source: TI07-MOLES/trunk/PythonCode/wsgi/examples/badc.nerc.ac.uk__NDG-B1__dataent_chablis.xml @ 2433

Subversion URL: http://proj.badc.rl.ac.uk/svn/ndg/TI07-MOLES/trunk/PythonCode/wsgi/examples/badc.nerc.ac.uk__NDG-B1__dataent_chablis.xml@2433
Revision 2433, 216.5 KB checked in by lawrence, 12 years ago (diff)

Fixes for ticket:722, changing to internal unicode (probably not complete),
with decode on the edge coming out ... fixes 722 but may have some
other problems now ...

Line 
1<?xml version="1.0" encoding="utf-8"?><dgMetadataRecord>
2    <dgMetadataID>
3        <schemeIdentifier>NDG-B1</schemeIdentifier>
4        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
5        <localIdentifier>dataent_chablis</localIdentifier>
6    </dgMetadataID>
7    <dgMetadataDescription>
8        <metadataDescriptionID>
9            <schemeIdentifier>NDG-B0</schemeIdentifier>
10            <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
11            <localIdentifier>metdesc_1162546244598573</localIdentifier>
12        </metadataDescriptionID>
13        <metadataDescriptionLastUpdated>2006-11-03</metadataDescriptionLastUpdated>
14        <abstract>
15            <abstractText>CHABLIS is a NERC-AFI funded project, aimed at studying the chemistry of the Antarctic Boundary Layer in greater detail, and for a longer duration, than has previously been attempted. Field measurements are carried out at the British Antarctic Survey station, Halley, at the Clean Air Sector Laboratory (CASLab). Year-round measurements began in February 2004, with a focus on NOy partitioning, air-snow exchange, and a spring-time halogen/ozone depletion intensive. A summer campaign focussing on oxidants ran during January/February 2005, after which CHABLIS fieldwork ended. Access to this dataset is restricted to campaign participants only.</abstractText>
16        </abstract>
17        <descriptionSection>
18            <dgDescriptionText>CHABLIS is a major initiative to explore the atmospheric chemistry of the Antarctic boundary layer (ABL) in greater detail and for a longer period of time than has been achieved before. &lt;P&gt; Key Goals are: &lt;ul&gt; &lt;li&gt;to explore the chemistry of the ABL through a year-round study of chemical climatology culminating in an intensive summer campaign to measure a comprehensive suite of radicals and other trace species; &lt;li&gt;to test numerical models of the pristine atmosphere under extreme conditions; &lt;li&gt;to extend significantly our ability to interpret ice core data by improving understanding of both the present-day atmosphere and transfer functions. Fieldwork will be carried out at the new Clean Air Sector Laboratory at Halley station . The team from UK universities and the British Antarctic Survey will bring to the project a suite of state-of-the-art instruments and models and a track record of successfully running major campaigns together in remote locations. The field campaign will start during the austral summer 03/04 and continue throughout the winter culminating with an intensive study during the summer of 04/05. &lt;/ul&gt;</dgDescriptionText>
19            <contentType>text/plain</contentType>
20        </descriptionSection>
21        <descriptionSection>
22            <descriptionOnlineReference>
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24                    <name>URI</name>
25                    <URI>http://badc.nerc.ac.uk/data/chablis</URI>
26                </dgSimpleLink>
27            </descriptionOnlineReference>
28        </descriptionSection>
29        <descriptionSection>
30            <descriptionOnlineReference>
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32                    <name>Logo</name>
33                    <URI>http://badc.nerc.ac.uk/graphics/logos/nerc-2.gif</URI>
34                </dgSimpleLink>
35            </descriptionOnlineReference>
36        </descriptionSection>
37    </dgMetadataDescription>
38    <name>Chemistry of the Antarctic Boundary Layer and the Interface with Snow (CHABLIS)</name>
39    <abbreviation>chablis</abbreviation>
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312                                    <dgValidTerm>CloudAmount</dgValidTerm>
313                                    <dgValidTermID>
314                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
315                                        <TermID>unknown</TermID>
316                                    </dgValidTermID>
317                                </dgValidSubterm>
318                            </dgValidSubterm>
319                        </dgValidSubterm>
320                    </dgValidSubterm>
321                </dgStdParameterMeasured>
322                <ParameterName>EARTHSCIENCE/Atmosphere/Clouds/CloudAmount/Frequency</ParameterName>
323                <ParameterAbbreviation/>
324            </dgParameterSummary>
325            <dgParameterSummary>
326                <IsOutput>true</IsOutput>
327                <dgParameterValue>
328                    <dgRangeDataParameter>
329                        <HighValue/>
330                        <LowValue/>
331                        <dgStandardUnit>
332                            <dgValidTerm>unknown</dgValidTerm>
333                            <dgValidTermID>
334                                <ParentListID>general_units</ParentListID>
335                                <TermID>0</TermID>
336                            </dgValidTermID>
337                        </dgStandardUnit>
338                    </dgRangeDataParameter>
339                </dgParameterValue>
340                <dgStdParameterMeasured>
341                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
342                    <dgValidTermID>
343                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
344                        <TermID>GCAT0001</TermID>
345                    </dgValidTermID>
346                    <dgValidSubterm>
347                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
348                        <dgValidTermID>
349                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
350                            <TermID>unknown</TermID>
351                        </dgValidTermID>
352                        <dgValidSubterm>
353                            <dgValidTerm>Atmosphere</dgValidTerm>
354                            <dgValidTermID>
355                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
356                                <TermID>unknown</TermID>
357                            </dgValidTermID>
358                            <dgValidSubterm>
359                                <dgValidTerm>AtmosphericWaterVapor</dgValidTerm>
360                                <dgValidTermID>
361                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
362                                    <TermID>unknown</TermID>
363                                </dgValidTermID>
364                                <dgValidSubterm>
365                                    <dgValidTerm>Humidity</dgValidTerm>
366                                    <dgValidTermID>
367                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
368                                        <TermID>unknown</TermID>
369                                    </dgValidTermID>
370                                </dgValidSubterm>
371                            </dgValidSubterm>
372                        </dgValidSubterm>
373                    </dgValidSubterm>
374                </dgStdParameterMeasured>
375                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericWaterVapor/Humidity/relativehumidity</ParameterName>
376                <ParameterAbbreviation/>
377            </dgParameterSummary>
378            <dgParameterSummary>
379                <IsOutput>true</IsOutput>
380                <dgParameterValue>
381                    <dgRangeDataParameter>
382                        <HighValue/>
383                        <LowValue/>
384                        <dgStandardUnit>
385                            <dgValidTerm>unknown</dgValidTerm>
386                            <dgValidTermID>
387                                <ParentListID>general_units</ParentListID>
388                                <TermID>0</TermID>
389                            </dgValidTermID>
390                        </dgStandardUnit>
391                    </dgRangeDataParameter>
392                </dgParameterValue>
393                <dgStdParameterMeasured>
394                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
395                    <dgValidTermID>
396                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
397                        <TermID>GCAT0001</TermID>
398                    </dgValidTermID>
399                    <dgValidSubterm>
400                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
401                        <dgValidTermID>
402                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
403                            <TermID>unknown</TermID>
404                        </dgValidTermID>
405                        <dgValidSubterm>
406                            <dgValidTerm>Atmosphere</dgValidTerm>
407                            <dgValidTermID>
408                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
409                                <TermID>unknown</TermID>
410                            </dgValidTermID>
411                            <dgValidSubterm>
412                                <dgValidTerm>AtmosphericWinds</dgValidTerm>
413                                <dgValidTermID>
414                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
415                                    <TermID>unknown</TermID>
416                                </dgValidTermID>
417                                <dgValidSubterm>
418                                    <dgValidTerm>SurfaceWinds</dgValidTerm>
419                                    <dgValidTermID>
420                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
421                                        <TermID>unknown</TermID>
422                                    </dgValidTermID>
423                                </dgValidSubterm>
424                            </dgValidSubterm>
425                        </dgValidSubterm>
426                    </dgValidSubterm>
427                </dgStdParameterMeasured>
428                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericWinds/SurfaceWinds/winddirection</ParameterName>
429                <ParameterAbbreviation/>
430            </dgParameterSummary>
431            <dgParameterSummary>
432                <IsOutput>true</IsOutput>
433                <dgParameterValue>
434                    <dgRangeDataParameter>
435                        <HighValue/>
436                        <LowValue/>
437                        <dgStandardUnit>
438                            <dgValidTerm>unknown</dgValidTerm>
439                            <dgValidTermID>
440                                <ParentListID>general_units</ParentListID>
441                                <TermID>0</TermID>
442                            </dgValidTermID>
443                        </dgStandardUnit>
444                    </dgRangeDataParameter>
445                </dgParameterValue>
446                <dgStdParameterMeasured>
447                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
448                    <dgValidTermID>
449                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
450                        <TermID>GCAT0001</TermID>
451                    </dgValidTermID>
452                    <dgValidSubterm>
453                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
454                        <dgValidTermID>
455                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
456                            <TermID>unknown</TermID>
457                        </dgValidTermID>
458                        <dgValidSubterm>
459                            <dgValidTerm>Atmosphere</dgValidTerm>
460                            <dgValidTermID>
461                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
462                                <TermID>unknown</TermID>
463                            </dgValidTermID>
464                            <dgValidSubterm>
465                                <dgValidTerm>AtmosphericWinds</dgValidTerm>
466                                <dgValidTermID>
467                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
468                                    <TermID>unknown</TermID>
469                                </dgValidTermID>
470                                <dgValidSubterm>
471                                    <dgValidTerm>SurfaceWinds</dgValidTerm>
472                                    <dgValidTermID>
473                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
474                                        <TermID>unknown</TermID>
475                                    </dgValidTermID>
476                                </dgValidSubterm>
477                            </dgValidSubterm>
478                        </dgValidSubterm>
479                    </dgValidSubterm>
480                </dgStdParameterMeasured>
481                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericWinds/SurfaceWinds/windspeed</ParameterName>
482                <ParameterAbbreviation/>
483            </dgParameterSummary>
484            <dgParameterSummary>
485                <IsOutput>true</IsOutput>
486                <dgParameterValue>
487                    <dgRangeDataParameter>
488                        <HighValue/>
489                        <LowValue/>
490                        <dgStandardUnit>
491                            <dgValidTerm>unknown</dgValidTerm>
492                            <dgValidTermID>
493                                <ParentListID>general_units</ParentListID>
494                                <TermID>0</TermID>
495                            </dgValidTermID>
496                        </dgStandardUnit>
497                    </dgRangeDataParameter>
498                </dgParameterValue>
499                <dgStdParameterMeasured>
500                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
501                    <dgValidTermID>
502                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
503                        <TermID>GCAT0001</TermID>
504                    </dgValidTermID>
505                    <dgValidSubterm>
506                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
507                        <dgValidTermID>
508                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
509                            <TermID>unknown</TermID>
510                        </dgValidTermID>
511                        <dgValidSubterm>
512                            <dgValidTerm>Atmosphere</dgValidTerm>
513                            <dgValidTermID>
514                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
515                                <TermID>unknown</TermID>
516                            </dgValidTermID>
517                            <dgValidSubterm>
518                                <dgValidTerm>AtmosphericTemperature</dgValidTerm>
519                                <dgValidTermID>
520                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
521                                    <TermID>unknown</TermID>
522                                </dgValidTermID>
523                                <dgValidSubterm>
524                                    <dgValidTerm>AirTemperature</dgValidTerm>
525                                    <dgValidTermID>
526                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
527                                        <TermID>unknown</TermID>
528                                    </dgValidTermID>
529                                </dgValidSubterm>
530                            </dgValidSubterm>
531                        </dgValidSubterm>
532                    </dgValidSubterm>
533                </dgStdParameterMeasured>
534                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericTemperature/AirTemperature/temperature</ParameterName>
535                <ParameterAbbreviation/>
536            </dgParameterSummary>
537            <dgParameterSummary>
538                <IsOutput>true</IsOutput>
539                <dgParameterValue>
540                    <dgRangeDataParameter>
541                        <HighValue/>
542                        <LowValue/>
543                        <dgStandardUnit>
544                            <dgValidTerm>unknown</dgValidTerm>
545                            <dgValidTermID>
546                                <ParentListID>general_units</ParentListID>
547                                <TermID>0</TermID>
548                            </dgValidTermID>
549                        </dgStandardUnit>
550                    </dgRangeDataParameter>
551                </dgParameterValue>
552                <dgStdParameterMeasured>
553                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
554                    <dgValidTermID>
555                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
556                        <TermID>GCAT0001</TermID>
557                    </dgValidTermID>
558                    <dgValidSubterm>
559                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
560                        <dgValidTermID>
561                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
562                            <TermID>unknown</TermID>
563                        </dgValidTermID>
564                        <dgValidSubterm>
565                            <dgValidTerm>Atmosphere</dgValidTerm>
566                            <dgValidTermID>
567                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
568                                <TermID>unknown</TermID>
569                            </dgValidTermID>
570                            <dgValidSubterm>
571                                <dgValidTerm>AtmosphericPressure</dgValidTerm>
572                                <dgValidTermID>
573                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
574                                    <TermID>unknown</TermID>
575                                </dgValidTermID>
576                                <dgValidSubterm>
577                                    <dgValidTerm>SeaLevelPressure</dgValidTerm>
578                                    <dgValidTermID>
579                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
580                                        <TermID>unknown</TermID>
581                                    </dgValidTermID>
582                                </dgValidSubterm>
583                            </dgValidSubterm>
584                        </dgValidSubterm>
585                    </dgValidSubterm>
586                </dgStdParameterMeasured>
587                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericPressure/SeaLevelPressure/meansealevelpressure</ParameterName>
588                <ParameterAbbreviation/>
589            </dgParameterSummary>
590            <dgParameterSummary>
591                <IsOutput>true</IsOutput>
592                <dgParameterValue>
593                    <dgRangeDataParameter>
594                        <HighValue/>
595                        <LowValue/>
596                        <dgStandardUnit>
597                            <dgValidTerm>unknown</dgValidTerm>
598                            <dgValidTermID>
599                                <ParentListID>general_units</ParentListID>
600                                <TermID>0</TermID>
601                            </dgValidTermID>
602                        </dgStandardUnit>
603                    </dgRangeDataParameter>
604                </dgParameterValue>
605                <dgStdParameterMeasured>
606                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
607                    <dgValidTermID>
608                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
609                        <TermID>GCAT0001</TermID>
610                    </dgValidTermID>
611                    <dgValidSubterm>
612                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
613                        <dgValidTermID>
614                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
615                            <TermID>unknown</TermID>
616                        </dgValidTermID>
617                        <dgValidSubterm>
618                            <dgValidTerm>Atmosphere</dgValidTerm>
619                            <dgValidTermID>
620                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
621                                <TermID>unknown</TermID>
622                            </dgValidTermID>
623                            <dgValidSubterm>
624                                <dgValidTerm>AtmosphericChemistry</dgValidTerm>
625                                <dgValidTermID>
626                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
627                                    <TermID>unknown</TermID>
628                                </dgValidTermID>
629                                <dgValidSubterm>
630                                    <dgValidTerm>TraceGases</dgValidTerm>
631                                    <dgValidTermID>
632                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
633                                        <TermID>unknown</TermID>
634                                    </dgValidTermID>
635                                </dgValidSubterm>
636                            </dgValidSubterm>
637                        </dgValidSubterm>
638                    </dgValidSubterm>
639                </dgStdParameterMeasured>
640                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericChemistry/TraceGases/TraceSpecies/peroxyacetylnitrate(PAN)</ParameterName>
641                <ParameterAbbreviation/>
642            </dgParameterSummary>
643            <dgParameterSummary>
644                <IsOutput>true</IsOutput>
645                <dgParameterValue>
646                    <dgRangeDataParameter>
647                        <HighValue/>
648                        <LowValue/>
649                        <dgStandardUnit>
650                            <dgValidTerm>unknown</dgValidTerm>
651                            <dgValidTermID>
652                                <ParentListID>general_units</ParentListID>
653                                <TermID>0</TermID>
654                            </dgValidTermID>
655                        </dgStandardUnit>
656                    </dgRangeDataParameter>
657                </dgParameterValue>
658                <dgStdParameterMeasured>
659                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
660                    <dgValidTermID>
661                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
662                        <TermID>GCAT0001</TermID>
663                    </dgValidTermID>
664                    <dgValidSubterm>
665                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
666                        <dgValidTermID>
667                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
668                            <TermID>unknown</TermID>
669                        </dgValidTermID>
670                        <dgValidSubterm>
671                            <dgValidTerm>Atmosphere</dgValidTerm>
672                            <dgValidTermID>
673                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
674                                <TermID>unknown</TermID>
675                            </dgValidTermID>
676                            <dgValidSubterm>
677                                <dgValidTerm>AtmosphericChemistry</dgValidTerm>
678                                <dgValidTermID>
679                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
680                                    <TermID>unknown</TermID>
681                                </dgValidTermID>
682                                <dgValidSubterm>
683                                    <dgValidTerm>NitrogenCompounds</dgValidTerm>
684                                    <dgValidTermID>
685                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
686                                        <TermID>unknown</TermID>
687                                    </dgValidTermID>
688                                </dgValidSubterm>
689                            </dgValidSubterm>
690                        </dgValidSubterm>
691                    </dgValidSubterm>
692                </dgStdParameterMeasured>
693                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericChemistry/NitrogenCompounds/NitrogenOxides/NOx</ParameterName>
694                <ParameterAbbreviation/>
695            </dgParameterSummary>
696            <dgParameterSummary>
697                <IsOutput>true</IsOutput>
698                <dgParameterValue>
699                    <dgRangeDataParameter>
700                        <HighValue/>
701                        <LowValue/>
702                        <dgStandardUnit>
703                            <dgValidTerm>unknown</dgValidTerm>
704                            <dgValidTermID>
705                                <ParentListID>general_units</ParentListID>
706                                <TermID>0</TermID>
707                            </dgValidTermID>
708                        </dgStandardUnit>
709                    </dgRangeDataParameter>
710                </dgParameterValue>
711                <dgStdParameterMeasured>
712                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
713                    <dgValidTermID>
714                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
715                        <TermID>GCAT0001</TermID>
716                    </dgValidTermID>
717                    <dgValidSubterm>
718                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
719                        <dgValidTermID>
720                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
721                            <TermID>unknown</TermID>
722                        </dgValidTermID>
723                        <dgValidSubterm>
724                            <dgValidTerm>Atmosphere</dgValidTerm>
725                            <dgValidTermID>
726                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
727                                <TermID>unknown</TermID>
728                            </dgValidTermID>
729                            <dgValidSubterm>
730                                <dgValidTerm>AtmosphericChemistry</dgValidTerm>
731                                <dgValidTermID>
732                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
733                                    <TermID>unknown</TermID>
734                                </dgValidTermID>
735                                <dgValidSubterm>
736                                    <dgValidTerm>NitrogenCompounds</dgValidTerm>
737                                    <dgValidTermID>
738                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
739                                        <TermID>unknown</TermID>
740                                    </dgValidTermID>
741                                </dgValidSubterm>
742                            </dgValidSubterm>
743                        </dgValidSubterm>
744                    </dgValidSubterm>
745                </dgStdParameterMeasured>
746                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericChemistry/NitrogenCompounds/NitricAcid/HNO3</ParameterName>
747                <ParameterAbbreviation/>
748            </dgParameterSummary>
749            <dgParameterSummary>
750                <IsOutput>true</IsOutput>
751                <dgParameterValue>
752                    <dgRangeDataParameter>
753                        <HighValue/>
754                        <LowValue/>
755                        <dgStandardUnit>
756                            <dgValidTerm>unknown</dgValidTerm>
757                            <dgValidTermID>
758                                <ParentListID>general_units</ParentListID>
759                                <TermID>0</TermID>
760                            </dgValidTermID>
761                        </dgStandardUnit>
762                    </dgRangeDataParameter>
763                </dgParameterValue>
764                <dgStdParameterMeasured>
765                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
766                    <dgValidTermID>
767                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
768                        <TermID>GCAT0001</TermID>
769                    </dgValidTermID>
770                    <dgValidSubterm>
771                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
772                        <dgValidTermID>
773                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
774                            <TermID>unknown</TermID>
775                        </dgValidTermID>
776                        <dgValidSubterm>
777                            <dgValidTerm>Atmosphere</dgValidTerm>
778                            <dgValidTermID>
779                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
780                                <TermID>unknown</TermID>
781                            </dgValidTermID>
782                            <dgValidSubterm>
783                                <dgValidTerm>AtmosphericChemistry</dgValidTerm>
784                                <dgValidTermID>
785                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
786                                    <TermID>unknown</TermID>
787                                </dgValidTermID>
788                                <dgValidSubterm>
789                                    <dgValidTerm>CarbonandHydrocarbonCompounds</dgValidTerm>
790                                    <dgValidTermID>
791                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
792                                        <TermID>unknown</TermID>
793                                    </dgValidTermID>
794                                </dgValidSubterm>
795                            </dgValidSubterm>
796                        </dgValidSubterm>
797                    </dgValidSubterm>
798                </dgStdParameterMeasured>
799                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericChemistry/CarbonandHydrocarbonCompounds</ParameterName>
800                <ParameterAbbreviation/>
801            </dgParameterSummary>
802            <dgParameterSummary>
803                <IsOutput>true</IsOutput>
804                <dgParameterValue>
805                    <dgRangeDataParameter>
806                        <HighValue/>
807                        <LowValue/>
808                        <dgStandardUnit>
809                            <dgValidTerm>unknown</dgValidTerm>
810                            <dgValidTermID>
811                                <ParentListID>general_units</ParentListID>
812                                <TermID>0</TermID>
813                            </dgValidTermID>
814                        </dgStandardUnit>
815                    </dgRangeDataParameter>
816                </dgParameterValue>
817                <dgStdParameterMeasured>
818                    <dgValidTerm>EARTH SCIENCE</dgValidTerm>
819                    <dgValidTermID>
820                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P111</ParentListID>
821                        <TermID>GCAT0001</TermID>
822                    </dgValidTermID>
823                    <dgValidSubterm>
824                        <dgValidTerm>EARTHSCIENCE</dgValidTerm>
825                        <dgValidTermID>
826                            <ParentListID>http://vocab.ndg.nerc.ac.uk/term/</ParentListID>
827                            <TermID>unknown</TermID>
828                        </dgValidTermID>
829                        <dgValidSubterm>
830                            <dgValidTerm>Atmosphere</dgValidTerm>
831                            <dgValidTermID>
832                                <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P131</ParentListID>
833                                <TermID>unknown</TermID>
834                            </dgValidTermID>
835                            <dgValidSubterm>
836                                <dgValidTerm>AtmosphericChemistry</dgValidTerm>
837                                <dgValidTermID>
838                                    <ParentListID>http://vocab.ndg.nerc.ac.uk/term/P141</ParentListID>
839                                    <TermID>unknown</TermID>
840                                </dgValidTermID>
841                                <dgValidSubterm>
842                                    <dgValidTerm>HydrogenCompounds</dgValidTerm>
843                                    <dgValidTermID>
844                                        <ParentListID>http://vocab.ndg.nerc.ac.uk/term/Pxxx</ParentListID>
845                                        <TermID>unknown</TermID>
846                                    </dgValidTermID>
847                                </dgValidSubterm>
848                            </dgValidSubterm>
849                        </dgValidSubterm>
850                    </dgValidSubterm>
851                </dgStdParameterMeasured>
852                <ParameterName>EARTHSCIENCE/Atmosphere/AtmosphericChemistry/HydrogenCompounds/Hydroperoxy</ParameterName>
853                <ParameterAbbreviation/>
854            </dgParameterSummary>
855        </dgDataSummary>
856        <dgDataRoles>
857            <dgDataCurator>
858                <dgMetadataID>
859                    <schemeIdentifier>NDG-B0</schemeIdentifier>
860                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
861                    <localIdentifier>curator_chablis</localIdentifier>
862                </dgMetadataID>
863                <roleName>DataCurator</roleName>
864                <abbreviation>DCur</abbreviation>
865                <contactDetails>
866                    <fax>+44 (0) 1235 44 63 14</fax>
867                    <telephone>+44 (0) 1235 44 64 32</telephone>
868                    <address>
869                        <addressline>The British Atmospheric Data Centre</addressline>
870                        <addressline>Space Science and Technology Department</addressline>
871                        <addressline>R25 - Room 2.122</addressline>
872                        <addressline>CCLRC Rutherford Appleton Laboratory</addressline>
873                        <addressline>Chilton, nr Didcot</addressline>
874                        <city>Oxfordshire</city>
875                        <postcode>OX11 0QX</postcode>
876                        <country>UK</country>
877                    </address>
878                    <URI>http://badc.nerc.ac.uk/</URI>
879                </contactDetails>
880                <dgRoleHolder>
881                    <organisation>
882                        <error>not found</error>
883                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
884                        <localIdentifier>badc</localIdentifier>
885                    </organisation>
886                    <startDate>1970-01-01</startDate>
887                </dgRoleHolder>
888            </dgDataCurator>
889        </dgDataRoles>
890        <RelatedDeployment>
891            <DateStart>2004-03-22</DateStart>
892            <DateEnd>2005-02-02</DateEnd>
893            <dgMetadataID>
894                <schemeIdentifier>NDG-B0</schemeIdentifier>
895                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
896                <localIdentifier>dep_11721945576615534</localIdentifier>
897            </dgMetadataID>
898            <activity>
899                <error>not found</error>
900                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
901                <localIdentifier>dataent_activity_chablis</localIdentifier>
902            </activity>
903            <dataproductiontool>
904                <dgMetadataID>
905                    <schemeIdentifier>NDG-B0</schemeIdentifier>
906                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
907                    <localIdentifier>dpt_11721941947115524</localIdentifier>
908                </dgMetadataID>
909                <dgMetadataDescription>
910                    <metadataDescriptionID>
911                        <schemeIdentifier>NDG-B0</schemeIdentifier>
912                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
913                        <localIdentifier>metdesc_11721941947115525</localIdentifier>
914                    </metadataDescriptionID>
915                    <metadataDescriptionLastUpdated>2007-02-23</metadataDescriptionLastUpdated>
916                    <abstract>
917                        <abstractText/>
918                    </abstract>
919                    <descriptionSection>
920                        <dgDescriptionText/>
921                        <contentType>text/plain</contentType>
922                    </descriptionSection>
923                    <descriptionSection>
924                        <descriptionOnlineReference>
925                            <dgSimpleLink>
926                                <name>URI</name>
927                                <URI/>
928                            </dgSimpleLink>
929                        </descriptionOnlineReference>
930                    </descriptionSection>
931                </dgMetadataDescription>
932                <name>UEA: NI - GCMS</name>
933                <abbreviation>uea-nigcms</abbreviation>
934                <dgDataProductionTool>
935                    <dgInstrument/>
936                </dgDataProductionTool>
937            </dataproductiontool>
938            <observationstation>
939                <dgMetadataID>
940                    <schemeIdentifier>NDG-B0</schemeIdentifier>
941                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
942                    <localIdentifier>obs_1162914786499342</localIdentifier>
943                </dgMetadataID>
944                <dgMetadataDescription>
945                    <metadataDescriptionID>
946                        <schemeIdentifier>NDG-B0</schemeIdentifier>
947                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
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951                    <abstract>
952                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
953                    </abstract>
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955                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
956&lt;P&gt;
957Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
958&lt;P&gt;
959Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
960&lt;P&gt;
961Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
962&lt;P&gt;
963The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
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999            <DateStart>2004-07-06</DateStart>
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1059                    <abstract>
1060                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1061                    </abstract>
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1063                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1064&lt;P&gt;
1065Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1066&lt;P&gt;
1067Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1068&lt;P&gt;
1069Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1070&lt;P&gt;
1071The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
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1083                <name>Halley Bay, Antarctica</name>
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1168                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1169                    </abstract>
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1171                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1172&lt;P&gt;
1173Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1174&lt;P&gt;
1175Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1176&lt;P&gt;
1177Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1178&lt;P&gt;
1179The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
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1275                    <abstract>
1276                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1277                    </abstract>
1278                    <descriptionSection>
1279                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1280&lt;P&gt;
1281Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1282&lt;P&gt;
1283Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1284&lt;P&gt;
1285Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1286&lt;P&gt;
1287The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
1288                        <contentType>text/plain</contentType>
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1299                <name>Halley Bay, Antarctica</name>
1300                <abbreviation/>
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1321        </RelatedDeployment>
1322        <RelatedDeployment>
1323            <DateStart>2005-01-10</DateStart>
1324            <DateEnd>2005-02-10</DateEnd>
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1347                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
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1364                <name>Leeds: TEI NOx analyser</name>
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1382                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
1383                    <abstract>
1384                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1385                    </abstract>
1386                    <descriptionSection>
1387                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1388&lt;P&gt;
1389Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1390&lt;P&gt;
1391Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1392&lt;P&gt;
1393Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1394&lt;P&gt;
1395The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
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1407                <name>Halley Bay, Antarctica</name>
1408                <abbreviation/>
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1431            <DateStart>2004-06-18</DateStart>
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1472                <name>Leeds: HPLC with post column derivatisation</name>
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1491                    <abstract>
1492                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1493                    </abstract>
1494                    <descriptionSection>
1495                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1496&lt;P&gt;
1497Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1498&lt;P&gt;
1499Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1500&lt;P&gt;
1501Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1502&lt;P&gt;
1503The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
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1515                <name>Halley Bay, Antarctica</name>
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1579                </dgMetadataDescription>
1580                <name>Leeds: GC-FID</name>
1581                <abbreviation>leeds-gc-fid</abbreviation>
1582                <dgDataProductionTool>
1583                    <dgInstrument/>
1584                </dgDataProductionTool>
1585            </dataproductiontool>
1586            <observationstation>
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1589                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1590                    <localIdentifier>obs_1162914786499342</localIdentifier>
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1593                    <metadataDescriptionID>
1594                        <schemeIdentifier>NDG-B0</schemeIdentifier>
1595                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1596                        <localIdentifier>metdesc_116291478659343</localIdentifier>
1597                    </metadataDescriptionID>
1598                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
1599                    <abstract>
1600                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1601                    </abstract>
1602                    <descriptionSection>
1603                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1604&lt;P&gt;
1605Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1606&lt;P&gt;
1607Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1608&lt;P&gt;
1609Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1610&lt;P&gt;
1611The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
1612                        <contentType>text/plain</contentType>
1613                    </descriptionSection>
1614                    <descriptionSection>
1615                        <descriptionOnlineReference>
1616                            <dgSimpleLink>
1617                                <name>URI</name>
1618                                <URI>www.antarctica.ac.uk/Living_and_Working/Stations/Halley/index.php</URI>
1619                            </dgSimpleLink>
1620                        </descriptionOnlineReference>
1621                    </descriptionSection>
1622                </dgMetadataDescription>
1623                <name>Halley Bay, Antarctica</name>
1624                <abbreviation/>
1625                <dgObservationStation>
1626                    <contactDetails>
1627                        <fax>unknown</fax>
1628                        <telephone>unknown</telephone>
1629                        <address>
1630                            <addressline>unknown</addressline>
1631                            <city>unknown</city>
1632                            <postcode>unknown</postcode>
1633                            <country>unknown</country>
1634                        </address>
1635                        <URI>unknown</URI>
1636                    </contactDetails>
1637                    <dgStationaryPlatform>
1638                        <position>
1639                            <positionLatitude>0</positionLatitude>
1640                            <positionLongitude>0</positionLongitude>
1641                        </position>
1642                    </dgStationaryPlatform>
1643                </dgObservationStation>
1644            </observationstation>
1645        </RelatedDeployment>
1646        <RelatedDeployment>
1647            <DateStart>2005-01-10</DateStart>
1648            <DateEnd>2005-02-10</DateEnd>
1649            <dgMetadataID>
1650                <schemeIdentifier>NDG-B0</schemeIdentifier>
1651                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1652                <localIdentifier>dep_11721933444715512</localIdentifier>
1653            </dgMetadataID>
1654            <activity>
1655                <error>not found</error>
1656                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1657                <localIdentifier>dataent_activity_chablis</localIdentifier>
1658            </activity>
1659            <dataproductiontool>
1660                <dgMetadataID>
1661                    <schemeIdentifier>NDG-B0</schemeIdentifier>
1662                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1663                    <localIdentifier>dpt_11634276927710606</localIdentifier>
1664                </dgMetadataID>
1665                <dgMetadataDescription>
1666                    <metadataDescriptionID>
1667                        <schemeIdentifier>NDG-B0</schemeIdentifier>
1668                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1669                        <localIdentifier>metdesc_11634276927710607</localIdentifier>
1670                    </metadataDescriptionID>
1671                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
1672                    <abstract>
1673                        <abstractText/>
1674                    </abstract>
1675                    <descriptionSection>
1676                        <dgDescriptionText/>
1677                        <contentType>text/plain</contentType>
1678                    </descriptionSection>
1679                    <descriptionSection>
1680                        <descriptionOnlineReference>
1681                            <dgSimpleLink>
1682                                <name>URI</name>
1683                                <URI/>
1684                            </dgSimpleLink>
1685                        </descriptionOnlineReference>
1686                    </descriptionSection>
1687                </dgMetadataDescription>
1688                <name>Leeds: J(o1d) filter radiometer</name>
1689                <abbreviation>leeds-fr-jo1d</abbreviation>
1690                <dgDataProductionTool>
1691                    <dgInstrument/>
1692                </dgDataProductionTool>
1693            </dataproductiontool>
1694            <observationstation>
1695                <dgMetadataID>
1696                    <schemeIdentifier>NDG-B0</schemeIdentifier>
1697                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1698                    <localIdentifier>obs_1162914786499342</localIdentifier>
1699                </dgMetadataID>
1700                <dgMetadataDescription>
1701                    <metadataDescriptionID>
1702                        <schemeIdentifier>NDG-B0</schemeIdentifier>
1703                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1704                        <localIdentifier>metdesc_116291478659343</localIdentifier>
1705                    </metadataDescriptionID>
1706                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
1707                    <abstract>
1708                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1709                    </abstract>
1710                    <descriptionSection>
1711                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1712&lt;P&gt;
1713Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1714&lt;P&gt;
1715Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1716&lt;P&gt;
1717Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1718&lt;P&gt;
1719The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
1720                        <contentType>text/plain</contentType>
1721                    </descriptionSection>
1722                    <descriptionSection>
1723                        <descriptionOnlineReference>
1724                            <dgSimpleLink>
1725                                <name>URI</name>
1726                                <URI>www.antarctica.ac.uk/Living_and_Working/Stations/Halley/index.php</URI>
1727                            </dgSimpleLink>
1728                        </descriptionOnlineReference>
1729                    </descriptionSection>
1730                </dgMetadataDescription>
1731                <name>Halley Bay, Antarctica</name>
1732                <abbreviation/>
1733                <dgObservationStation>
1734                    <contactDetails>
1735                        <fax>unknown</fax>
1736                        <telephone>unknown</telephone>
1737                        <address>
1738                            <addressline>unknown</addressline>
1739                            <city>unknown</city>
1740                            <postcode>unknown</postcode>
1741                            <country>unknown</country>
1742                        </address>
1743                        <URI>unknown</URI>
1744                    </contactDetails>
1745                    <dgStationaryPlatform>
1746                        <position>
1747                            <positionLatitude>0</positionLatitude>
1748                            <positionLongitude>0</positionLongitude>
1749                        </position>
1750                    </dgStationaryPlatform>
1751                </dgObservationStation>
1752            </observationstation>
1753        </RelatedDeployment>
1754        <RelatedDeployment>
1755            <DateStart>2005-01-10</DateStart>
1756            <DateEnd>2005-02-10</DateEnd>
1757            <dgMetadataID>
1758                <schemeIdentifier>NDG-B0</schemeIdentifier>
1759                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1760                <localIdentifier>dep_11721932812115510</localIdentifier>
1761            </dgMetadataID>
1762            <activity>
1763                <error>not found</error>
1764                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1765                <localIdentifier>dataent_activity_chablis</localIdentifier>
1766            </activity>
1767            <dataproductiontool>
1768                <dgMetadataID>
1769                    <schemeIdentifier>NDG-B0</schemeIdentifier>
1770                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1771                    <localIdentifier>dpt_11634276925510602</localIdentifier>
1772                </dgMetadataID>
1773                <dgMetadataDescription>
1774                    <metadataDescriptionID>
1775                        <schemeIdentifier>NDG-B0</schemeIdentifier>
1776                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1777                        <localIdentifier>metdesc_11634276925510603</localIdentifier>
1778                    </metadataDescriptionID>
1779                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
1780                    <abstract>
1781                        <abstractText>Instrument developed to measure OH and HO2 - a challenging problem but important free radicals to measure due to their role in atmopsheric chemistry. The laser induced fluorescence at low pressure is measured.</abstractText>
1782                    </abstract>
1783                    <descriptionSection>
1784                        <dgDescriptionText>This instrument is part of the Universities Facility for Atmospheric Measurement.</dgDescriptionText>
1785                        <contentType>text/plain</contentType>
1786                    </descriptionSection>
1787                    <descriptionSection>
1788                        <descriptionOnlineReference>
1789                            <dgSimpleLink>
1790                                <name>URI</name>
1791                                <URI/>
1792                            </dgSimpleLink>
1793                        </descriptionOnlineReference>
1794                    </descriptionSection>
1795                </dgMetadataDescription>
1796                <name>Leeds: Fluorecence Assay by Gas Expansion instrument (FAGE)</name>
1797                <abbreviation>leeds-fage</abbreviation>
1798                <dgDataProductionTool>
1799                    <dgInstrument/>
1800                </dgDataProductionTool>
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1805                    <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1806                    <localIdentifier>obs_1162914786499342</localIdentifier>
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1810                        <schemeIdentifier>NDG-B0</schemeIdentifier>
1811                        <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
1812                        <localIdentifier>metdesc_116291478659343</localIdentifier>
1813                    </metadataDescriptionID>
1814                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
1815                    <abstract>
1816                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1817                    </abstract>
1818                    <descriptionSection>
1819                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1820&lt;P&gt;
1821Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1822&lt;P&gt;
1823Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1824&lt;P&gt;
1825Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1826&lt;P&gt;
1827The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
1828                        <contentType>text/plain</contentType>
1829                    </descriptionSection>
1830                    <descriptionSection>
1831                        <descriptionOnlineReference>
1832                            <dgSimpleLink>
1833                                <name>URI</name>
1834                                <URI>www.antarctica.ac.uk/Living_and_Working/Stations/Halley/index.php</URI>
1835                            </dgSimpleLink>
1836                        </descriptionOnlineReference>
1837                    </descriptionSection>
1838                </dgMetadataDescription>
1839                <name>Halley Bay, Antarctica</name>
1840                <abbreviation/>
1841                <dgObservationStation>
1842                    <contactDetails>
1843                        <fax>unknown</fax>
1844                        <telephone>unknown</telephone>
1845                        <address>
1846                            <addressline>unknown</addressline>
1847                            <city>unknown</city>
1848                            <postcode>unknown</postcode>
1849                            <country>unknown</country>
1850                        </address>
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1852                    </contactDetails>
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1854                        <position>
1855                            <positionLatitude>0</positionLatitude>
1856                            <positionLongitude>0</positionLongitude>
1857                        </position>
1858                    </dgStationaryPlatform>
1859                </dgObservationStation>
1860            </observationstation>
1861        </RelatedDeployment>
1862        <RelatedDeployment>
1863            <DateStart>2005-01-10</DateStart>
1864            <DateEnd>2005-02-10</DateEnd>
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1866                <schemeIdentifier>NDG-B0</schemeIdentifier>
1867                <repositoryIdentifier>badc.nerc.ac.uk</repositoryIdentifier>
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1887                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
1888                    <abstract>
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1904                <name>Leeds: Dew Point Hygrometer</name>
1905                <abbreviation>leeds-dph</abbreviation>
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1923                    <abstract>
1924                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
1925                    </abstract>
1926                    <descriptionSection>
1927                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
1928&lt;P&gt;
1929Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
1930&lt;P&gt;
1931Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
1932&lt;P&gt;
1933Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
1934&lt;P&gt;
1935The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
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1947                <name>Halley Bay, Antarctica</name>
1948                <abbreviation/>
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1971            <DateStart>2005-01-26</DateStart>
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2012                <name>Imperial: PEroxy Radical Chemical Amplification (PERCA) technique</name>
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2031                    <abstract>
2032                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2033                    </abstract>
2034                    <descriptionSection>
2035                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2036&lt;P&gt;
2037Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2038&lt;P&gt;
2039Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2040&lt;P&gt;
2041Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2042&lt;P&gt;
2043The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2044                        <contentType>text/plain</contentType>
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2053                    </descriptionSection>
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2055                <name>Halley Bay, Antarctica</name>
2056                <abbreviation/>
2057                <dgObservationStation>
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2139                    <abstract>
2140                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2141                    </abstract>
2142                    <descriptionSection>
2143                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2144&lt;P&gt;
2145Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2146&lt;P&gt;
2147Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2148&lt;P&gt;
2149Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2150&lt;P&gt;
2151The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2152                        <contentType>text/plain</contentType>
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2163                <name>Halley Bay, Antarctica</name>
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2209                        <localIdentifier>metdesc_11634276698710179</localIdentifier>
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2211                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
2212                    <abstract>
2213                        <abstractText/>
2214                    </abstract>
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2228                <name>British Antarctic Survey: Spectral Radiometer</name>
2229                <abbreviation>bas-specrad</abbreviation>
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2247                    <abstract>
2248                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2249                    </abstract>
2250                    <descriptionSection>
2251                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2252&lt;P&gt;
2253Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2254&lt;P&gt;
2255Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2256&lt;P&gt;
2257Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2258&lt;P&gt;
2259The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2260                        <contentType>text/plain</contentType>
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2268                        </descriptionOnlineReference>
2269                    </descriptionSection>
2270                </dgMetadataDescription>
2271                <name>Halley Bay, Antarctica</name>
2272                <abbreviation/>
2273                <dgObservationStation>
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2275                        <fax>unknown</fax>
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2278                            <addressline>unknown</addressline>
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2280                            <postcode>unknown</postcode>
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2284                    </contactDetails>
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2291                </dgObservationStation>
2292            </observationstation>
2293        </RelatedDeployment>
2294        <RelatedDeployment>
2295            <DateStart>2004-03-08</DateStart>
2296            <DateEnd>2004-06-18</DateEnd>
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2319                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
2320                    <abstract>
2321                        <abstractText/>
2322                    </abstract>
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2325                        <contentType>text/plain</contentType>
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2335                </dgMetadataDescription>
2336                <name>British Antarctic Survey: Snow samples - Ion Chromatograph analysis</name>
2337                <abbreviation>bas-snowsamples</abbreviation>
2338                <dgDataProductionTool>
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2354                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
2355                    <abstract>
2356                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2357                    </abstract>
2358                    <descriptionSection>
2359                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2360&lt;P&gt;
2361Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2362&lt;P&gt;
2363Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2364&lt;P&gt;
2365Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2366&lt;P&gt;
2367The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2368                        <contentType>text/plain</contentType>
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2370                    <descriptionSection>
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2374                                <URI>www.antarctica.ac.uk/Living_and_Working/Stations/Halley/index.php</URI>
2375                            </dgSimpleLink>
2376                        </descriptionOnlineReference>
2377                    </descriptionSection>
2378                </dgMetadataDescription>
2379                <name>Halley Bay, Antarctica</name>
2380                <abbreviation/>
2381                <dgObservationStation>
2382                    <contactDetails>
2383                        <fax>unknown</fax>
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2386                            <addressline>unknown</addressline>
2387                            <city>unknown</city>
2388                            <postcode>unknown</postcode>
2389                            <country>unknown</country>
2390                        </address>
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2401        </RelatedDeployment>
2402        <RelatedDeployment>
2403            <DateStart>2004-01-01</DateStart>
2404            <DateEnd>2005-02-11</DateEnd>
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2427                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
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2429                        <abstractText/>
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2444                <name>British Antarctic Survey: Metsensor (SIMPSON)</name>
2445                <abbreviation>bas-simpson-metsensor</abbreviation>
2446                <dgDataProductionTool>
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2461                    </metadataDescriptionID>
2462                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
2463                    <abstract>
2464                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2465                    </abstract>
2466                    <descriptionSection>
2467                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2468&lt;P&gt;
2469Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2470&lt;P&gt;
2471Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2472&lt;P&gt;
2473Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2474&lt;P&gt;
2475The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2476                        <contentType>text/plain</contentType>
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2482                                <URI>www.antarctica.ac.uk/Living_and_Working/Stations/Halley/index.php</URI>
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2487                <name>Halley Bay, Antarctica</name>
2488                <abbreviation/>
2489                <dgObservationStation>
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2534                    </metadataDescriptionID>
2535                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
2536                    <abstract>
2537                        <abstractText>Metsensors on a 4 meter mast at the Halley CASLab site (Antarctica), including instruments to measure RH, temperature, wind direction and wind speed.</abstractText>
2538                    </abstract>
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2552                <name>British Antarctic Survey: Metsensor (CASLAB)</name>
2553                <abbreviation>bas-caslab-metsensor</abbreviation>
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2555                    <dgInstrument/>
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2569                    </metadataDescriptionID>
2570                    <metadataDescriptionLastUpdated>2007-02-23</metadataDescriptionLastUpdated>
2571                    <abstract>
2572                        <abstractText>The Clean Air Sector Laboratory (CASLab) is located 1km from the Halley station in Antarctica and is dedicated to studies of atmospheric chemistry, air/snow exchange and boundary layer meteorology.</abstractText>
2573                    </abstract>
2574                    <descriptionSection>
2575                        <dgDescriptionText>CASLab is located 1km from Halley station, in a clean air sector that receives minimal interference from station generators. Routine access is by ski or on foot, to avoid contamination of the area.
2576&lt;P&gt;The CASLab was commissioned in January 2003, and has been used for an ongoing programme of aerosol and fundamental photochemistry research. It has specialised inlets to allow representative sampling of aerosols, and trace gas sampling is done from a central inlet stack with very short residence time.
2577&lt;P&gt;As well as ongoing research, CASLab hosts measurement intensives such as the extensive CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow)
2578&lt;P&gt;
2579Results from CASLab science will help us to understand how the natural unpolluted atmosphere behaves, and also the way ice core records were built up and hence exactly what the signals in ice mean.</dgDescriptionText>
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2590                </dgMetadataDescription>
2591                <name>Halley Clean Air Sector Laboratory (CASLab)</name>
2592                <abbreviation>caslab</abbreviation>
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2638                    </metadataDescriptionID>
2639                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
2640                    <abstract>
2641                        <abstractText/>
2642                    </abstract>
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2656                <name>British Antarctic Survey: NOx chemiluminescence analyser</name>
2657                <abbreviation>bas-noxy</abbreviation>
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2674                    <metadataDescriptionLastUpdated>2007-02-23</metadataDescriptionLastUpdated>
2675                    <abstract>
2676                        <abstractText>The Clean Air Sector Laboratory (CASLab) is located 1km from the Halley station in Antarctica and is dedicated to studies of atmospheric chemistry, air/snow exchange and boundary layer meteorology.</abstractText>
2677                    </abstract>
2678                    <descriptionSection>
2679                        <dgDescriptionText>CASLab is located 1km from Halley station, in a clean air sector that receives minimal interference from station generators. Routine access is by ski or on foot, to avoid contamination of the area.
2680&lt;P&gt;The CASLab was commissioned in January 2003, and has been used for an ongoing programme of aerosol and fundamental photochemistry research. It has specialised inlets to allow representative sampling of aerosols, and trace gas sampling is done from a central inlet stack with very short residence time.
2681&lt;P&gt;As well as ongoing research, CASLab hosts measurement intensives such as the extensive CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow)
2682&lt;P&gt;
2683Results from CASLab science will help us to understand how the natural unpolluted atmosphere behaves, and also the way ice core records were built up and hence exactly what the signals in ice mean.</dgDescriptionText>
2684                        <contentType>text/plain</contentType>
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2686                    <descriptionSection>
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2690                                <URI>www.antarctica.ac.uk/BAS_Science/programmes2005-2010/CACHE/projects/CEFAC/caslab/index.html</URI>
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2692                        </descriptionOnlineReference>
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2694                </dgMetadataDescription>
2695                <name>Halley Clean Air Sector Laboratory (CASLab)</name>
2696                <abbreviation>caslab</abbreviation>
2697                <dgObservationStation>
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2718        <RelatedDeployment>
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2743                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
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2760                <name>British Antarctic Survey: Filters - Ion Chromatograph analysis</name>
2761                <abbreviation>bas-filters</abbreviation>
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2779                    <abstract>
2780                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2781                    </abstract>
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2783                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2784&lt;P&gt;
2785Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2786&lt;P&gt;
2787Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2788&lt;P&gt;
2789Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2790&lt;P&gt;
2791The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2792                        <contentType>text/plain</contentType>
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2802                </dgMetadataDescription>
2803                <name>Halley Bay, Antarctica</name>
2804                <abbreviation/>
2805                <dgObservationStation>
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2827            <DateStart>2004-03-22</DateStart>
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2851                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
2852                    <abstract>
2853                        <abstractText/>
2854                    </abstract>
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2868                <name>British Antarctic Survey: Denuder HNO3</name>
2869                <abbreviation>bas-denuder-hno3</abbreviation>
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2886                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
2887                    <abstract>
2888                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2889                    </abstract>
2890                    <descriptionSection>
2891                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
2892&lt;P&gt;
2893Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
2894&lt;P&gt;
2895Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
2896&lt;P&gt;
2897Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
2898&lt;P&gt;
2899The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
2900                        <contentType>text/plain</contentType>
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2911                <name>Halley Bay, Antarctica</name>
2912                <abbreviation/>
2913                <dgObservationStation>
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2920                            <postcode>unknown</postcode>
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2922                        </address>
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2924                    </contactDetails>
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2931                </dgObservationStation>
2932            </observationstation>
2933        </RelatedDeployment>
2934        <RelatedDeployment>
2935            <DateStart>2004-11-01</DateStart>
2936            <DateEnd>2005-02-17</DateEnd>
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2959                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
2960                    <abstract>
2961                        <abstractText/>
2962                    </abstract>
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2975                </dgMetadataDescription>
2976                <name>British Antarctic Survey: Condensation Particle Counter (CPC)</name>
2977                <abbreviation>bas-cpc</abbreviation>
2978                <dgDataProductionTool>
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2994                    <metadataDescriptionLastUpdated>2006-11-07</metadataDescriptionLastUpdated>
2995                    <abstract>
2996                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
2997                    </abstract>
2998                    <descriptionSection>
2999                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
3000&lt;P&gt;
3001Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
3002&lt;P&gt;
3003Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
3004&lt;P&gt;
3005Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
3006&lt;P&gt;
3007The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
3008                        <contentType>text/plain</contentType>
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3014                                <URI>www.antarctica.ac.uk/Living_and_Working/Stations/Halley/index.php</URI>
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3016                        </descriptionOnlineReference>
3017                    </descriptionSection>
3018                </dgMetadataDescription>
3019                <name>Halley Bay, Antarctica</name>
3020                <abbreviation/>
3021                <dgObservationStation>
3022                    <contactDetails>
3023                        <fax>unknown</fax>
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3026                            <addressline>unknown</addressline>
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3028                            <postcode>unknown</postcode>
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3030                        </address>
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3041        </RelatedDeployment>
3042        <RelatedDeployment>
3043            <DateStart>2004-02-27</DateStart>
3044            <DateEnd>2004-02-27</DateEnd>
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3067                    <metadataDescriptionLastUpdated>2006-11-13</metadataDescriptionLastUpdated>
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3070                    </abstract>
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3084                <name>British Antarctic Survey: Aethalometer</name>
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3086                <dgDataProductionTool>
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3103                    <abstract>
3104                        <abstractText>Halley is the UK's most isolated station (75.35S, 26.39W) and is afloat on an ice shelf on the mainland of Antarctica. In winter there is darkness for 105 days - darkness relieved by magnificent auroral displays. The relief of Halley is a major undertaking with supplies being landed twice a year by ship onto the ice shelf and then towed on sledges by Sno-cats to Halley, some 12 km distant from the ice edge.</abstractText>
3105                    </abstract>
3106                    <descriptionSection>
3107                        <dgDescriptionText>Halley V is the fifth station to be built on the Brunt Ice Shelf. The first was established for the International Geophysical Year (IGY) in 1957-58, and named after the astronomer Edmond Halley. It filled an important gap in the IGY Antarctic network with studies in meteorology, glaciology, seismology, radio astronomy, and geospace science. Many of these studies have continued uninterrupted since then.
3108&lt;P&gt;
3109Studies at Halley are crucial for a global perspective on ozone depletion, atmospheric pollution, sea level rise and climate change. Ozone has been measured at Halley since 1956. A spring-time depletion in stratospheric ozone was discovered by BAS in 1985, and this led very quickly to the international response to curtail production of CFCs.
3110&lt;P&gt;
3111Halley, lying within the auroral zone, is ideally situated for geospace research. An HF (SHARE) radar, supported by a suite of other powerful radio and optical instruments including remote unmanned Automatic Geophysical Observatories, provides an unparalleled spatial picture of the consequences of geospace interactions in the upper atmosphere over an area of around three million square km above the South Pole.
3112&lt;P&gt;
3113Halley V contains a mix of building technologies. Three buildings are located on platforms on steel legs, which are jacked up annually to keep them clear of the accumulated snowfall. An accommodation building and a garage weighing over 50 tons are mounted on skis and towed each year to a new position. Halley I to Halley IV were built directly on the snow and were each abandoned within ten years, having been crushed by the overlying ice.
3114&lt;P&gt;
3115The station operates throughout the year with a maximum population of 65 in the summer and an average of 15 over winter. The Emperor penguin colony near Halley, which is present from May to February, is a special attraction, while other recreational trips take members further inland towards the "hinge zone" where the floating ice shelf is joined to the continent.</dgDescriptionText>
3116                        <contentType>text/plain</contentType>
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3127                <name>Halley Bay, Antarctica</name>
3128                <abbreviation/>
3129                <dgObservationStation>
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3192                <name>British Antarctic Survey: Aerolaser HCHO</name>
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3212                        <abstractText>The Clean Air Sector Laboratory (CASLab) is located 1km from the Halley station in Antarctica and is dedicated to studies of atmospheric chemistry, air/snow exchange and boundary layer meteorology.</abstractText>
3213                    </abstract>
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3215                        <dgDescriptionText>CASLab is located 1km from Halley station, in a clean air sector that receives minimal interference from station generators. Routine access is by ski or on foot, to avoid contamination of the area.
3216&lt;P&gt;The CASLab was commissioned in January 2003, and has been used for an ongoing programme of aerosol and fundamental photochemistry research. It has specialised inlets to allow representative sampling of aerosols, and trace gas sampling is done from a central inlet stack with very short residence time.
3217&lt;P&gt;As well as ongoing research, CASLab hosts measurement intensives such as the extensive CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow)
3218&lt;P&gt;
3219Results from CASLab science will help us to understand how the natural unpolluted atmosphere behaves, and also the way ice core records were built up and hence exactly what the signals in ice mean.</dgDescriptionText>
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3231                <name>Halley Clean Air Sector Laboratory (CASLab)</name>
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3296                <name>British Antarctic Survey: Aerolaser CO</name>
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3315                    <abstract>
3316                        <abstractText>The Clean Air Sector Laboratory (CASLab) is located 1km from the Halley station in Antarctica and is dedicated to studies of atmospheric chemistry, air/snow exchange and boundary layer meteorology.</abstractText>
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3319                        <dgDescriptionText>CASLab is located 1km from Halley station, in a clean air sector that receives minimal interference from station generators. Routine access is by ski or on foot, to avoid contamination of the area.
3320&lt;P&gt;The CASLab was commissioned in January 2003, and has been used for an ongoing programme of aerosol and fundamental photochemistry research. It has specialised inlets to allow representative sampling of aerosols, and trace gas sampling is done from a central inlet stack with very short residence time.
3321&lt;P&gt;As well as ongoing research, CASLab hosts measurement intensives such as the extensive CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow)
3322&lt;P&gt;
3323Results from CASLab science will help us to understand how the natural unpolluted atmosphere behaves, and also the way ice core records were built up and hence exactly what the signals in ice mean.</dgDescriptionText>
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3335                <name>Halley Clean Air Sector Laboratory (CASLab)</name>
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3420                        <abstractText>The Clean Air Sector Laboratory (CASLab) is located 1km from the Halley station in Antarctica and is dedicated to studies of atmospheric chemistry, air/snow exchange and boundary layer meteorology.</abstractText>
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3423                        <dgDescriptionText>CASLab is located 1km from Halley station, in a clean air sector that receives minimal interference from station generators. Routine access is by ski or on foot, to avoid contamination of the area.
3424&lt;P&gt;The CASLab was commissioned in January 2003, and has been used for an ongoing programme of aerosol and fundamental photochemistry research. It has specialised inlets to allow representative sampling of aerosols, and trace gas sampling is done from a central inlet stack with very short residence time.
3425&lt;P&gt;As well as ongoing research, CASLab hosts measurement intensives such as the extensive CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow)
3426&lt;P&gt;
3427Results from CASLab science will help us to understand how the natural unpolluted atmosphere behaves, and also the way ice core records were built up and hence exactly what the signals in ice mean.</dgDescriptionText>
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