetium-99" with a half-life of 2.51e-01 days." label="RadioactivityConcentrationOf99MtcInAir" title="Radioactivity Concentration of 99Mtc in Air" uid="radioactivity_concentration_of_99mTc_in_air" units="Bq m-3"></item> 16265 <item description=" "Respiration carbon" refers to the rate at which biomass is respired expressed as the mass of carbon which it contains. Soil respiration is the sum of respiration in the soil by animals and decomposers of litter (heterotrophs or "consumers"), which have not produced the biomass they respire, and respiration by the roots of plants (autotrophs or "producers"), which have themselves produced the biomass they respire. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SoilRespirationCarbonFlux" title="Soil Respiration Carbon Flux" uid="soil_respiration_carbon_flux" units="kg m-2 s-1"></item>16235 <item description="alias::soil_respiration_carbon_flux" label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToRespirationInSoil" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Respiration in Soil [alias]" uid="soil_respiration_carbon_flux" units="kg m-2 s-1"></item> 16266 16236 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula for carbon dioxide is CO2. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Anthropogenic" means influenced, caused, or created by human activity. "Anthropogenic land use change" means human changes to land, excluding forest regrowth. It includes fires ignited by humans for the purpose of land use change and the processes of eventual disposal and decomposition of wood products such as paper, cardboard, furniture and timber for construction." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToAnthropogenicLandUseOrLandCoverChange" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Anthropogenic Land Use Or Land Cover Change" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_anthropogenic_land_use_or_land_cover_change" units="kg m-2 s-1"></item> 16267 16237 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="UpwardWaterVaporFluxInAirDueToDiffusion" title="Upward Water Vapor Flux in Air due to Diffusion" uid="upward_water_vapor_flux_in_air_due_to_diffusion" units="kg m-2 s-1"></item> … … 16401 16371 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for beta_pinene is C10H16. The IUPAC name for beta-pinene is (1S,5S)-6,6-dimethyl-2-methylenebicyclo[3.1.1]heptane." label="MassFractionOfBetaPineneInAir" title="Mass Fraction of Beta Pinene in Air" uid="mass_fraction_of_beta_pinene_in_air" units="1"></item> 16402 16372 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Cs" means the element "cesium" and "135Cs" is the isotope "cesium-135" with a half-life of 8.39e+08 days." label="RadioactivityConcentrationOf135CsInAir" title="Radioactivity Concentration of 135Cs in Air" uid="radioactivity_concentration_of_135Cs_in_air" units="Bq m-3"></item> 16373 <item description=""Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. Soil carbon is returned to the atmosphere as the organic matter decays. The decay process takes varying amounts of time depending on the composition of the organic matter, the temperature and the availability of moisture. A carbon "soil pool" means the carbon contained in organic matter which has a characteristic period over which it decays and releases carbon into the atmosphere. "Slow soil pool" refers to the decay of organic matter in soil with a characteristic period of more than a hundred years under reference climate conditions of a temperature of 20 degrees Celsius and no water limitations." label="SlowSoilPoolMassContentOfCarbon" title="Slow Soil Pool Mass Content of Carbon" uid="slow_soil_pool_mass_content_of_carbon" units="kg m-2"></item> 16403 16374 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for propene is C3H6. Propene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species." label="TendencyOfAtmosphereMassContentOfPropeneDueToEmission" title="Tendency of Atmosphere Mass Content of Propene due to Emission" uid="tendency_of_atmosphere_mass_content_of_propene_due_to_emission" units="kg m-2 s-1"></item> 16404 16375 <item description=""tendency_of_X" means derivative of X with respect to time. The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere,i.e. summed over the atmospheric column and over the entire globe. The chemical formula ofCFC11 is CFCl3. The IUPAC name fof CFC11 is trichloro-fluoro-methane." label="TendencyOfAtmosphereMolesOfCfc11" title="Tendency of Atmosphere Moles of Cfc11" uid="tendency_of_atmosphere_moles_of_cfc11" units="mol s-1"></item> … … 16486 16457 <item description="Speed is the magnitude of velocity. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity." label="WindSpeed" title="Wind Speed" uid="wind_speed" units="m s-1"></item> 16487 16458 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula of CFC115 is CClF2CF3. The IUPAC name for CFC115 is 1-chloro-1,1,2,2,2-pentafluoro-ethane." label="AtmosphereMolesOfCfc115" title="Atmosphere Moles of Cfc115" uid="atmosphere_moles_of_cfc115" units="mol"></item> 16488 <item description=" "Respiration carbon" refers to the rate at which biomass is respired expressed as the mass of carbon which it contains. Heterotrophic respiration is respiration by heterotrophs ("consumers"), which are organisms (including animals and decomposers) that consume other organisms or dead organic material, rather than synthesising organic material from inorganic precursors using energy from the environment (especially sunlight) as autotrophs ("producers") do. Heterotrophic respiration goes on both above and within the soil. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="HeterotrophicRespirationCarbonFlux" title="Heterotrophic Respiration Carbon Flux" uid="heterotrophic_respiration_carbon_flux" units="kg m-2 s-1"></item>16459 <item description="alias::heterotrophic_respiration_carbon_flux" label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToHeterotrophicRespiration" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Heterotrophic Respiration [alias]" uid="heterotrophic_respiration_carbon_flux" units="kg m-2 s-1"></item> 16489 16460 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". The phrase "product_of_X_and_Y" means X*Y. Depth is the vertical distance below the surface. Sea water density is the in-situ density (not the potential density). For Boussinesq models, density is the constant Boussinesq reference density, a quantity which has the standard name reference_sea_water_density_for_boussinesq_approximation. Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. Practical salinity units are dimensionless. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity." label="IntegralWrtDepthOfProductOfSeaWaterDensityAndSalinity" title="Integral Wrt Depth of Product of Sea Water Density And Salinity" uid="integral_wrt_depth_of_product_of_sea_water_density_and_salinity" units="1e-3 kg m-2"></item> 16490 16461 <item description="Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for molecular hydrogen is H2." label="MassConcentrationOfMolecularHydrogenInAir" title="Mass Concentration of Molecular Hydrogen in Air" uid="mass_concentration_of_molecular_hydrogen_in_air" units="kg m-3"></item> … … 16492 16463 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Eu" means the element "europium" and "155Eu" is the isotope "europium-155" with a half-life of 1.75e+03 days." label="RadioactivityConcentrationOf155EuInAir" title="Radioactivity Concentration of 155Eu in Air" uid="radioactivity_concentration_of_155Eu_in_air" units="Bq m-3"></item> 16493 16464 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Am" means the element "americium" and "241Am" is the isotope "americium-241" with a half-life of 1.67e+05 days." label="RadioactivityConcentrationOf241AmInAir" title="Radioactivity Concentration of 241Am in Air" uid="radioactivity_concentration_of_241Am_in_air" units="Bq m-3"></item> 16465 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. "Vegetation" means any living plants e.g. trees, shrubs, grass. "Litter" is dead plant material in or above the soil." label="SurfaceUpwardMassFluxOfNitrogenCompoundsExpressedAsNitrogenOutOfVegetationAndLitterAndSoil" title="Surface Upward Mass Flux of Nitrogen Compounds Expressed As Nitrogen Out of Vegetation And Litter And Soil" uid="surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_out_of_vegetation_and_litter_and_soil" units="kg m-2 s-1"></item> 16494 16466 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. Chlorinated hydrocarbons are a group of chemicals composed of carbon, chlorine and hydrogen. As pesticides, they are also referred to by several other names, including chlorinated organics, chlorinated insecticides and chlorinated synthetics. In standard names "chlorinated_hydrocarbons" is the term used to describe the group of chlorinated hydrocarbon species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "land transport" sector includes fuel combustion activities related to road transportation, railways and other transportation. "Land transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A3b, 1A3c and 1A3e as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfChlorinatedHydrocarbonsDueToEmissionFromLandTransport" title="Tendency of Atmosphere Mass Content of Chlorinated Hydrocarbons due to Emission from Land Transport" uid="tendency_of_atmosphere_mass_content_of_chlorinated_hydrocarbons_due_to_emission_from_land_transport" units="kg m-2 s-1"></item> 16495 16467 <item description="alias::upwelling_spectral_radiance_in_air" label="UpwellingRadiancePerUnitWavelengthInAir" title="Upwelling Radiance Per Unit Wavelength in Air [alias]" uid="upwelling_spectral_radiance_in_air" units="W m-2 m-1 sr-1"></item> … … 16502 16474 <item description="The ocean meridional overturning streamfunction should not include not include the parameterized eddy advection velocity." label="OceanMeridionalOverturningStreamfunction" title="Ocean Meridional Overturning Streamfunction" uid="ocean_meridional_overturning_streamfunction" units="m3 s-1"></item> 16503 16475 <item description="Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. The construction vertical_X_diffusivity means the vertical component of thediffusivity of X due to motion which is not resolved on the grid scale of the model. "Due to tides" means due to all astronomical gravity changes which manifest as tides.No distinction is made between different tidal components. The specification of a physicalprocess by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase." label="OceanVerticalMomentumDiffusivityDueToTides" title="Ocean Vertical Momentum Diffusivity due to Tides" uid="ocean_vertical_momentum_diffusivity_due_to_tides" units="m2 s-1"></item> 16476 <item description=""tendency_of_X" means derivative of X with respect to time. "troposphere_moles_of_X" means the total number of moles of X contained in the troposphere, i.e, summed over that part of the atmospheric column and over the entire globe. The chemical formula of methyl bromide is CH3Br. The IUPAC name for methyl bromide is bromomethane." label="TendencyOfTroposphereMolesOfMethylBromide" title="Tendency of Troposphere Moles of Methyl Bromide" uid="tendency_of_troposphere_moles_of_methyl_bromide" units="mol s-1"></item> 16477 <item description=""Content" indicates a quantity per unit area. "Litter" is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between "fine" and "coarse" is model dependent. "Surface litter" means the part of the litter resting above the soil surface. The sum of the quantities with standard names wood_debris_mass_content_of_nitrogen, surface_litter_mass_content_of_nitrogen and subsurface_litter_mass_content_of_nitrogen is the total nitrogen mass content of dead plant material." label="SurfaceLitterMassContentOfNitrogen" title="Surface Litter Mass Content of Nitrogen" uid="surface_litter_mass_content_of_nitrogen" units="kg m-2"></item> 16504 16478 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ra" means the element "radium" and "226Ra" is the isotope "radium-226" with a half-life of 5.86e+05 days." label="SurfaceRadioactivityContentOf226Ra" title="Surface Radioactivity Content of 226Ra" uid="surface_radioactivity_content_of_226Ra" units="Bq m-2"></item> 16505 <item description=""tendency_of_X" means derivative of X with respect to time. "troposphere_moles_of_X" means the total number of moles of X contained in the troposphere, i.e, summed over that part of the atmospheric column and over the entire globe. The chemical formula of methyl bromide is CH3Br. The IUPAC name for methyl bromide is bromomethane." label="TendencyOfTroposphereMolesOfMethylBromide" title="Tendency of Troposphere Moles of Methyl Bromide" uid="tendency_of_troposphere_moles_of_methyl_bromide" units="mol s-1"></item>16506 16479 <item description=""Eliassen Palm flux" is a widely used vector in the meridional plane, and the divergence of this flux appears as a forcing in the Transformed Eulerian mean formulation of the zonal mean zonal wind equation. "Upward" indicates a vector component which is positive when directed upward (negative downward)." label="UpwardEliassenPalmFluxInAir" title="Upward Eliassen Palm Flux in Air" uid="upward_eliassen_palm_flux_in_air" units="m3 s-2"></item> 16507 16480 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula of CFC113 is CCl2FCClF2. The IUPAC name for CFC113 is 1,1,2-trichloro-1,2,2-trifluoro-ethane." label="AtmosphereMolesOfCfc113" title="Atmosphere Moles of Cfc113" uid="atmosphere_moles_of_cfc113" units="mol"></item> … … 16539 16512 <item description=""y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection." label="OceanYOverturningMassStreamfunctionDueToParameterizedMesoscaleEddyAdvection" title="Ocean Y Overturning Mass Streamfunction due to Parameterized Mesoscale Eddy Advection" uid="ocean_y_overturning_mass_streamfunction_due_to_parameterized_mesoscale_eddy_advection" units="kg s-1"></item> 16540 16513 <item description="alias::omnidirectional_spectral_spherical_irradiance_in_sea_water" label="OmnidirectionalSphericalIrradiancePerUnitWavelengthInSeaWater" title="Omnidirectional Spherical Irradiance Per Unit Wavelength in Sea Water [alias]" uid="omnidirectional_spectral_spherical_irradiance_in_sea_water" units="W m-3"></item> 16514 <item description="The quantity with standard name sea_water_added_conservative_temperature is a passive tracer in an ocean model whose surface flux does not come from the atmosphere but is imposed externally upon the simulated climate system. The surface flux is expressed as a heat flux and converted to a passive tracer increment as if it were a heat flux being added to conservative temperature. The passive tracer is transported within the ocean as if it were conservative temperature. The passive tracer is zero in the control climate of the model. The passive tracer records added heat, as described for the CMIP6 FAFMIP experiment (doi:10.5194/gmd-9-3993-2016), following earlier ideas. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2." label="SeaWaterAddedConservativeTemperature" title="Sea Water Added Conservative Temperature" uid="sea_water_added_conservative_temperature" units="degree_C"></item> 16541 16515 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ce" means the element "cerium" and "141Ce" is the isotope "cerium-141" with a half-life of 3.30e+01 days." label="SurfaceRadioactivityContentOf141Ce" title="Surface Radioactivity Content of 141Ce" uid="surface_radioactivity_content_of_141Ce" units="Bq m-2"></item> 16542 16516 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for halon1211 is CBrClF2. The IUPAC name for halon1211 is bromo-chloro-difluoro-methane." label="TendencyOfAtmosphereMassContentOfHalon1211DueToEmission" title="Tendency of Atmosphere Mass Content of Halon1211 due to Emission" uid="tendency_of_atmosphere_mass_content_of_halon1211_due_to_emission" units="kg m-2 s-1"></item> … … 16665 16639 <item description="Downwelling radiation is radiation from above. It does not mean "net downward". Photon radiance is the photon flux in a particular direction, per unit of solid angle. The direction from which it is coming must be specified, for instance with a coordinate of zenith_angle. If the radiation does not depend on direction, a standard name of isotropic radiance should be chosen instead. "Photosynthetic" radiation is the part of the spectrum which is used in photosynthesis e.g. 400-700 nm. The range of wavelengths could be specified precisely by the bounds of a coordinate of radiation_wavelength. A photon flux is specified in terms of numbers of photons expressed in moles." label="DownwellingPhotosyntheticPhotonRadianceInSeaWater" title="Downwelling Photosynthetic Photon Radiance in Sea Water" uid="downwelling_photosynthetic_photon_radiance_in_sea_water" units="mol m-2 s-1 sr-1"></item> 16666 16640 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ra" means the element "radium" and "227Ra" is the isotope "radium-227" with a half-life of 2.87e-02 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf227RaInAir" title="Integral Wrt Time of Radioactivity Concentration of 227Ra in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_227Ra_in_air" units="Bq s m-3"></item> 16641 <item description=""Litter" is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between "fine" and "coarse" is model dependent. "Content" indicates a quantity per unit area. The sum of the quantities with standard names surface_litter_mass_content_of_carbon and subsurface_litter_mass_content_of_carbon has the standard name litter_mass_content_of_carbon." label="LitterMassContentOfCarbon" title="Litter Mass Content of Carbon" uid="litter_mass_content_of_carbon" units="kg m-2"></item> 16667 16642 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for chlorine monoxide is ClO." label="MassFractionOfChlorineMonoxideInAir" title="Mass Fraction of Chlorine Monoxide in Air" uid="mass_fraction_of_chlorine_monoxide_in_air" units="1"></item> 16668 16643 <item description="Mass fraction is used in the construction "mass_fraction_of_X_in_Y", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. "Pm2p5 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. The chemical formula for ammonium is NH4." label="MassFractionOfPm2P5AmmoniumDryAerosolParticlesInAir" title="Mass Fraction of Pm2P5 Ammonium Dry Aerosol Particles in Air" uid="mass_fraction_of_pm2p5_ammonium_dry_aerosol_particles_in_air" units="1"></item> 16644 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). Net upward radiation is the difference between radiation from below (upwelling) and radiation from above (downwelling). Radiative flux is the sum of shortwave and longwave radiative fluxes. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceNetUpwardRadiativeFlux" title="Surface Net Upward Radiative Flux" uid="surface_net_upward_radiative_flux" units="W m-2"></item> 16669 16645 <item description="The wave directional spectrum can be written as a five dimensional function S(t,x,y,f,theta) where t is time, x and y are horizontal coordinates (such as longitude and latitude), f is frequency and theta is direction. S has the standard name sea_surface_wave_directional_variance_spectral_density. S can be integrated over direction to give S1= integral(S dtheta) and this quantity has the standard name sea_surface_wave_variance_spectral_density. Frequency moments, M(n) of S1 can then be calculated as follows: M(n) = integral(S1 f^n df), where f^n is f to the power of n. The first wave period, T(m1) is calculated as the ratio M(0)/M(1)." label="SeaSurfaceWaveMeanPeriodFromVarianceSpectralDensityFirstFrequencyMoment" title="Sea Surface Wave Mean Period from Variance Spectral Density First Frequency Moment" uid="sea_surface_wave_mean_period_from_variance_spectral_density_first_frequency_moment" units="s"></item> 16670 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). Net upward radiation is the difference between radiation from below (upwelling) and radiation from above (downwelling). Radiative flux is the sum of shortwave and longwave radiative fluxes. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceNetUpwardRadiativeFlux" title="Surface Net Upward Radiative Flux" uid="surface_net_upward_radiative_flux" units="W m-2"></item>16671 16646 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Sb" means the element "antimony" and "128Sb" is the isotope "antimony-128" with a half-life of 3.75e-01 days." label="SurfaceRadioactivityContentOf128Sb" title="Surface Radioactivity Content of 128Sb" uid="surface_radioactivity_content_of_128Sb" units="Bq m-2"></item> 16672 16647 <item description=""X_area_fraction" means the fraction of horizontal area occupied by X. Sea ice area fraction is area of the sea surface occupied by sea ice. It is also called "sea ice concentration". The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. Sea ice "ridging" occurs in rough sea conditions. The motion of the sea surface can cause areas of sea ice to deform and fold resulting in ridged upper and lower surfaces. The ridges can be as much as twenty metres thick if thick ice is deformed." label="TendencyOfSeaIceAreaFractionDueToRidging" title="Tendency of Sea Ice Area Fraction due to Ridging" uid="tendency_of_sea_ice_area_fraction_due_to_ridging" units="s-1"></item> … … 16688 16663 <item description="The soil porosity is the proportion of its total volume not occupied by soil solids." label="SoilPorosity" title="Soil Porosity" uid="soil_porosity" units="1"></item> 16689 16664 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Gd" means the element "gadolinium" and "159Gd" is the isotope "gadolinium-159" with a half-life of 7.71e-01 days." label="SurfaceRadioactivityContentOf159Gd" title="Surface Radioactivity Content of 159Gd" uid="surface_radioactivity_content_of_159Gd" units="Bq m-2"></item> 16690 <item description=" "Content" indicates a quantity per unit area. "Wood debris" means dead organic matter composed of coarse wood. It is distinct from litter." label="WoodDebrisCarbonContent" title="Wood Debris Carbon Content" uid="wood_debris_carbon_content" units="kg m-2"></item>16665 <item description="alias::wood_debris_carbon_content" label="WoodDebrisMassContentOfCarbon" title="Wood Debris Mass Content of Carbon [alias]" uid="wood_debris_carbon_content" units="kg m-2"></item> 16691 16666 <item description=""Biomass burning carbon" refers to the rate at which biomass is burned by forest fires etc., expressed as the mass of carbon which it contains. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="BiomassBurningCarbonFlux" title="Biomass Burning Carbon Flux" uid="biomass_burning_carbon_flux" units="kg m-2 s-1"></item> 16692 16667 <item description="alias::mass_fraction_of_nitrate_dry_aerosol_in_air" label="MassFractionOfNitrateDryAerosolParticlesInAir" title="Mass Fraction of Nitrate Dry Aerosol Particles in Air [alias]" uid="mass_fraction_of_nitrate_dry_aerosol_in_air" units="1"></item> 16668 <item description=""Content" indicates a quantity per unit area. "Miscellaneous living matter" means all those parts of plants that are not leaf, stem, root or other separately named components. The term "plants" refers to the kingdom of plants in the modern classification which excludes fungi. Plants are autotrophs i.e. "producers" of biomass using carbon obtained from carbon dioxide." label="MiscellaneousLivingMatterMassContentOfNitrogen" title="Miscellaneous Living Matter Mass Content of Nitrogen" uid="miscellaneous_living_matter_mass_content_of_nitrogen" units="kg m-2"></item> 16693 16669 <item description="The surface called "surface" means the lower boundary of the atmosphere. Downwelling radiation is radiation from above. It does not mean "net downward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength." label="SurfaceDownwellingRadiativeFluxPerUnitWavelengthInAir" title="Surface Downwelling Radiative Flux Per Unit Wavelength in Air" uid="surface_downwelling_radiative_flux_per_unit_wavelength_in_air" units="W m-2 m-1"></item> 16694 16670 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Inorganic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sedimentation" is the sinking of particulate matter to the floor of a body of water." label="TendencyOfOceanMoleContentOfInorganicCarbonDueToSedimentation" title="Tendency of Ocean Mole Content of Inorganic Carbon due to Sedimentation" uid="tendency_of_ocean_mole_content_of_inorganic_carbon_due_to_sedimentation" units="mol m-2 s-1"></item> … … 16750 16726 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Cm" means the element "curium" and "244Cm" is the isotope "curium-244" with a half-life of 6.42e+03 days." label="SurfaceRadioactivityContentOf244Cm" title="Surface Radioactivity Content of 244Cm" uid="surface_radioactivity_content_of_244Cm" units="Bq m-2"></item> 16751 16727 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ar" means the element "argon" and "41Ar" is the isotope "argon-41" with a half-life of 7.64e-02 days." label="SurfaceRadioactivityContentOf41Ar" title="Surface Radioactivity Content of 41Ar" uid="surface_radioactivity_content_of_41Ar" units="Bq m-2"></item> 16728 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nox" means a combination of two radical species containing nitrogen and oxygen NO+NO2. "Vegetation" means any living plants e.g. trees, shrubs, grass. "Litter" is dead plant material in or above the soil." label="SurfaceUpwardMassFluxOfNoxExpressedAsNitrogenOutOfVegetationAndLitterAndSoil" title="Surface Upward Mass Flux of Nox Expressed As Nitrogen Out of Vegetation And Litter And Soil" uid="surface_upward_mass_flux_of_nox_expressed_as_nitrogen_out_of_vegetation_and_litter_and_soil" units="kg m-2 s-1"></item> 16752 16729 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. "Pm10 aerosol" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfAtmosphereMassContentOfPm10DustDryAerosolParticlesDueToEmission" title="Tendency of Atmosphere Mass Content of Pm10 Dust Dry Aerosol Particles due to Emission" uid="tendency_of_atmosphere_mass_content_of_pm10_dust_dry_aerosol_particles_due_to_emission" units="kg m-2 s-1"></item> 16753 16730 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for methanol is CH3OH." label="AtmosphereMassContentOfMethanol" title="Atmosphere Mass Content of Methanol" uid="atmosphere_mass_content_of_methanol" units="kg m-2"></item> … … 16769 16746 <item description="alias::atmosphere_optical_thickness_due_to_pm2p5_ambient_aerosol" label="AtmosphereOpticalThicknessDueToPm2P5AmbientAerosolParticles" title="Atmosphere Optical Thickness due to Pm2P5 Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_pm2p5_ambient_aerosol" units="1"></item> 16770 16747 <item description="alias::volume_extinction_coefficient_in_air_due_to_ambient_aerosol" label="VolumeExtinctionCoefficientInAirDueToAmbientAerosolParticles" title="Volume Extinction Coefficient in Air due to Ambient Aerosol Particles [alias]" uid="volume_extinction_coefficient_in_air_due_to_ambient_aerosol" units="m -1"></item> 16771 <item description="alias::electromagnetic_wavelength" label="RadiationWavelength" title="Radiation Wavelength [alias]" uid="electromagnetic_wavelength" units="m"></item>16772 16748 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. "lwe" means liquid water equivalent. Specific mass balance means the net rate at which ice is added per unit area at the land ice surface due to all processes of surface accumulation and ablation. A negative value means loss of ice." label="LandIceLweSurfaceSpecificMassBalanceRate" title="Land Ice Lwe Surface Specific Mass Balance Rate" uid="land_ice_lwe_surface_specific_mass_balance_rate" units="m s-1"></item> 16773 16749 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for butane is C4H10. Butane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species." label="MassFractionOfButaneInAir" title="Mass Fraction of Butane in Air" uid="mass_fraction_of_butane_in_air" units="1"></item> … … 16775 16751 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Water" means water in all phases, including frozen i.e. ice and snow. Downwelling radiation is radiation from above. It does not mean "net downward". Photon radiance is the photon flux in a particular direction, per unit of solid angle. The direction from which it is coming must be specified, for instance with a coordinate of zenith_angle. If the radiation does not depend on direction, a standard name of isotropic radiance should be chosen instead. A photon flux is specified in terms of numbers of photons expressed in moles. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength." label="SurfaceDownwellingPhotonRadiancePerUnitWavelengthInSeaWater" title="Surface Downwelling Photon Radiance Per Unit Wavelength in Sea Water" uid="surface_downwelling_photon_radiance_per_unit_wavelength_in_sea_water" units="mol m-2 s-1 m-1 sr-1"></item> 16776 16752 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the particles. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol. "Dry aerosol particles" means aerosol particles without any water uptake. The "waste treatment and disposal" sector comprises solid waste disposal on land, wastewater handling, waste incineration and other waste disposal. "Waste treatment and disposal" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 6A, 6B, 6C and 6D as defined in the 2006 IPCC guidelines for national greenhouse gas inventories". Chemically, "elemental carbon" is the carbonaceous fraction of particulate matter that is thermally stable in an inert atmosphere to high temperatures near 4000K and can only be gasified by oxidation starting at temperatures above 340 C. It is assumed to be inert and non-volatile under atmospheric conditions and insoluble in any solvent (Ogren and Charlson, 1983)." label="TendencyOfAtmosphereMassContentOfElementalCarbonDryAerosolParticlesDueToEmissionFromWasteTreatmentAndDisposal" title="Tendency of Atmosphere Mass Content of Elemental Carbon Dry Aerosol Particles due to Emission from Waste Treatment And Disposal" uid="tendency_of_atmosphere_mass_content_of_elemental_carbon_dry_aerosol_particles_due_to_emission_from_waste_treatment_and_disposal" units="kg m-2 s-1"></item> 16753 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition" is the sum of turbulent deposition and gravitational settling. The chemical formula for molecular hydrogen is H2." label="TendencyOfAtmosphereMassContentOfMolecularHydrogenDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Molecular Hydrogen due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_molecular_hydrogen_due_to_dry_deposition" units="kg m-2 s-1"></item> 16754 <item description="The "Ultraviolet Index" (UVI) is a measure of the amount of solar ultraviolet radiation that reaches the surface of the earth depending on factors such as time of day and cloud cover. It is often used to alert the public of the need to limit sun exposure and use sun creams to protect the skin. Each point on the Index scale is equivalent to 25 mW m-2 of UV radiation (reference: Australian Bureau of Meteorology, http://www.bom.gov.au/uv/about_uv_index.shtml). The UVI range is expressed as a numeric value from 0 to 20 and sometimes graphically as bands of color indicating the attendant risk of skin damage. A UVI of 0-2 is described as 'Low' (represented graphically in green); a UVI of 11 or greater is described as "Extreme" (represented graphically in purple). The higher the UVI, the greater the potential health risk to humans and the less time it takes for harm to occur. To specify the amount of cloud cover at which the data variable applies, provide a scalar coordinate variable with standard name "cloud_area_fraction". Standard names are also defined for the quantities ultraviolet_index_assuming_clear_sky and ultraviolet_index_assuming_overcast_sky." label="UltravioletIndex" title="Ultraviolet Index" uid="ultraviolet_index" units="1"></item> 16755 <item description="alias::electromagnetic_wavelength" label="RadiationWavelength" title="Radiation Wavelength [alias]" uid="electromagnetic_wavelength" units="m"></item> 16777 16756 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The sum of turbulent deposition and gravitational settling is dry deposition. "tendency_of_X" means derivative of X with respect to time. The chemical formula for the sulfate anion is SO4(2-)." label="TendencyOfAtmosphereMassContentOfSulfateDryAerosolParticlesExpressedAsSulfurDueToTurbulentDeposition" title="Tendency of Atmosphere Mass Content of Sulfate Dry Aerosol Particles Expressed As Sulfur due to Turbulent Deposition" uid="tendency_of_atmosphere_mass_content_of_sulfate_dry_aerosol_particles_expressed_as_sulfur_due_to_turbulent_deposition" units="kg m-2 s-1"></item> 16778 <item description="The "Ultraviolet Index" (UVI) is a measure of the amount of solar ultraviolet radiation that reaches the surface of the earth depending on factors such as time of day and cloud cover. It is often used to alert the public of the need to limit sun exposure and use sun creams to protect the skin. Each point on the Index scale is equivalent to 25 mW m-2 of UV radiation (reference: Australian Bureau of Meteorology, http://www.bom.gov.au/uv/about_uv_index.shtml). The UVI range is expressed as a numeric value from 0 to 20 and sometimes graphically as bands of color indicating the attendant risk of skin damage. A UVI of 0-2 is described as 'Low' (represented graphically in green); a UVI of 11 or greater is described as "Extreme" (represented graphically in purple). The higher the UVI, the greater the potential health risk to humans and the less time it takes for harm to occur. To specify the amount of cloud cover at which the data variable applies, provide a scalar coordinate variable with standard name "cloud_area_fraction". Standard names are also defined for the quantities ultraviolet_index_assuming_clear_sky and ultraviolet_index_assuming_overcast_sky." label="UltravioletIndex" title="Ultraviolet Index" uid="ultraviolet_index" units="1"></item>16779 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dry deposition" is the sum of turbulent deposition and gravitational settling. The chemical formula for molecular hydrogen is H2." label="TendencyOfAtmosphereMassContentOfMolecularHydrogenDueToDryDeposition" title="Tendency of Atmosphere Mass Content of Molecular Hydrogen due to Dry Deposition" uid="tendency_of_atmosphere_mass_content_of_molecular_hydrogen_due_to_dry_deposition" units="kg m-2 s-1"></item>16780 16757 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for trimethylbenzene is C9H12. The IUPAC names for trimethylbenzene is 1,3,5-trimethylbenzene. Trimethylbenzene is an aromatic hydrocarbon. There are standard names that refer to aromatic_compounds as a group, as well as those for individual species. The "energy production and distribution" sector comprises fuel combustion activities related to energy industries and fugitive emissions from fuels. It may also include any not-classified or "other" combustion, which is commonly included in energy-related inventory data. "Energy production and distribution" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A1 and 1B as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfTrimethylbenzeneDueToEmissionFromEnergyProductionAndDistribution" title="Tendency of Atmosphere Mass Content of Trimethylbenzene due to Emission from Energy Production And Distribution" uid="tendency_of_atmosphere_mass_content_of_trimethylbenzene_due_to_emission_from_energy_production_and_distribution" units="kg m-2 s-1"></item> 16781 16758 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity and temperature at which the quantity described by the standard name applies, provide scalar coordinate variables with standard names of "relative_humidity" and "air_temperature". The chemical formula for nitric acid is HNO3. Nitric acid trihydrate, sometimes referred to as NAT, is a stable crystalline substance consisting of three molecules of water to one molecule of nitric acid." label="AtmosphereMolesOfNitricAcidTrihydrateAmbientAerosolParticles" title="Atmosphere Moles of Nitric Acid Trihydrate Ambient Aerosol Particles" uid="atmosphere_moles_of_nitric_acid_trihydrate_ambient_aerosol_particles" units="mol"></item> … … 16820 16797 <item description=""X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. A coordinate variable of solar_zenith_angle indicating the twilight extent should be specified." label="AreaFractionOfTwilightDefinedBySolarZenithAngle" title="Area Fraction of Twilight Defined by Solar Zenith Angle" uid="area_fraction_of_twilight_defined_by_solar_zenith_angle" units="1"></item> 16821 16798 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Cm" means the element "curium" and "241Cm" is the isotope "curium-241" with a half-life of 3.50e+01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf241CmInAir" title="Integral Wrt Time of Radioactivity Concentration of 241Cm in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_241Cm_in_air" units="Bq s m-3"></item> 16822 <item description=" "Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. "Soil carbon" is the organic matter present in soil quantified by the mass of carbon it contains. Soil carbon is returned to the atmosphere as the organic matter decays. The decay process takes varying amounts of time depending on the composition of the organic matter, the temperature and the availability of moisture. A carbon "soil pool" means the carbon contained in organic matter which has a characteristic period over which it decays and releases carbon into the atmosphere. "Medium soil pool" refers to the decay of organic matter in soil with a characteristic period of between ten and one hundred years under reference climate conditions of a temperature of 20 degrees Celsius and no water limitations." label="MediumSoilPoolCarbonContent" title="Medium Soil Pool Carbon Content" uid="medium_soil_pool_carbon_content" units="kg m-2"></item>16799 <item description="alias::medium_soil_pool_carbon_content" label="MediumSoilPoolMassContentOfCarbon" title="Medium Soil Pool Mass Content of Carbon [alias]" uid="medium_soil_pool_carbon_content" units="kg m-2"></item> 16823 16800 <item description="Air temperature is the bulk temperature of the air, not the surface (skin) temperature. A variable whose standard name has the form number_of_days_with_X_below|above_threshold is a count of the number of days on which the condition X_below|above_threshold is satisfied. It must have a coordinate variable or scalar coordinate variable with the a standard name of X to supply the threshold(s). It must have a climatological time variable, and a cell_methods entry for within days which describes the processing of quantity X before the threshold is applied. A number_of_days is an extensive quantity in time, and the cell_methods entry for over days should be "sum"." label="NumberOfDaysWithAirTemperatureAboveThreshold" title="Number of Days With Air Temperature Above Threshold" uid="number_of_days_with_air_temperature_above_threshold" units="1"></item> 16824 16801 <item description=""X_volume_fraction" means the fraction of volume occupied by X." label="OceanVolumeFraction" title="Ocean Volume Fraction" uid="ocean_volume_fraction" units="1"></item> … … 16839 16816 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pa" means the element "protactinium" and "234mPa" is the metastable state of the isotope "protactinium-234" with a half-life of 8.13e-04 days." label="RadioactivityConcentrationOf234MpaInAir" title="Radioactivity Concentration of 234Mpa in Air" uid="radioactivity_concentration_of_234mPa_in_air" units="Bq m-3"></item> 16840 16817 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Am" means the element "americium" and "243Am" is the isotope "americium-243" with a half-life of 2.91e+06 days." label="RadioactivityConcentrationOf243AmInAir" title="Radioactivity Concentration of 243Am in Air" uid="radioactivity_concentration_of_243Am_in_air" units="Bq m-3"></item> 16818 <item description=""Litter" is dead plant material in or above the soil. It is distinct from coarse wood debris. The precise distinction between "fine" and "coarse" is model dependent. "Surface litter" means the part of the litter resting above the soil surface. "Content" indicates a quantity per unit area. The sum of the quantities with standard names surface_litter_mass_content_of_carbon and subsurface_litter_mass_content_of_carbon has the standard name litter_mass_content_of_carbon." label="SurfaceLitterMassContentOfCarbon" title="Surface Litter Mass Content of Carbon" uid="surface_litter_mass_content_of_carbon" units="kg m-2"></item> 16819 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Northward" indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)" label="TendencyOfNorthwardWindDueToConvection" title="Tendency of Northward Wind due to Convection" uid="tendency_of_northward_wind_due_to_convection" units="m s-2"></item> 16820 <item description="toa_outgoing_radiance_per_unit_wavenumber_mean_within_collocation_target is an average of observations of the quantity with standard name toa_outgoing_radiance_per_unit_wavenumber from a sensor's adjacent field-of-views within a collocation target. "toa" means top of atmosphere. The TOA outgoing radiance is the upwelling radiance, i.e., toward outer space. Radiance is the radiative flux in a particular direction, per unit of solid angle. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The "collocation target" is an area on the Earth's surface at which observations from at least two sensors are collected. Its size is defined by the sensor with the largest field-of-view footprint. Two events are deemed to be collocated based on some set of spatial, temporal, and viewing geometry criteria." label="ToaOutgoingRadiancePerUnitWavenumberMeanWithinCollocationTarget" title="Toa Outgoing Radiance Per Unit Wavenumber Mean Within Collocation Target" uid="toa_outgoing_radiance_per_unit_wavenumber_mean_within_collocation_target" units="W m-2 sr-1 (m-1)-1"></item> 16821 <item description="alias::atmosphere_optical_thickness_due_to_dust_ambient_aerosol" label="AtmosphereOpticalThicknessDueToDustAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Dust Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_dust_ambient_aerosol" units="1"></item> 16841 16822 <item description="The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume." label="SurfacePartialPressureOfCarbonDioxideNaturalAnalogueInSeaWater" title="Surface Partial Pressure of Carbon Dioxide Natural Analogue in Sea Water" uid="surface_partial_pressure_of_carbon_dioxide_natural_analogue_in_sea_water" units="Pa"></item> 16842 16823 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "I" means the element "iodine" and "135I" is the isotope "iodine-135" with a half-life of 2.79e-01 days." label="SurfaceRadioactivityContentOf135I" title="Surface Radioactivity Content of 135I" uid="surface_radioactivity_content_of_135I" units="Bq m-2"></item> 16843 <item description="alias::atmosphere_optical_thickness_due_to_dust_ambient_aerosol" label="AtmosphereOpticalThicknessDueToDustAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Dust Ambient Aerosol Particles [alias]" uid="atmosphere_optical_thickness_due_to_dust_ambient_aerosol" units="1"></item>16844 16824 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "U" means the element "uranium" and "236U" is the isotope "uranium-236" with a half-life of 8.73e+09 days." label="SurfaceRadioactivityContentOf236U" title="Surface Radioactivity Content of 236U" uid="surface_radioactivity_content_of_236U" units="Bq m-2"></item> 16845 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Northward" indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)" label="TendencyOfNorthwardWindDueToConvection" title="Tendency of Northward Wind due to Convection" uid="tendency_of_northward_wind_due_to_convection" units="m s-2"></item>16846 <item description="toa_outgoing_radiance_per_unit_wavenumber_mean_within_collocation_target is an average of observations of the quantity with standard name toa_outgoing_radiance_per_unit_wavenumber from a sensor's adjacent field-of-views within a collocation target. "toa" means top of atmosphere. The TOA outgoing radiance is the upwelling radiance, i.e., toward outer space. Radiance is the radiative flux in a particular direction, per unit of solid angle. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The "collocation target" is an area on the Earth's surface at which observations from at least two sensors are collected. Its size is defined by the sensor with the largest field-of-view footprint. Two events are deemed to be collocated based on some set of spatial, temporal, and viewing geometry criteria." label="ToaOutgoingRadiancePerUnitWavenumberMeanWithinCollocationTarget" title="Toa Outgoing Radiance Per Unit Wavenumber Mean Within Collocation Target" uid="toa_outgoing_radiance_per_unit_wavenumber_mean_within_collocation_target" units="W m-2 sr-1 (m-1)-1"></item>16847 16825 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The chemical formula for bromine nitrate is BrONO2. The chemical formula for the nitrate anion is NO3-." label="AtmosphereMassContentOfBromineNitrate" title="Atmosphere Mass Content of Bromine Nitrate" uid="atmosphere_mass_content_of_bromine_nitrate" units="kg m-2"></item> 16848 16826 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for methyl bromide is CH3Br. The IUPAC name for methyl bromide is bromomethane." label="AtmosphereMolesOfMethylBromide" title="Atmosphere Moles of Methyl Bromide" uid="atmosphere_moles_of_methyl_bromide" units="mol"></item> … … 16892 16870 <item description="The surface called "surface" means the lower boundary of the atmosphere. Geopotential is the sum of the specific gravitational potential energy relative to the geoid and the specific centripetal potential energy." label="SurfaceGeopotential" title="Surface Geopotential" uid="surface_geopotential" units="m2 s-2"></item> 16893 16871 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Pb" means the element "lead" and "211Pb" is the isotope "lead-211" with a half-life of 2.51e-02 days." label="SurfaceRadioactivityContentOf211Pb" title="Surface Radioactivity Content of 211Pb" uid="surface_radioactivity_content_of_211Pb" units="Bq m-2"></item> 16872 <item description=""Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "All land processes" means plant and soil respiration, photosynthesis, animal grazing, crop harvesting, natural fires and anthropogenic land use change." label="SurfaceUpwardMassFluxOfNitrogenCompoundsExpressedAsNitrogenDueToAllLandProcessesExcludingFires" title="Surface Upward Mass Flux of Nitrogen Compounds Expressed As Nitrogen due to All Land Processes Excluding Fires" uid="surface_upward_mass_flux_of_nitrogen_compounds_expressed_as_nitrogen_due_to_all_land_processes_excluding_fires" units="kg m-2 s-1"></item> 16894 16873 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Wet deposition" means deposition by precipitation." label="TendencyOfAtmosphereMassContentOfAlphaHexachlorocyclohexaneDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Alpha Hexachlorocyclohexane due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_alpha_hexachlorocyclohexane_due_to_wet_deposition" units="kg m-2 s-1"></item> 16895 16874 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for ammonia is NH3. The "energy production and distribution" sector comprises fuel combustion activities related to energy industries and fugitive emissions from fuels. It may also include any not-classified or "other" combustion, which is commonly included in energy-related inventory data. "Energy production and distribution" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A1 and 1B as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfAmmoniaDueToEmissionFromEnergyProductionAndDistribution" title="Tendency of Atmosphere Mass Content of Ammonia due to Emission from Energy Production And Distribution" uid="tendency_of_atmosphere_mass_content_of_ammonia_due_to_emission_from_energy_production_and_distribution" units="kg m-2 s-1"></item> … … 16944 16923 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "In" means the element "indium" and "118mIn" is the metastable state of the isotope "indium-118" with a half-life of 3.05e-03 days." label="SurfaceRadioactivityContentOf118Min" title="Surface Radioactivity Content of 118Min" uid="surface_radioactivity_content_of_118mIn" units="Bq m-2"></item> 16945 16924 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Sm" means the element "samarium" and "149Sm" is the isotope "samarium-149" with a half-life of 3.65e+18 days." label="SurfaceRadioactivityContentOf149Sm" title="Surface Radioactivity Content of 149Sm" uid="surface_radioactivity_content_of_149Sm" units="Bq m-2"></item> 16946 <item description=" "Upward" indicates a vector component which is positive when directed upward (negative downward). The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The surface called "surface" means the lower boundary of the atmosphere. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for carbon dioxide is CO2." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToEmissionFromCropHarvesting" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Emission from Crop Harvesting" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_crop_harvesting" units="kg m-2 s-1"></item>16925 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula for carbon dioxide is CO2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The definition of "crop" is model dependent, for example, some models may include fruit trees, trees grown for timber or other types of agricultural and forestry planting as crops. Crop harvesting means the human activity of collecting plant materials for the purpose of turning them into forestry or agricultural products." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToEmissionFromCropHarvesting" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Emission from Crop Harvesting" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_crop_harvesting" units="kg m-2 s-1"></item> 16947 16926 <item description=""tendency_of_X" means derivative of X with respect to time. The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere,i.e. summed over the atmospheric column and over the entire globe. The chemical formula ofcarbon tetrachloride is CCl4." label="TendencyOfAtmosphereMolesOfCarbonTetrachloride" title="Tendency of Atmosphere Moles of Carbon Tetrachloride" uid="tendency_of_atmosphere_moles_of_carbon_tetrachloride" units="mol s-1"></item> 16948 16927 <item description=""tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Vertical mixing" means any vertical transport other than by advection and parameterized eddy advection, represented by a combination of vertical diffusion, turbulent mixing and convection in ocean models. Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and normally given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity." label="TendencyOfSeaWaterSalinityDueToVerticalMixing" title="Tendency of Sea Water Salinity due to Vertical Mixing" uid="tendency_of_sea_water_salinity_due_to_vertical_mixing" units="1e-3 s-1"></item> … … 16968 16947 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Divalent mercury" means all compounds in which the mercury has two binding sites to other ion(s)in a salt or to other atom(s) in a molecule." label="MoleConcentrationOfGaseousDivalentMercuryInAir" title="Mole Concentration of Gaseous Divalent Mercury in Air" uid="mole_concentration_of_gaseous_divalent_mercury_in_air" units="mol m-3"></item> 16969 16948 <item description="Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability." label="NitrogenGrowthLimitationOfPicophytoplankton" title="Nitrogen Growth Limitation of Picophytoplankton" uid="nitrogen_growth_limitation_of_picophytoplankton" units="1"></item> 16949 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Northward" indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The quantity with standard name tendency_of_northward_wind_due_to_gravity_wave_drag is the total tendency of the northward wind due to gravity waves. It is the sum of the tendencies due to orographic and nonorographic gravity waves which have the standard names tendency_of_northward_wind_due_to_orographic_gravity_wave_drag and tendency_of_northward_wind_due_to_nonorographic_gravity_wave_drag, respectively." label="TendencyOfNorthwardWindDueToGravityWaveDrag" title="Tendency of Northward Wind due to Gravity Wave Drag" uid="tendency_of_northward_wind_due_to_gravity_wave_drag" units="m s-2"></item> 16970 16950 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pu" means the element "plutonium" and "236Pu" is the isotope "plutonium-236" with a half-life of 1.04e+03 days." label="RadioactivityConcentrationOf236PuInAir" title="Radioactivity Concentration of 236Pu in Air" uid="radioactivity_concentration_of_236Pu_in_air" units="Bq m-3"></item> 16971 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Northward" indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)" label="TendencyOfNorthwardWindDueToGravityWaveDrag" title="Tendency of Northward Wind due to Gravity Wave Drag" uid="tendency_of_northward_wind_due_to_gravity_wave_drag" units="m s-2"></item>16972 16951 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake." label="AtmosphereMassContentOfMercuryDryAerosolParticles" title="Atmosphere Mass Content of Mercury Dry Aerosol Particles" uid="atmosphere_mass_content_of_mercury_dry_aerosol_particles" units="kg m-2"></item> 16973 16952 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Clox"describes a family of chemical species consisting of inorganic chlorine compounds with theexception of hydrogen chloride (HCl) and chlorine nitrate (ClONO2). "Clox" is the term used in standard names for all species belonging to the family that are representedwithin a given model. The list of individual species that are included in a quantity with a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, byusing a comment attribute. "Inorganic chlorine", sometimes referred to as Cly, describes a family of chemical species which result from the degradation of source gases containing chlorine (CFCs, HCFCs, VSLS) and natural inorganic chlorine sources such as seasaltand other aerosols. Standard names that use the term "inorganic_chlorine" are used for quantities that contain all inorganic chlorine species including HCl and ClONO2. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculatedsolely with respect to the B contained in A, neglecting all other chemical constituents ofA." label="MoleConcentrationOfCloxExpressedAsChlorineInAir" title="Mole Concentration of Clox Expressed As Chlorine in Air" uid="mole_concentration_of_clox_expressed_as_chlorine_in_air" units="mol m-3"></item> … … 16997 16976 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Pu" means the element "plutonium" and "243Pu" is the isotope "plutonium-243" with a half-life of 2.07e-01 days." label="RadioactivityConcentrationOf243PuInAir" title="Radioactivity Concentration of 243Pu in Air" uid="radioactivity_concentration_of_243Pu_in_air" units="Bq m-3"></item> 16998 16977 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula for carbon dioxide is CO2. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. the surface of the earth). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. "Natural fires" means burning of biomass, whether living or dead, excluding fires ignited by humans, e.g. for agricultural purposes." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToEmissionFromNaturalFires" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Emission from Natural Fires" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_emission_from_natural_fires" units="kg m-2 s-1"></item> 16978 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Plant respiration is the sum of respiration by parts of plants both above and below the soil. Plants which photosynthesise are autotrophs i.e. "producers" of the biomass which they respire from inorganic precursors using sunlight for energy." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToPlantRespirationInRoots" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Plant Respiration in Roots" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_roots" units="kg m-2 s-1"></item> 16999 16979 <item description="The surface called "surface" means the lower boundary of the atmosphere. "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceUpwellingLongwaveFluxInAir" title="Surface Upwelling Longwave Flux in Air" uid="surface_upwelling_longwave_flux_in_air" units="W m-2"></item> 17000 16980 <item description="alias::tendency_of_sea_water_temperature_due_to_bolus_advection" label="TendencyOfSeaWaterTemperatureDueToParameterizedEddyAdvection" title="Tendency of Sea Water Temperature due to Parameterized Eddy Advection [alias]" uid="tendency_of_sea_water_temperature_due_to_bolus_advection" units="K s-1"></item> … … 17152 17132 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for HCFC141b is CH3CCl2F. The IUPAC name for HCFC141b is 1,1-dichloro-1-fluoroethane." label="AtmosphereMolesOfHcfc141B" title="Atmosphere Moles of Hcfc141B" uid="atmosphere_moles_of_hcfc141b" units="mol"></item> 17153 17133 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The surface called "surface" means the lower boundary of the atmosphere. The land_ice_surface_melt_flux is the loss of ice mass resulting from surface melting. For an area-average, the cell_methods attribute should be used to specify whether the average is over the area of the whole grid cell or the area of land ice only. There is also a standard name for the quantity surface_snow_and_ice_melt_flux." label="LandIceSurfaceMeltFlux" title="Land Ice Surface Melt Flux" uid="land_ice_surface_melt_flux" units="kg m-2 s-1"></item> 17154 <item description=" "Content" indicates a quantity per unit area." label="LeafCarbonContent" title="Leaf Carbon Content" uid="leaf_carbon_content" units="kg m-2"></item>17134 <item description="alias::leaf_carbon_content" label="LeafMassContentOfCarbon" title="Leaf Mass Content of Carbon [alias]" uid="leaf_carbon_content" units="kg m-2"></item> 17155 17135 <item description="alias::lwe_thickness_of_large_scale_snowfall_amount" label="LweThicknessOfStratiformSnowfallAmount" title="Lwe Thickness of Stratiform Snowfall Amount [alias]" uid="lwe_thickness_of_large_scale_snowfall_amount" units="m"></item> 17156 17136 <item description="The surface temperature is the (skin) temperature at the interface, not the bulk temperature of the medium above or below. "Sea ice surface temperature" is the temperature that exists at the interface of sea ice and an overlying medium which may be air or snow. In areas of snow covered sea ice, sea_ice_surface_temperature is not the same as the quantity with standard name surface_temperature." label="SeaIceSurfaceTemperature" title="Sea Ice Surface Temperature" uid="sea_ice_surface_temperature" units="K"></item> … … 17158 17138 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the particles. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. "Wet deposition" means deposition by precipitation. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfAtmosphereMassContentOfSeaSaltDryAerosolParticlesDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Sea Salt Dry Aerosol Particles due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_sea_salt_dry_aerosol_particles_due_to_wet_deposition" units="kg m-2 s-1"></item> 17159 17139 <item description="The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well." label="TendencyOfMassContentOfWaterVaporInAtmosphereLayerDueToShallowConvection" title="Tendency of Mass Content of Water Vapor in Atmosphere Layer due to Shallow Convection" uid="tendency_of_mass_content_of_water_vapor_in_atmosphere_layer_due_to_shallow_convection" units="kg m-2 s-1"></item> 17140 <item description="The effective radius of a size distribution of particles, such as aerosols, cloud droplets or ice crystals, is the area weighted mean radius of particle size. It is calculated as the ratio of the third to the second moment of the particle size distribution. The phrase "stratiform_liquid_water_cloud_top" refers to the top of the highest stratiform liquid water cloud. In an atmosphere model, stratiform cloud is that produced by large-scale convergence (not the convection schemes)." label="EffectiveRadiusOfStratiformCloudLiquidWaterParticleAtStratiformLiquidWaterCloudTop" title="Effective Radius of Stratiform Cloud Liquid Water Particle At Stratiform Liquid Water Cloud Top" uid="effective_radius_of_stratiform_cloud_liquid_water_particle_at_stratiform_liquid_water_cloud_top" units="m"></item> 17160 17141 <item description="alias::tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_due_to_turbulent_deposition" label="TendencyOfAtmosphereMassContentOfParticulateOrganicMatterDryAerosolParticlesDueToTurbulentDeposition" title="Tendency of Atmosphere Mass Content of Particulate Organic Matter Dry Aerosol Particles due to Turbulent Deposition [alias]" uid="tendency_of_atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_due_to_turbulent_deposition" units="kg m-2 s-1"></item> 17161 17142 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. The chemical formula for propene is C3H6. Propene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species. The "maritime transport" sector includes fuel combustion activities related to maritime transport. "Maritime transport" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 1A3d as defined in the 2006 IPCC guidelines for national greenhouse gas Inventories"." label="TendencyOfAtmosphereMassContentOfPropeneDueToEmissionFromMaritimeTransport" title="Tendency of Atmosphere Mass Content of Propene due to Emission from Maritime Transport" uid="tendency_of_atmosphere_mass_content_of_propene_due_to_emission_from_maritime_transport" units="kg m-2 s-1"></item> … … 17230 17211 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Sm" means the element "samarium" and "155Sm" is the isotope "samarium-155" with a half-life of 1.54e-02 days." label="RadioactivityConcentrationOf155SmInAir" title="Radioactivity Concentration of 155Sm in Air" uid="radioactivity_concentration_of_155Sm_in_air" units="Bq m-3"></item> 17231 17212 <item description="Richardson number is a measure of dynamic stability and can be used to diagnose the existence of turbulent flow. It is defined as the ratio of the buoyant suppression of turbulence (i.e. how statically stable or unstable the conditions are) to the kinetic energy available to generate turbulence in a shear flow." label="RichardsonNumberInSeaWater" title="Richardson Number in Sea Water" uid="richardson_number_in_sea_water" units="1"></item> 17213 <item description=""Content" indicates a quantity per unit area." label="RootMassContentOfCarbon" title="Root Mass Content of Carbon" uid="root_mass_content_of_carbon" units="kg m-2"></item> 17232 17214 <item description=""y" indicates a vector component along the grid y-axis, positive with increasing y. "Displacement" means the change in geospatial position of an object that has moved over time. If possible, the time interval over which the motion took place should be specified using a bounds variable for the time coordinate variable. A displacement can be represented as a vector. Such a vector should however not be interpreted as describing a rectilinear, constant speed motion but merely as an indication that the start point of the vector is found at the tip of the vector after the time interval associated with the displacement variable. A displacement does not prescribe a trajectory. Sea ice displacement can be defined as a two-dimensional vector, with no vertical component. A y displacement is calculated from the difference in the moving object's grid y coordinate between the start and end of the time interval associated with the displacement variable." label="SeaIceYDisplacement" title="Sea Ice Y Displacement" uid="sea_ice_y_displacement" units="m"></item> 17233 17215 <item description="sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the concentration of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]). In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings." label="SeaWaterPhNaturalAnalogueReportedOnTotalScale" title="Sea Water Ph Natural Analogue Reported on Total Scale" uid="sea_water_ph_natural_analogue_reported_on_total_scale" units="1"></item> … … 17319 17301 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Gd" means the element "gadolinium" and "159Gd" is the isotope "gadolinium-159" with a half-life of 7.71e-01 days." label="RadioactivityConcentrationOf159GdInAir" title="Radioactivity Concentration of 159Gd in Air" uid="radioactivity_concentration_of_159Gd_in_air" units="Bq m-3"></item> 17320 17302 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ra" means the element "radium" and "225Ra" is the isotope "radium-225" with a half-life of 1.48e+01 days." label="RadioactivityConcentrationOf225RaInAir" title="Radioactivity Concentration of 225Ra in Air" uid="radioactivity_concentration_of_225Ra_in_air" units="Bq m-3"></item> 17303 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Soil respiration is the sum of respiration in the soil by animals and decomposers of litter (heterotrophs or "consumers"), which have not produced the biomass they respire, and respiration by the roots of plants (autotrophs or "producers"), which have themselves produced the biomass they respire." label="SurfaceUpwardMassFluxOfCarbonDioxideExpressedAsCarbonDueToRespirationInSoil" title="Surface Upward Mass Flux of Carbon Dioxide Expressed As Carbon due to Respiration in Soil" uid="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_respiration_in_soil" units="kg m-2 s-1"></item> 17321 17304 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. In organic chemistry, a ketone is a compound with the structure RC(=O)R', where R and R' can be a variety of atoms and groups of atoms. It features a carbonyl group (C=O) bonded to two other carbon atoms. Acetone is the simplest example of a ketone. In standard names "ketones" is the term used to describe the group of ketone species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "forest fires" sector comprises the burning (natural and human-induced) of living or dead vegetation in forests. "Forest fires" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source category 5 as defined in the 2006 IPCC guidelines for national greenhouse gas Inventories"." label="TendencyOfAtmosphereMassContentOfKetonesDueToEmissionFromForestFires" title="Tendency of Atmosphere Mass Content of Ketones due to Emission from Forest Fires" uid="tendency_of_atmosphere_mass_content_of_ketones_due_to_emission_from_forest_fires" units="kg m-2 s-1"></item> 17322 17305 <item description="The "effective cloud top defined by infrared radiation" is (approximately) the geometric height above the surface that is one optical depth at infrared wavelengths (in the region of 11 micrometers) below the cloud top that would be detected by visible and lidar techniques. Reference: Minnis, P. et al 2011 CERES Edition-2 Cloud Property Retrievals Using TRMM VIRS and Terra and Aqua MODIS Data x2014; Part I: Algorithms IEEE Transactions on Geoscience and Remote Sensing, 49(11), 4374-4400. doi: http://dx.doi.org/10.1109/TGRS.2011.2144601." label="AirTemperatureAtEffectiveCloudTopDefinedByInfraredRadiation" title="Air Temperature At Effective Cloud Top Defined by Infrared Radiation" uid="air_temperature_at_effective_cloud_top_defined_by_infrared_radiation" units="K"></item> … … 17454 17437 <item description="alias::moisture_content_of_soil_layer" label="MassContentOfWaterInSoilLayer" title="Mass Content of Water in Soil Layer [alias]" uid="moisture_content_of_soil_layer" units="kg m-2"></item> 17455 17438 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, whereX is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemicalformula for methyl_peroxy_radical is CH3O2. In chemistry, a 'radical' is a highly reactive, and therefore shortlived, species." label="MoleFractionOfMethylPeroxyRadicalInAir" title="Mole Fraction of Methyl Peroxy Radical in Air" uid="mole_fraction_of_methyl_peroxy_radical_in_air" units="1"></item> 17456 <item description=""Northward" indicates a vector component which is positive when directed northward (negative southward). " label="NorthwardTransformedEulerianMeanAirVelocity" title="Northward Transformed Eulerian Mean Air Velocity" uid="northward_transformed_eulerian_mean_air_velocity" units="m s-1"></item>17439 <item description=""Northward" indicates a vector component which is positive when directed northward (negative southward). The "Transformed Eulerian Mean" refers to a formulation of the mean equations which incorporates some eddy terms into the definition of the mean, described in Andrews et al (1987): Middle Atmospheric Dynamics. Academic Press." label="NorthwardTransformedEulerianMeanAirVelocity" title="Northward Transformed Eulerian Mean Air Velocity" uid="northward_transformed_eulerian_mean_air_velocity" units="m s-1"></item> 17457 17440 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Y" means the element "yttrium" and "90Y" is the isotope "yttrium-90" with a half-life of 2.67e+00 days." label="RadioactivityConcentrationOf90YInAir" title="Radioactivity Concentration of 90Y in Air" uid="radioactivity_concentration_of_90Y_in_air" units="Bq m-3"></item> 17458 17441 <item description="" label="SeaIceMass" title="Sea Ice Mass" uid="sea_ice_mass" units="kg"></item> 17459 <item description="'Mole concentration' means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic phosphorus" means the sum of all inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid)." label="TendencyOfMoleConcentrationOfDissolvedInorganicPhosphorusInSeaWaterDueToBiologicalProcesses" title="Tendency of Mole Concentration of Dissolved Inorganic Phosphorus in Sea Water due to Biological Processes" uid="tendency_of_mole_concentration_of_dissolved_inorganic_phosphorus_in_sea_water_due_to_biological_processes" units="mol m-3 s-1"></item>17460 17442 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Ag" means the element "silver" and "110mAg" is the metastable state of the isotope "silver-110" with a half-life of 2.70e+02 days." label="SurfaceRadioactivityContentOf110Mag" title="Surface Radioactivity Content of 110Mag" uid="surface_radioactivity_content_of_110mAg" units="Bq m-2"></item> 17461 17443 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Bi" means the element "bismuth" and "213Bi" is the isotope "bismuth-213" with a half-life of 3.26e-02 days." label="SurfaceRadioactivityContentOf213Bi" title="Surface Radioactivity Content of 213Bi" uid="surface_radioactivity_content_of_213Bi" units="Bq m-2"></item> 17444 <item description="'Mole concentration' means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic phosphorus" means the sum of all inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid)." label="TendencyOfMoleConcentrationOfDissolvedInorganicPhosphorusInSeaWaterDueToBiologicalProcesses" title="Tendency of Mole Concentration of Dissolved Inorganic Phosphorus in Sea Water due to Biological Processes" uid="tendency_of_mole_concentration_of_dissolved_inorganic_phosphorus_in_sea_water_due_to_biological_processes" units="mol m-3 s-1"></item> 17462 17445 <item description=""tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of sigma plays the role of the upward component of air velocity when the atmosphere sigma coordinate (a dimensionless atmosphere vertical coordinate) is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of sigma; downwards is positive. See Appendix D of the CF convention for information about dimensionless vertical coordinates." label="LagrangianTendencyOfAtmosphereSigmaCoordinate" title="Lagrangian Tendency of Atmosphere Sigma Coordinate" uid="lagrangian_tendency_of_atmosphere_sigma_coordinate" units="s-1"></item> 17463 17446 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Te" means the element "tellurium" and "129Te" is the isotope "tellurium-129" with a half-life of 4.86e-02 days." label="RadioactivityConcentrationOf129TeInAir" title="Radioactivity Concentration of 129Te in Air" uid="radioactivity_concentration_of_129Te_in_air" units="Bq m-3"></item> … … 17479 17462 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "U" means the element "uranium" and "235U" is the isotope "uranium-235" with a half-life of 2.60e+11 days." label="SurfaceRadioactivityContentOf235U" title="Surface Radioactivity Content of 235U" uid="surface_radioactivity_content_of_235U" units="Bq m-2"></item> 17480 17463 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Br" means the element "bromine" and "84mBr" is the metastable state of the isotope "bromine-84" with a half-life of 4.16e-03 days." label="SurfaceRadioactivityContentOf84Mbr" title="Surface Radioactivity Content of 84Mbr" uid="surface_radioactivity_content_of_84mBr" units="Bq m-2"></item> 17464 <item description=""Content" indicates a quantity per unit area." label="LeafMassContentOfCarbon" title="Leaf Mass Content of Carbon" uid="leaf_mass_content_of_carbon" units="kg m-2"></item> 17481 17465 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Bi" means the element "bismuth" and "209Bi" is the isotope "bismuth-209" with a half-life of 7.29e+20 days." label="SurfaceRadioactivityContentOf209Bi" title="Surface Radioactivity Content of 209Bi" uid="surface_radioactivity_content_of_209Bi" units="Bq m-2"></item> 17482 17466 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The mass is the total mass of the molecules. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Emission" means emission from a primary source located anywhere within the atmosphere, including at the lower boundary (i.e. earth's surface). "Emission" is a process entirely distinct from "re-emission" which is used in some standard names. An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group -COOH. In standard names "organic_acids" is the term used to describe the group of organic acid species that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The "energy production and distribution" sector comprises fuel combustion activities related to energy industries and fugitive emissions from fuels. It may also include any not-classified or "other" combustion, which is commonly included in energy-related inventory data. "Energy production and distribution" is the term used in standard names to describe a collection of emission sources. A variable which has this value for the standard_name attribute should be accompanied by a comment attribute which lists the source categories and provides a reference to the categorization scheme, for example, "IPCC (Intergovernmental Panel on Climate Change) source categories 1A1 and 1B as defined in the 2006 IPCC guidelines for national greenhouse gas inventories"." label="TendencyOfAtmosphereMassContentOfOrganicAcidsDueToEmissionFromEnergyProductionAndDistribution" title="Tendency of Atmosphere Mass Content of Organic Acids due to Emission from Energy Production And Distribution" uid="tendency_of_atmosphere_mass_content_of_organic_acids_due_to_emission_from_energy_production_and_distribution" units="kg m-2 s-1"></item> … … 17495 17479 <item description="alias::ocean_mixed_layer_thickness_defined_by_vertical_tracer_diffusivity" label="OceanMixedLayerThicknessDefinedByVerticalTracerDiffusivityDeficit" title="Ocean Mixed Layer Thickness Defined by Vertical Tracer Diffusivity Deficit [alias]" uid="ocean_mixed_layer_thickness_defined_by_vertical_tracer_diffusivity" units="m"></item> 17496 17480 <item description="sensor_band_central_radiation_frequency is the central frequency of a sensor's band, calculated as the first moment of the band's normalized spectral response function." label="SensorBandCentralRadiationFrequency" title="Sensor Band Central Radiation Frequency" uid="sensor_band_central_radiation_frequency" units="s-1"></item> 17481 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for methane is CH4. Methane is a member of the group of hydrocarbons known as alkanes. There are standard names for the alkane group as well as for some of the individual species." label="AtmosphereMolesOfMethane" title="Atmosphere Moles of Methane" uid="atmosphere_moles_of_methane" units="mol"></item> 17482 <item description="The optical thickness is the integral along the path of radiation of a volume scattering/absorption/attenuation coefficient. The radiative flux is reduced by a factor exp(-"optical_thickness") on traversing the path. The atmosphere optical thickness applies to radiation passing through the entire atmosphere. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity and temperature at which the quantity described by the standard name applies, provide scalar coordinate variables with standard names of "relative_humidity" and "air_temperature". The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The chemical formula for the nitrate anion is NO3-." label="AtmosphereOpticalThicknessDueToNitrateAmbientAerosolParticles" title="Atmosphere Optical Thickness due to Nitrate Ambient Aerosol Particles" uid="atmosphere_optical_thickness_due_to_nitrate_ambient_aerosol_particles" units="1"></item> 17483 <item description=""Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock and also includes ice-shelves. The horizontal domain over which the quantity is calculated is described by the associated coordinate variables and coordinate bounds or by a coordinate variable or scalar coordinate variable with the standard name of "region" supplied according to section 6.1.1 of the CF conventions." label="LandIceMass" title="Land Ice Mass" uid="land_ice_mass" units="kg"></item> 17484 <item description="Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection." label="OceanTracerDiffusivityDueToParameterizedMesoscaleEddyAdvection" title="Ocean Tracer Diffusivity due to Parameterized Mesoscale Eddy Advection" uid="ocean_tracer_diffusivity_due_to_parameterized_mesoscale_eddy_advection" units="m2 s-1"></item> 17485 <item description=""Eastward" indicates a vector component which is positive when directed eastward (negative westward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="EastwardWaterVaporFluxInAir" title="Eastward Water Vapor Flux in Air" uid="eastward_water_vapor_flux_in_air" units="kg m-2 s-1"></item> 17486 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). Convective cloud is that produced by the convection schemes in an atmosphere model." label="MassFractionOfConvectiveCloudIceInAir" title="Mass Fraction of Convective Cloud Ice in Air" uid="mass_fraction_of_convective_cloud_ice_in_air" units="1"></item> 17487 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. Convective cloud is that produced by the convection schemes in an atmosphere model." label="AtmosphereMassContentOfConvectiveCloudIce" title="Atmosphere Mass Content of Convective Cloud Ice" uid="atmosphere_mass_content_of_convective_cloud_ice" units="kg m-2"></item> 17488 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Nd" means the element "neodymium" and "144Nd" is the isotope "neodymium-144" with a half-life of 7.64e+17 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf144NdInAir" title="Integral Wrt Time of Radioactivity Concentration of 144Nd in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_144Nd_in_air" units="Bq s m-3"></item> 17489 <item description="Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constiuents of A." label="NetPrimaryProductionOfBiomassExpressedAsCarbonPerUnitVolumeInSeaWater" title="Net Primary Production of Biomass Expressed As Carbon Per Unit Volume in Sea Water" uid="net_primary_production_of_biomass_expressed_as_carbon_per_unit_volume_in_sea_water" units="kg m-3 s-1"></item> 17490 <item description="Transport "across_line" means that which crosses a particular line on the Earth's surface; formally this means the integral along the line of the normal component of the transport." label="OceanVolumeTransportAcrossLine" title="Ocean Volume Transport Across Line" uid="ocean_volume_transport_across_line" units="m3 s-1"></item> 17491 <item description="The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second." label="SurfaceRadioactivityContent" title="Surface Radioactivity Content" uid="surface_radioactivity_content" units=""></item> 17492 <item description="The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same." label="TendencyOfSeaWaterSalinityExpressedAsSaltContentDueToParameterizedEddyAdvection" title="Tendency of Sea Water Salinity Expressed As Salt Content due to Parameterized Eddy Advection" uid="tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_eddy_advection" units="kg m-2 s-1"></item> 17493 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Po" means the element "polonium" and "212Po" is the isotope "polonium-212" with a half-life of 3.52e-12 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf212PoInAir" title="Integral Wrt Time of Radioactivity Concentration of 212Po in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_212Po_in_air" units="Bq s m-3"></item> 17494 <item description="The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". "Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Bk" means the element "berkelium" and "250Bk" is the isotope "berkelium-250" with a half-life of 1.34e-01 days." label="IntegralWrtTimeOfRadioactivityConcentrationOf250BkInAir" title="Integral Wrt Time of Radioactivity Concentration of 250Bk in Air" uid="integral_wrt_time_of_radioactivity_concentration_of_250Bk_in_air" units="Bq s m-3"></item> 17495 <item description="alias::upwelling_spectral_radiative_flux_in_air" label="UpwellingRadiativeFluxPerUnitWavelengthInAir" title="Upwelling Radiative Flux Per Unit Wavelength in Air [alias]" uid="upwelling_spectral_radiative_flux_in_air" units="W m-2 m-1"></item> 17496 <item description="'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis." label="MoleConcentrationOfPhytoplanktonExpressedAsSiliconInSeaWater" title="Mole Concentration of Phytoplankton Expressed As Silicon in Sea Water" uid="mole_concentration_of_phytoplankton_expressed_as_silicon_in_sea_water" units="mol m-3"></item> 17497 <item description="alias::moles_of_methyl_bromide_in_atmosphere" label="AtmosphereMolesOfMethylBromide" title="Atmosphere Moles of Methyl Bromide [alias]" uid="moles_of_methyl_bromide_in_atmosphere" units="mol"></item> 17498 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Wet deposition" means deposition by precipitation." label="TendencyOfAtmosphereMassContentOfAmmoniaDueToWetDeposition" title="Tendency of Atmosphere Mass Content of Ammonia due to Wet Deposition" uid="tendency_of_atmosphere_mass_content_of_ammonia_due_to_wet_deposition" units="kg m-2 s-1"></item> 17499 <item description="The construction "atmosphere_moles_of_X" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for isoprene is CH2=C(CH3)CH=CH2. The IUPAC name for isoprene is 2-methyl-buta-1,3-diene. Isoprene is a member of the group of hydrocarbons known as terpenes. There are standard names for the terpene group as well as for some of the individual species." label="AtmosphereMolesOfIsoprene" title="Atmosphere Moles of Isoprene" uid="atmosphere_moles_of_isoprene" units="mol"></item> 17500 <item description=""Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "La" means the element "lanthanum" and "141La" is the isotope "lanthanum-141" with a half-life of 1.61e-01 days." label="RadioactivityConcentrationOf141LaInAir" title="Radioactivity Concentration of 141La in Air" uid="radioactivity_concentration_of_141La_in_air" units="Bq m-3"></item> 17501 <item description="The surface called "surface" means the lower boundary of the atmosphere. Downwelling radiation is radiation from above. It does not mean "net downward". "Photosynthetic" radiation is the part of the spectrum which is used in photosynthesis e.g. 400-700 nm. The range of wavelengths could be specified precisely by the bounds of a coordinate of radiation_wavelength. A photon flux is specified in terms of numbers of photons expressed in moles. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics." label="SurfaceDownwellingPhotosyntheticPhotonFluxInSeaWater" title="Surface Downwelling Photosynthetic Photon Flux in Sea Water" uid="surface_downwelling_photosynthetic_photon_flux_in_sea_water" units="mol m-2 s-1"></item> 17502 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "tendency_of_X" means derivative of X with respect to time." label="TendencyOfMoleConcentrationOfParticulateOrganicMatterExpressedAsCarbonInSeaWaterDueToNetPrimaryProductionByPicophytoplankton" title="Tendency of Mole Concentration of Particulate Organic Matter Expressed As Carbon in Sea Water due to Net Primary Production by Picophytoplankton" uid="tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_picophytoplankton" units="mol m-3 s-1"></item> 17503 <item description=""Content" indicates a quantity per unit area. "Water" means water in all phases. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be "model_level_number", but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Quantities defined for a soil layer must have a vertical coordinate variable with boundaries indicating the extent of the layer(s)." label="MassContentOfWaterInSoilLayer" title="Mass Content of Water in Soil Layer" uid="mass_content_of_water_in_soil_layer" units="kg m-2"></item> 17504 <item description="Mass fraction is used in the construction mass_fraction_of_X_in_Y, whereX is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chemical formula for hydrogen peroxide is H2O2." label="MassFractionOfHydrogenPeroxideInAir" title="Mass Fraction of Hydrogen Peroxide in Air" uid="mass_fraction_of_hydrogen_peroxide_in_air" units="1"></item> 17505 <item description="Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'." label="MoleConcentrationOfPhosphateInSeaWater" title="Mole Concentration of Phosphate in Sea Water" uid="mole_concentration_of_phosphate_in_sea_water" units="mol m-3"></item> 17506 <item description="alias::net_primary_mole_productivity_of_carbon_by_miscellaneous_phytoplankton" label="NetPrimaryMoleProductivityOfBiomassExpressedAsCarbonByMiscellaneousPhytoplankton" title="Net Primary Mole Productivity of Biomass Expressed As Carbon by Miscellaneous Phytoplankton [alias]" uid="net_primary_mole_productivity_of_carbon_by_miscellaneous_phytoplankton" units="mol m-2 s-1"></item> 17507 <item description="alias::tendency_of_atmosphere_mass_content_of_seasalt_dry_aerosol_particles_due_to_gravitational_settling" label="TendencyOfAtmosphereMassContentOfSeaSaltDryAerosolParticlesDueToGravitationalSettling" title="Tendency of Atmosphere Mass Content of Sea Salt Dry Aerosol Particles due to Gravitational Settling [alias]" uid="tendency_of_atmosphere_mass_content_of_seasalt_dry_aerosol_particles_due_to_gravitational_settling" units="kg m-2 s-1"></item> 17508 <item description=""tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Vertical mixing" means any vertical transport other than by advection and parameterized eddy advection, represented by a combination of vertical diffusion, turbulent mixing and convection in ocean models. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990." label="TendencyOfSeaWaterTemperatureDueToVerticalMixing" title="Tendency of Sea Water Temperature due to Vertical Mixing" uid="tendency_of_sea_water_temperature_due_to_vertical_mixing" units="K s-1"></item> 17497 17509 </standardname> 17498 17510 <varChoiceLinkR id="vclr" label="varChoiceLinkR" title="3.9 Links a variable to a choice element" uid="SECTION:varChoiceLinkR" useClass="vocab"> … … 17506 17518 <!-- <info srcType="dummy" srcRef="ptxt.py">Dummy entries</info> --> 17507 17519 <item description="Convective cloud area fraction for the whole atmospheric column, as seen from the surface or the top of the atmosphere. Includes only convective cloud." label="cltc" procComment="" procnote="" prov="CFMIP" provmip="CFMIP" sn="convective_cloud_area_fraction" title="Convective Cloud Cover Percentage" uid="4e6ce0bc3ad0814b4c0523304965513f" unid="fd6ee984-3468-11e6-ba71-5404a60d96b5" units="%"></item> 17508 <item description=" The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Carbon13 is a stable isotope of carbon having six protons and seven neutrons." label="fg13co2" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13" title="Total air-sea flux of 13CO2" uid="590e5b82-9e49-11e5-803c-0d0b866b59f3" unid="fd72349a-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item>17520 <item description="alias::surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13" label="fg13co2" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13" title="Total air-sea flux of 13CO2" uid="590e5b82-9e49-11e5-803c-0d0b866b59f3" unid="fd72349a-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17509 17521 <item description="Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction." label="nLitter" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="litter_nitrogen_content" title="Nitrogen Mass in Litter Pool" uid="590e70f4-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item> 17510 17522 <item description="Mole concentration of dimethyl sulphide in water" label="dmso" procComment="" procnote="" prov="CMIP6 endorsement [OMIP]" provmip="OMIP" sn="mole_concentration_of_dimethyl_sulfide_in_sea_water" title="Dimethyl Sulphide Concentration" uid="bdce9878-233e-11e6-a788-5404a60d96b5" unid="fd723bf2-3468-11e6-ba71-5404a60d96b5" units="mol m-3"></item> … … 17546 17558 <item description="Store flux as Nitrogen. Anthropogenic fraction. NOx=NO+NO2, Includes agricultural waste burning but no other biomass burning. Integrate 3D emission field vertically to 2d field." label="emianox" procComment="" procnote="vi" prov="CCMI1_monthly" provmip="CCMI" sn="tendency_of_atmosphere_mass_content_of_nox_expressed_as_nitrogen_due_to_emission" title="anthropogenic emission rate of nox" uid="691673a210102ac652eed2b784dd2ab4" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17547 17559 <item description="The net mass flux should represent the difference between the updraft and downdraft components. The flux is computed as the mass divided by the area of the grid cell." label="mc" procComment="" procnote="" prov="CMIP5_Amon,CMIP5_CFday,CMIP5_CFsubhr,PMIP3_Aclim,PMIP3_Amon" provmip="CMIP5" sn="atmosphere_net_upward_convective_mass_flux" title="Convective Mass Flux" uid="6d790fe4caa7feff46a41ae7b3811e52" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17548 <item description="relative to total land area of a grid cell, not relative to agricultural area" label="fNfert" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn=" fertiliser_of_nitrogen_onto_land" title="total N added for cropland fertilisation (artificial and manure)" uid="84f09af8-acb7-11e6-b5ee-ac72891c3257" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item>17560 <item description="relative to total land area of a grid cell, not relative to agricultural area" label="fNfert" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn="tendency_of_soil_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_fertilization" title="total N added for cropland fertilisation (artificial and manure)" uid="84f09af8-acb7-11e6-b5ee-ac72891c3257" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17549 17561 <item description="dry deposition includes gravitational settling, impact scavenging, and turbulent deposition" label="drynh3" procComment="" procnote="" prov="CCMI1_monthly" provmip="CCMI" sn="tendency_of_atmosphere_mass_content_of_ammonia_due_to_dry_deposition" title="Dry Deposition Rate of nh3" uid="9fd5c69c5f00bd2434436f2e9033f545" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17550 17562 <item description="Convective precipitation at surface; includes both liquid and solid phases." label="prc" procComment="" procnote="" prov="CMIP5_Amon,CMIP5_CF3hr,CMIP5_CFsubhr,CMIP5_day,CORDEX_3h,CORDEX_day,PMIP3_Aclim,PMIP3_Amon,PMIP3_day,SPECS_Amon,SPECS_day" provmip="CMIP5" sn="convective_precipitation_flux" title="Convective Precipitation" uid="aa2bea81f238ad8f2c35a7e16ad97801" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> … … 17563 17575 <item description="The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. Aragonite is a mineral that is a polymorph of calcium carbonate. The chemical formula of aragonite is CaCO3. Standard names also exist for calcite, another polymorph of calcium carbonate." label="eparag100" procComment="" procnote="" prov="CMIP5,C4MIP,LS3MIP" provmip="CMIP5" sn="sinking_mole_flux_of_aragonite_expressed_as_carbon_in_sea_water" title="Downward Flux of Aragonite" uid="f43d7527cd48c992f075339b2bbbf9ef" unid="fd72349a-3468-11e6-ba71-5404a60d96b5" units="mol m-2 s-1"></item> 17564 17576 <item description="" label="albdirbnd" procComment="" procnote="" prov="CMIP6 endorsement [RFMIP]" provmip="RFMIP" sn="surface_spectral_hemispherical_reflectance_of_direct_shortwave_radiation" title="Direct surface albedo for each band" uid="590f3f16-9e49-11e5-803c-0d0b866b59f3" unid="fd6fef50-3468-11e6-ba71-5404a60d96b5" units="1"></item> 17565 <item description="" label="gppc13" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="gross_primary_productivity_of_ c13" title="Mass Flux of 13C out of Atmosphere due to Gross Primary Production on Land" uid="590f9ace-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item>17577 <item description="" label="gppc13" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="gross_primary_productivity_of_biomass_expressed_as_13C" title="Mass Flux of 13C out of Atmosphere due to Gross Primary Production on Land" uid="590f9ace-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17566 17578 <item description="Total mass balance at the ice front (or vertical margin). It includes both iceberg calving and melt on vertical ice front" label="lifmassbf" procComment="" procnote="" prov="CMIP6 endorsement [ISMIP6]" provmip="ISMIP6" sn="land_ice_specific_mass_flux_due_to_calving_and_ice_front_melting" title="Land ice vertical front mass balance flux" uid="59130394-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17567 17579 <item description="cumulative fractional transitions over the year; note that fraction should be reported as fraction of atmospheric grid cell" label="fracInLut" procComment="" procnote="" prov="CMIP6 endorsement [LUMIP]" provmip="LUMIP" sn="area_fraction" title="annual gross fraction that was transferred into this tile from other land use tiles" uid="59177b18-9e49-11e5-803c-0d0b866b59f3" unid="fd6ee984-3468-11e6-ba71-5404a60d96b5" units="%"></item> … … 17573 17585 <item description="negative log10 of hydrogen ion concentration with the concentration expressed as mol H kg-1." label="phnatos" procComment="" procnote="" prov="CMIP6 Endorsement [OMIP]" provmip="OMIP" sn="sea_water_ph_natural_analogue_reported_on_total_scale" title="Surface Natural pH" uid="c96d8090-c5f0-11e6-ac20-5404a60d96b5" unid="fd6fef50-3468-11e6-ba71-5404a60d96b5" units="1"></item> 17574 17586 <item description="NOy is the sum of all simulated oxidized nitrogen species, out of NO, NO2, HNO3, HNO4, NO3aerosol, NO3(radical), N2O5, PAN, other organic nitrates." label="wetnoy" procComment="" procnote="" prov="CCMI1_monthly" provmip="CCMI" sn="tendency_of_atmosphere_mass_content_of_noy_expressed_as_nitrogen_due_to_wet_deposition" title="wet deposition of noy incl aerosol nitrate" uid="ecfae3e2adc49321ec4c9d664fd425ec" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17575 <item description=""Northward" indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)" label="va" procComment="" procnote="" prov="CMIP5_6hrLev,CMIP5_6hrPlev,CMIP5_Amon,CMIP5_CFday,CMIP5_CFsubhr,CMIP5_day,PMIP3_Aclim,PMIP3_Amon,PMIP3_day,SPECS_Amon,SPECS_day" provmip="CMIP5" sn="northward_wind" title="Northward Wind" uid="2dedcb347c18e132a2f4d625abf94585" unid="fd71a7c8-3468-11e6-ba71-5404a60d96b5" units="m s-1"></item>17576 17587 <item description="The mean thickness of the permafrost layer in the land portion of the grid cell. Reported as zero in permafrost-free regions." label="tpf" procComment="" procnote="" prov="CMIP5_LImon,PMIP3_LIclim,PMIP3_LImon" provmip="CMIP5" sn="permafrost_layer_thickness" title="Permafrost Layer Thickness" uid="3e437daab5bc69123a859ad361babc59" unid="fd719698-3468-11e6-ba71-5404a60d96b5" units="m"></item> 17577 17588 <item description=""tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "residual_mean_advection" refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes." label="ocontemprmadvect" procComment="" procnote="" prov="CMIP6 endorsement [FAFMIP]" provmip="FAFMIP" sn="tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_residual_mean_advection" title="Tendency of Sea Water Conservative Temperature Expressed as Heat Content due to Residual Mean Advection" uid="479c5de8-12cc-11e6-b2bc-ac72891c3257" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17578 17589 <item description="the net sensible heat flux over sea ice" label="siflsenstop" procComment="" procnote="si" prov="CMIP6 endorsement [SIMIP]" provmip="SIMIP" sn="surface_upward_sensible_heat_flux" title="Net upward sensible heat flux over sea ice" uid="590dbb78-9e49-11e5-803c-0d0b866b59f3" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17579 17590 <item description="X-component of force on sea ice caused by internal stress (divergence of sigma)" label="siforceintstrx" procComment="" procnote="si" prov="CMIP6 endorsement [SIMIP]" provmip="SIMIP" sn="sea_ice_specific_x_force_due_to_internal_forces" title="Internal stress term in force balance (x-component)" uid="590df8a4-9e49-11e5-803c-0d0b866b59f3" unid="fd708bf4-3468-11e6-ba71-5404a60d96b5" units="N m-2"></item> 17580 <item description=" " label="fNdep" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn="deposition_of_nitrogen_onto_land" title="Dry and Wet Deposition of Reactive Nitrogen onto Land" uid="5913bfe6-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item>17581 <item description="Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction." label="nLand" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn=" total_land_nitrogen" title="Total nitrogen in all terrestrial nitrogen pools" uid="59142e0e-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item>17591 <item description=""Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Deposition" is the sum of wet and dry deposition. "Nitrogen compounds" summarizes all chemical species containing nitrogen atoms. Usually, particle bound and gaseous nitrogen compounds, such as atomic nitrogen (N), nitrogen monoxide (NO), nitrogen dioxide (NO2), dinitrogen pentoxide (N2O5), nitric acid (HNO3), nitrate (NO3-), peroxynitric acid (HNO4), ammonia (NH3), ammonium (NH4+), bromine nitrate (BrONO2), chlorine nitrate (ClONO2) and organic nitrates (most notably peroxyacetyl nitrate, sometimes referred to as PAN, (CH3COO2NO2)) are included. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute." label="fNdep" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn="tendency_of_atmosphere_mass_content_of_nitrogen_compounds_expressed_as_nitrogen_due_to_deposition" title="Dry and Wet Deposition of Reactive Nitrogen onto Land" uid="5913bfe6-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17592 <item description="Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction." label="nLand" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="mass_content_of_nitrogen_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products" title="Total nitrogen in all terrestrial nitrogen pools" uid="59142e0e-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item> 17582 17593 <item description="Diagnostic should be contributed only for models using conservative temperature as prognostic field." label="bigthetaoga" procComment="" procnote="" prov="OMIP_Omon" provmip="OMIP" sn="sea_water_conservative_temperature" title="Global Average Sea Water Conservative Temperature" uid="6901f6894f7382d628084809e7208c4b" unid="fd70db36-3468-11e6-ba71-5404a60d96b5" units="degC"></item> 17583 17594 <item description="total alkalinity equivalent concentration (including carbonate, borate, phosphorus, silicon, and nitrogen components) at preindustrial atmospheric xCO2" label="talknat" procComment="" procnote="" prov="OMIP_Omon" provmip="OMIP" sn="sea_water_alkalinity_natural_analogue_expressed_as_mole_equivalent" title="Natural Total Alkalinity" uid="ba20ea537eb672813c5a364655855b38" unid="fd723bf2-3468-11e6-ba71-5404a60d96b5" units="mol m-3"></item> 17584 17595 <item description="AOD from the ambient aerosols (i.e., includes aerosol water). Does not include AOD from stratospheric aerosols if these are prescribed but includes other possible background aerosol types. Needs a comment attribute "wavelength: 440 nm"" label="od440aer" procComment="" procnote="" prov="CCMI1_monthly" provmip="CCMI" sn="atmosphere_optical_thickness_due_to_ambient_aerosol_particles" title="ambient aerosol optical thickness at 440 nm" uid="c5331238e635e9c913da1eb247859206" unid="fd6fef50-3468-11e6-ba71-5404a60d96b5" units="1"></item> 17596 <item description=""Northward" indicates a vector component which is positive when directed northward (negative southward). Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.)" label="va" procComment="" procnote="" prov="CMIP5_6hrLev,CMIP5_6hrPlev,CMIP5_Amon,CMIP5_CFday,CMIP5_CFsubhr,CMIP5_day,PMIP3_Aclim,PMIP3_Amon,PMIP3_day,SPECS_Amon,SPECS_day" provmip="CMIP5" sn="northward_wind" title="Northward Wind" uid="2dedcb347c18e132a2f4d625abf94585" unid="fd71a7c8-3468-11e6-ba71-5404a60d96b5" units="m s-1"></item> 17585 17597 <item description="Mean vorticity over 850,700,600 hPa" label="vortmean" procComment="" procnote="" prov="CMIP6 endorsement [HighResMIP]" provmip="HighResMIP" sn="atmosphere_relative_vorticity" title="atmosphere_relative_vorticity" uid="59152e1c-9e49-11e5-803c-0d0b866b59f3" unid="fd7288c8-3468-11e6-ba71-5404a60d96b5" units="s-1"></item> 17586 <item description=" Total liquid water storage, other than soil, snow or interception storage (i.e. lakes, river channel or depression storage)." label="sw" procComment="" procnote="" prov="CMIP6 endorsement [LS3MIP]" provmip="LS3MIP" sn="surface_water_amount_assuming_no_snow" title="Surface Water Storage" uid="590eaf60-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item>17598 <item description="Zonal wind at 100m height" label="ua100m" procComment="" procnote="" prov="VIACSAB" provmip="VIACSAB" sn="eastward_wind" title="Eastward Wind at 100m" uid="0117314a-b8b2-11e6-a189-5404a60d96b5" unid="fd71a7c8-3468-11e6-ba71-5404a60d96b5" units="m s-1"></item> 17587 17599 <item description="The "aerodynamic_resistance" is the resistance to mixing through the boundary layer toward the surface by means of the dominant process, turbulent transport. Reference: Wesely, M. L., 1989, doi:10.1016/0004-6981(89)90153-4." label="ares" procComment="" procnote="" prov="CMIP6 endorsement [LS3MIP]" provmip="LS3MIP" sn="aerodynamic_resistance" title="Aerodynamic resistance" uid="59176628-9e49-11e5-803c-0d0b866b59f3" unid="fd728134-3468-11e6-ba71-5404a60d96b5" units="s m-1"></item> 17588 <item description="Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction." label="cLand" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn=" total_land_carbon" title="Total Carbon in All Terrestrial Carbon Pools" uid="5917aa7a-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item>17600 <item description="Report missing data over ocean grid cells. For fractional land report value averaged over the land fraction." label="cLand" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="mass_content_of_carbon_in_vegetation_and_litter_and_soil_and_forestry_and_agricultural_products" title="Total Carbon in All Terrestrial Carbon Pools" uid="5917aa7a-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item> 17589 17601 <item description="'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with a charge of minus two." label="co3" procComment="" procnote="" prov="OMIP.Omon" provmip="OMIP" sn="mole_concentration_of_carbonate_expressed_as_carbon_in_sea_water" title="Carbonate Ion Concentration" uid="9791ce56083fe450761a27a7dc158225" unid="fd723bf2-3468-11e6-ba71-5404a60d96b5" units="mol m-3"></item> 17590 17602 <item description="sum of bacterial carbon component concentrations" label="baccos" procComment="" procnote="" prov="CMIP6 Endorsement [OMIP]" provmip="OMIP" sn="mole_concentration_of_bacteria_expressed_as_carbon_in_sea_water" title="Surface Bacterial Carbon Concentration" uid="c96caa26-c5f0-11e6-ac20-5404a60d96b5" unid="fd723bf2-3468-11e6-ba71-5404a60d96b5" units="mol m-3"></item> … … 17596 17608 <item description="Overturning mass streamfunction arising from all advective mass transport processes, resolved and parameterized." label="msftmrho" procComment="" procnote="" prov="OMIP_Omon" provmip="OMIP" sn="ocean_meridional_overturning_mass_streamfunction" title="Ocean Meridional Overturning Mass Streamfunction" uid="faeffb2438794e8400143533d61d1623" unid="fd716830-3468-11e6-ba71-5404a60d96b5" units="kg s-1"></item> 17597 17609 <item description="Mole fraction is used in the construction "mole_fraction_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". Acetone is an organic molecule with the chemical formula CH3CH3CO. The IUPAC name for acetone is propan-2-one. Acetone is a member of the group of organic compounds known as ketones. There are standard names for the ketone group as well as for some of the individual species." label="ch3coch3" procComment="" procnote="" prov="AerChemMIP endorsement (1)" provmip="AerChemMIP" sn="mole_fraction_of_acetone_in_air" title="CH3COCH3 volume mixing ratio" uid="fe6c8d8e-a41f-11e5-9025-ac72891c3257" unid="fd724b4c-3468-11e6-ba71-5404a60d96b5" units="mol mol-1"></item> 17598 <item description=" Zonal wind at 100m height" label="ua100m" procComment="" procnote="" prov="VIACSAB" provmip="VIACSAB" sn="eastward_wind" title="Eastward Wind at 100m" uid="0117314a-b8b2-11e6-a189-5404a60d96b5" unid="fd71a7c8-3468-11e6-ba71-5404a60d96b5" units="m s-1"></item>17610 <item description="Total liquid water storage, other than soil, snow or interception storage (i.e. lakes, river channel or depression storage)." label="sw" procComment="" procnote="" prov="CMIP6 endorsement [LS3MIP]" provmip="LS3MIP" sn="surface_water_amount_assuming_no_snow" title="Surface Water Storage" uid="590eaf60-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item> 17599 17611 <item description="The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid." label="epc100" procComment="" procnote="" prov="OMIP" provmip="OMIP" sn="sinking_mole_flux_of_particulate_organic_matter_expressed_as_carbon_in_sea_water" title="Downward Flux of Particulate Organic Carbon" uid="4500aac3ce5985eff562e6a170a88574" unid="fd72349a-3468-11e6-ba71-5404a60d96b5" units="mol m-2 s-1"></item> 17600 17612 <item description="carbon from the diatom phytoplankton component concentration alone" label="phydiat" procComment="" procnote="" prov="CMIP5,C4MIP,HighResMIP,LS3MIP,PMIP" provmip="CMIP5" sn="mole_concentration_of_diatoms_expressed_as_carbon_in_sea_water" title="Mole Concentration of Diatoms expressed as Carbon in Sea Water" uid="5880ab9386066d5d620774a46840cc25" unid="fd723bf2-3468-11e6-ba71-5404a60d96b5" units="mol m-3"></item> … … 17658 17670 <item description="u*u" label="u2" procComment="" procnote="" prov="CMIP6 endorsement [HighResMIP]" provmip="HighResMIP" sn="square_of_eastward_wind" title="square_of_eastward_wind" uid="59175dc2-9e49-11e5-803c-0d0b866b59f3" unid="fd71eed6-3468-11e6-ba71-5404a60d96b5" units="m2 s-2"></item> 17659 17671 <item description="The net mass flux represents the difference between the updraft and downdraft components. For models with a distinct shallow convection scheme, this is calculated as convective mass flux divided by the area of the whole grid cell (not just the area of the cloud)." label="smc" procComment="" procnote="" prov="CMIP5_CFmon" provmip="CMIP5" sn="atmosphere_net_upward_shallow_convective_mass_flux" title="Shallow Convective Mass Flux" uid="706324a93b4c3976da22db8a6e9d78b0" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17660 <item description="added for completeness with Ra_root" label="raOther" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn=" autotrophic_respiration" title="Total respiration from other pools (not leaves stem or roots)" uid="84f0b2cc-acb7-11e6-b5ee-ac72891c3257" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item>17672 <item description="added for completeness with Ra_root" label="raOther" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn="surface_upward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_plant_respiration_in_miscellaneous_living_matter" title="Total respiration from other pools (not leaves stem or roots)" uid="84f0b2cc-acb7-11e6-b5ee-ac72891c3257" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17661 17673 <item description="Total RA of trees in the gridcell" label="raTree" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn="plant_respiration_carbon_flux" title="autotrophic respiration on tree tiles" uid="84f0b5e2-acb7-11e6-b5ee-ac72891c3257" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17662 17674 <item description="Inorganic Carbon supply to ocean through runoff (separate from gas exchange)" label="icfriver" procComment="" procnote="" prov="OMIP_Omon" provmip="OMIP" sn="tendency_of_ocean_mole_content_of_inorganic_carbon_due_to_runoff_and_sediment_dissolution" title="Flux of Inorganic Carbon Into Ocean Surface by Runoff" uid="9c4f9fe04addd510e5fbedd35e01a5db" unid="fd72349a-3468-11e6-ba71-5404a60d96b5" units="mol m-2 s-1"></item> … … 17680 17692 <item description="Overturning mass streamfunction arising from all advective mass transport processes, resolved and parameterized." label="msftyrho" procComment="" procnote="" prov="OMIP_Omon" provmip="OMIP" sn="ocean_y_overturning_mass_streamfunction" title="Ocean Y Overturning Mass Streamfunction" uid="29a3aaf848070fb8ff4ecb7aa2dfa2eb" unid="fd716830-3468-11e6-ba71-5404a60d96b5" units="kg s-1"></item> 17681 17693 <item description="This is the net mass flux of carbon from atmosphere into land, calculated as photosynthesis MINUS the sum of plant and soil respiration, carbon fluxes from fire, harvest, grazing and land use change. Positive flux is into the land." label="nbp" procComment="" procnote="" prov="CMIP5_Lmon,PMIP3_Lclim,PMIP3_Lmon,SPECS_Lmon" provmip="CMIP5" sn="surface_net_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon_due_to_all_land_processes" title="Carbon Mass Flux out of Atmosphere due to Net Biospheric Production on Land" uid="337d362541c3e2a3f907abcaffa5c262" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17682 <item description="When land use change results in deforestation of natural vegetation (trees or grasslands) then natural biomass is removed. The treatment of deforested biomass differs significantly across models, but it should be straight-forward to compare deforested biomass across models." label="fDeforestToProduct" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn=" deforested_biomass_into_product_pool_due_to_anthorpogenic_land_use_change" title="Deforested biomass that goes into product pool as a result of anthropogenic land use change" uid="5913de9a-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item>17694 <item description="When land use change results in deforestation of natural vegetation (trees or grasslands) then natural biomass is removed. The treatment of deforested biomass differs significantly across models, but it should be straight-forward to compare deforested biomass across models." label="fDeforestToProduct" procComment="" procnote="" prov="CMIP6 endorsement [C4MIP]" provmip="C4MIP" sn="carbon_mass_flux_into_forestry_and_agricultural_products_due_to_anthropogenic_land_use_or_land_cover_change" title="Deforested biomass that goes into product pool as a result of anthropogenic land use change" uid="5913de9a-9e49-11e5-803c-0d0b866b59f3" unid="fd71526e-3468-11e6-ba71-5404a60d96b5" units="kg m-2 s-1"></item> 17683 17695 <item description="aerosol optical depth at 550 nm due to stratospheric volcanic aerosols" label="aod550volso4" procComment="" procnote="" prov="CMIP6 endorsement [VolMIP]" provmip="VolMIP" sn="stratosphere_optical_thickness_due_to_volcanic_aerosol_particles" title="Aerosol optical depth at 550 nm due to stratospheric volcanic aerosols" uid="5914c6e8-9e49-11e5-803c-0d0b866b59f3" unid="fd701138-3468-11e6-ba71-5404a60d96b5" units="1e-09"></item> 17684 <item description=" " label="sossq" procComment="" procnote="" prov="CMIP6 Endorsement [OMIP]" provmip="OMIP" sn="square_of_sea_surface_salinity" title="Square of Sea Surface Salinity" uid="d4eb6956-b00f-11e6-a1f0-ac72891c3257" unid="fd70094a-3468-11e6-ba71-5404a60d96b5" units="1e-06"></item>17696 <item description="The phrase "square_of_X" means X*X. Sea surface salinity is the salt concentration of sea water close to the sea surface, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. Sea surface salinity is often abbreviated as "SSS". For the salinity of sea water at a particular depth or layer, a data variable of "sea_water_salinity" or one of the more precisely defined salinities should be used with a vertical coordinate axis. There are standard names for the precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity." label="sossq" procComment="" procnote="" prov="CMIP6 Endorsement [OMIP]" provmip="OMIP" sn="square_of_sea_surface_salinity" title="Square of Sea Surface Salinity" uid="d4eb6956-b00f-11e6-a1f0-ac72891c3257" unid="fd70094a-3468-11e6-ba71-5404a60d96b5" units="1e-06"></item> 17685 17697 <item description="Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y." label="c3h6" procComment="" procnote="" prov="AerChemMIP endorsement (1)" provmip="AerChemMIP" sn="mole_fraction_of_propene_in_air" title="C3H6 volume mixing ratio" uid="fe6b44a6-a41f-11e5-9025-ac72891c3257" unid="fd724b4c-3468-11e6-ba71-5404a60d96b5" units="mol mol-1"></item> 17686 17698 <item description="This is the in-cloud optical depth obtained by considering only the cloudy portion of the grid cell." label="dtaus" procComment="" procnote="" prov="CMIP5_CF3hr" provmip="CMIP5" sn="atmosphere_optical_thickness_due_to_stratiform_cloud" title="Stratiform Cloud Optical Depth" uid="ffa75c4442ad340cb0cdeb11aa19f044" unid="fd6fef50-3468-11e6-ba71-5404a60d96b5" units="1"></item> … … 17698 17710 <item description="total primary (organic carbon) production by phytoplankton" label="pp" procComment="" procnote="" prov="OMIP_Omon" provmip="OMIP" sn="tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production" title="Primary Carbon Production by Phytoplankton" uid="41cef8aa37d1f0164ae061f293d4361c" unid="fd7243a4-3468-11e6-ba71-5404a60d96b5" units="mol m-3 s-1"></item> 17699 17711 <item description="alias::soil_moisture_content" label="mrsoLut" procComment="" procnote="" prov="CMIP6 endorsement [LUMIP]" provmip="LUMIP" sn="soil_moisture_content" title="Total soil moisture" uid="590d606a-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item> 17700 <item description=" " label="pathetao" procComment="" procnote="" prov="CMIP6 endorsement [FAFMIP]" provmip="FAFMIP" sn="sea_water_additional_potential_temperature" title="Sea Water Additional Potential Temperature" uid="590df00c-9e49-11e5-803c-0d0b866b59f3" unid="fd70db36-3468-11e6-ba71-5404a60d96b5" units="degC"></item>17712 <item description="The quantity with standard name sea_water_added_potential_temperature is a passive tracer in an ocean model whose surface flux does not come from the atmosphere but is imposed externally upon the simulated climate system. The surface flux is expressed as a heat flux and converted to a passive tracer increment as if it were a heat flux being added to potential temperature. The passive tracer is transported within the ocean as if it were potential temperature. The passive tracer is zero in the control climate of the model. The passive tracer records added heat, as described for the CMIP6 FAFMIP experiment (doi:10.5194/gmd-9-3993-2016), following earlier ideas. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure." label="pathetao" procComment="" procnote="" prov="CMIP6 endorsement [FAFMIP]" provmip="FAFMIP" sn="sea_water_added_potential_temperature" title="Sea Water Additional Potential Temperature" uid="590df00c-9e49-11e5-803c-0d0b866b59f3" unid="fd70db36-3468-11e6-ba71-5404a60d96b5" units="degC"></item> 17701 17713 <item description="Report surface temperature of snow where snow covers the sea ice." label="sitemptop" procComment="" procnote="si" prov="CMIP6 endorsement [SIMIP]" provmip="SIMIP" sn="sea_ice_surface_temperature" title="Surface temperature of sea ice" uid="5914a456-9e49-11e5-803c-0d0b866b59f3" unid="fd70554e-3468-11e6-ba71-5404a60d96b5" units="K"></item> 17702 17714 <item description="Northward component of the near surface wind" label="vas" procComment="" procnote="nsrf" prov="CMIP5_Amon,CMIP5_CF3hr,CMIP5_CFsubhr,CMIP5_day,PMIP3_Aclim,PMIP3_Amon,PMIP3_day,SPECS_6hr,SPECS_Amon" provmip="CMIP5" sn="northward_wind" title="Northward Near-Surface Wind" uid="86b1cd51f370e346ecb20f1e80cb6ea4" unid="fd71a7c8-3468-11e6-ba71-5404a60d96b5" units="m s-1"></item> … … 17749 17761 <item description="TOA Outgoing Shortwave Radiation calculated using carbon dioxide concentrations increased fourfold" label="rsut4co2" procComment="" procnote="4co2" prov="CMIP5_CFmon" provmip="CMIP5" sn="toa_outgoing_shortwave_flux" title="TOA Outgoing Shortwave Radiation in 4XCO2 Atmosphere" uid="58bbe37eb1035d22ab051fcfa10c67d9" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17750 17762 <item description="" label="drivw" procComment="" procnote="" prov="CMIP6 endorsement [LS3MIP]" provmip="LS3MIP" sn="change_over_time_in_river_water_amount" title="Change in River Storage" uid="591313de-9e49-11e5-803c-0d0b866b59f3" unid="fd711ac4-3468-11e6-ba71-5404a60d96b5" units="kg m-2"></item> 17751 <item description="Balkanski - LSCE" label="swsrfcsdust" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="tendency_of_clear_sky_surface_shortwave_flux_due_to_dust_ambient_aerosol_particles" title="Clear-sky Surface Shortwave radiative flux due to Dust" uid="5917cf46-9e49-11e5-803c-0d0b866b59f3" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17752 <item description="mass concentration of sulfate dry aerosol in air in model lowest layer." label="sconcso4" procComment="" procnote="nsrf" prov="CMIP5_aero" provmip="CMIP5" sn="mass_concentration_of_sulfate_dry_aerosol_in_air" title="Surface Concentration of SO4" uid="96435c8c0c0a8a7423d6abb6c027da69" unid="fd715930-3468-11e6-ba71-5404a60d96b5" units="kg m-3"></item> 17763 <item description="Tendency of heat content for a grid cell from parameterized dianeutral mixing. Reported only for models that use conservative temperature as prognostic field." label="ocontempdiff" procComment="" procnote="" prov="OMIP_Oyr" provmip="OMIP" sn="tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_eddy_dianeutral_mixing" title="Tendency of Sea Water Conservative Temperature Expressed as Heat Content due to parameterized dianeutral mixing" uid="c4b3f6005f73f2fc2d0e348fdff3c2bc" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17753 17764 <item description="near-surface (usually, 2 meter) air temperature" label="tasIs" procComment="" procnote="nsrf" prov="CMIP6 [ISMIP6]" provmip="ISMIP6" sn="air_temperature" title="Ice Sheet Near-Surface Air Temperature" uid="53823c4a-bf01-11e6-a554-ac72891c3257" unid="fd70554e-3468-11e6-ba71-5404a60d96b5" units="K"></item> 17754 17765 <item description="Actual thickness of snow in each category (NOT volume divided by grid area), (vector with one entry for each thickness category starting from the thinnest category, netcdf file should use thickness bounds of categories as third coordinate axis)" label="siitdsnthick" procComment="" procnote="si" prov="CMIP6 endorsement [SIMIP]" provmip="SIMIP" sn="snow_thickness_over_categories" title="Snow thickness in thickness categories" uid="590dfdc2-9e49-11e5-803c-0d0b866b59f3" unid="fd719698-3468-11e6-ba71-5404a60d96b5" units="m"></item> 17766 <item description="Balkanski - LSCE" label="swsrfcsdust" procComment="" procnote="" prov="CMIP6 endorsement [PMIP]" provmip="PMIP" sn="tendency_of_clear_sky_surface_shortwave_flux_due_to_dust_ambient_aerosol_particles" title="Clear-sky Surface Shortwave radiative flux due to Dust" uid="5917cf46-9e49-11e5-803c-0d0b866b59f3" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17755 17767 <item description="net (sum of transport in all directions) sea ice area transport through the following four passages, positive into the Arctic Ocean 1. Fram Strait = (11.5W,81.3N to (10.5E,79.6N) 2. Canadian Archipelago = (128.2W,70.6N) to (59.3W,82.1N) 3. Barents opening = (16.8E,76.5N) to (19.2E,70.2N) 4. Bering Strait = (171W,66.2N) to (166W,65N)" label="siareaacrossline" procComment="" procnote="" prov="CMIP6 endorsement [SIMIP]" provmip="SIMIP" sn="sea_ice_area_transport_across_line" title="Sea ice area flux through straits" uid="73097b4c-7a68-11e6-8db2-ac72891c3257" unid="fd71e6de-3468-11e6-ba71-5404a60d96b5" units="m2 s-1"></item> 17756 <item description=" Tendency of heat content for a grid cell from parameterized dianeutral mixing. Reported only for models that use conservative temperature as prognostic field." label="ocontempdiff" procComment="" procnote="" prov="OMIP_Oyr" provmip="OMIP" sn="tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_eddy_dianeutral_mixing" title="Tendency of Sea Water Conservative Temperature Expressed as Heat Content due to parameterized dianeutral mixing" uid="c4b3f6005f73f2fc2d0e348fdff3c2bc" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item>17768 <item description="mass concentration of sulfate dry aerosol in air in model lowest layer." label="sconcso4" procComment="" procnote="nsrf" prov="CMIP5_aero" provmip="CMIP5" sn="mass_concentration_of_sulfate_dry_aerosol_in_air" title="Surface Concentration of SO4" uid="96435c8c0c0a8a7423d6abb6c027da69" unid="fd715930-3468-11e6-ba71-5404a60d96b5" units="kg m-3"></item> 17757 17769 <item description=""X_area_fraction" means the fraction of horizontal area occupied by X. Cloud area fraction is also called "cloud amount" and "cloud cover". The cloud area fraction is for the whole atmosphere column, as seen from the surface or the top of the atmosphere. The cloud area fraction in a layer of the atmosphere has the standard name cloud_area_fraction_in_atmosphere_layer. The chemical formula for water is H2O." label="clwmodis" procComment="" procnote="" prov="CMIP6 endorsement [CFMIP]" provmip="CFMIP" sn="liquid_water_cloud_area_fraction" title="MODIS Liquid Cloud Fraction" uid="590e9c50-9e49-11e5-803c-0d0b866b59f3" unid="fd6ee984-3468-11e6-ba71-5404a60d96b5" units="%"></item> 17758 17770 <item description="downwelling shortwave flux due to volcanic aerosols at TOA under clear sky to be diagnosed through double radiation call" label="swtoafluxaerocs" procComment="" procnote="zm drad" prov="CMIP6 endorsement [VolMIP]" provmip="VolMIP" sn="shortwave_flux_due_to_volcanic_aerosols_at_TOA_under_clear_sky" title="Shortwave flux due to volcanic aerosols at TOA under clear sky" uid="5914e34e-9e49-11e5-803c-0d0b866b59f3" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> … … 17786 17798 <item description="Calculated in the absence of aerosols and clouds, following Ghan (ACP, 2013). This requires a double-call in the radiation code with precisely the same meteorology." label="rsuscsafbnd" procComment="" procnote="" prov="CMIP6 endorsement [RFMIP]" provmip="RFMIP" sn="surface_upwelling_shortwave_flux_in_air_assuming_clean_clear_sky" title="Surface Upwelling Clear-Sky, Aerosol-Free Shortwave Radiation in Bands" uid="38bd2912-a0dc-11e6-bc63-ac72891c3257" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17787 17799 <item description="total chemical loss rate for o+o1d+o3" label="oxloss" procComment="" procnote="" prov="CMIP6 endorsement [DAMIP]" provmip="DAMIP" sn="tendency_of_atmosphere_mole_concentration_of_ox_due_to_chemical_destruction" title="Total Odd Oxygen (Ox) Loss Rate" uid="590db8c6-9e49-11e5-803c-0d0b866b59f3" unid="fd7243a4-3468-11e6-ba71-5404a60d96b5" units="mol m-3 s-1"></item> 17788 <item description="Temperature tendency due to dissipation of parameterized nonorographic gravity waves." label="tntnogw" procComment="" procnote="gw" prov="CMIP6 endorsement [DynVar]" provmip="DynVar" sn="te mperature_tendency_due_to_dissipation_nonorographic_gravity_wave_drag" title="Temperature Tendency Non-orographic Gravity Wave Dissipation" uid="5913e8ea-9e49-11e5-803c-0d0b866b59f3" unid="fd707420-3468-11e6-ba71-5404a60d96b5" units="K s-1"></item>17800 <item description="Temperature tendency due to dissipation of parameterized nonorographic gravity waves." label="tntnogw" procComment="" procnote="gw" prov="CMIP6 endorsement [DynVar]" provmip="DynVar" sn="tendency_of_air_temperature_due_to_dissipation_of_nonorographic_gravity_waves" title="Temperature Tendency Non-orographic Gravity Wave Dissipation" uid="5913e8ea-9e49-11e5-803c-0d0b866b59f3" unid="fd707420-3468-11e6-ba71-5404a60d96b5" units="K s-1"></item> 17789 17801 <item description="total production rate of o+o1d+o3 including o2 photolysis and all o3 producing reactions" label="oxprod" procComment="" procnote="" prov="CMIP6 endorsement [DAMIP]" provmip="DAMIP" sn="tendency_of_atmosphere_mole_concentration_of_ox_due_to_chemical_and_photolytic_production" title="Total Odd Oxgen (Ox) Production Rate" uid="5917ff52-9e49-11e5-803c-0d0b866b59f3" unid="fd7243a4-3468-11e6-ba71-5404a60d96b5" units="mol m-3 s-1"></item> 17790 17802 <item description="Primary (organic carbon) production by the picophytoplankton (<2 um) component alone" label="pppico" procComment="" procnote="" prov="OMIP.Oyr.bgc.85" provmip="OMIP" sn="tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production_by_picophytoplankton" title="Tendency of Mole Concentration of Organic Carbon in Sea Water due to Net Primary Production by Picophytoplankton" uid="e527532a-dd83-11e5-9194-ac72891c3257" unid="fd7243a4-3468-11e6-ba71-5404a60d96b5" units="mol m-3 s-1"></item> … … 17795 17807 <item description="In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Snow thermodynamics" refers to the addition or subtraction of mass due to surface and basal fluxes, i.e., due to melting, sublimation and fusion." label="hfsnthermds" procComment="" procnote="" prov="OMIP.Omon" provmip="OMIP" sn="heat_flux_into_sea_water_due_to_snow_thermodynamics" title="Heat Flux into Sea Water due to Snow Thermodynamics" uid="22fae57fa6f2e7e2744a3a9fe3c0dbca" unid="fd70b822-3468-11e6-ba71-5404a60d96b5" units="W m-2"></item> 17796 17808 <item description="Percentage of each grid cell that is occupied by snow that rests on land portion of cell." label="sncIs" procComment="" procnote="" prov="CMIP6 [ISMIP6]" provmip="ISMIP6" sn="surface_snow_area_fraction" title="I