gmd:Metadata_Information: 
	   gmd:Language:  eng; usa
	   gmd:Character_Set:  
	      gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="UTF8"
	   gmd:Hierarchy_Level:  
	      gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset"
	   gmd:Hierarchy_Level_Name:  Alkanes in Firn Air Samples, Antarctica and Greenland
	   gmd:Contact:  
	      gmd:CI_ResponsibleParty:  
	         gmd:individualName:  NSIDC User Services
	         gmd:organisationName:  National Snow and Ice Data Center
	         gmd:positionName:  none
	         gmd:contactInfo:  
	            gmd:CI_Contact:  
	               gmd:phone:  
	                  gmd:CI_Telephone:  
	                  gmd:voice:  1 303 492-6199 x
	               gmd:address:  
	                  gmd:deliveryPoint:  CIRES, 449 UCB
	                  gmd:city:  Boulder
	                  gmd:administrativeArea:  CO
	                  gmd:postalCode:  80309-0449
	                  gmd:country:  USA
	                  gmd:electronicMailAddress:  nsidc@nsidc.org
	               gmd:onlineResource:  
	                  gmd:CI_OnlineResource:  
	                     gmd:linkage:  http://nsidc.org
	         gmd:role:  
	            gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"
	   gmd:Date_Stamp:  
	      Date:  2014-07-28
	   gmd:Metadata_Standard_Name:  ISO 19115 Geographic Information - Metadata First Edition
	   gmd:Metadata_Standard_Version:  ISO 19115:2003
	   gmd:DataSet_URI:  http://nsidc.org/data/nsidc-0504.html
	   gmd:Identification_Information:  
	      gmd:MD_DataIdentification:  
	         gmd:citation:  
	            gmd:CI_Citation:  
	               gmd:title:  Alkanes in Firn Air Samples, Antarctica and Greenland
	               gmd:date:  
	                  gmd:CI_Date:  
	                     gmd:date:  2011
	                     gmd:dateType:  
	                        gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication"
	               gmd:editionDate:  
	                  gmd:Date:  2011-11-30
	               gmd:identifier:  NSIDC-0504
	               gmd:identifier:  http://dx.doi.org/10.7265/N5X9287C
	               gmd:citedResponsibleParty:  
	                  gmd:CI_ResponsibleParty:  
	                     gmd:individualName:  NSIDC User Services
	                     gmd:organisationName:  National Snow and Ice Data Center
	                     gmd:positionName:  none
	                     gmd:contactInfo:  
	                        gmd:CI_Contact:  
	                           gmd:phone:  
	                              gmd:CI_Telephone:  
	                              gmd:voice:  1 303 492-6199 
	                           gmd:address:  
	                              gmd:deliveryPoint:  National Snow and Ice Data Center
	                              gmd:city:  Boulder
	                              gmd:administrativeArea:  CO
	                              gmd:postalCode:  80309-0449
	                              gmd:country:  USA
	                              gmd:electronicMailAddress:  nsidc@nsidc.org
	                           gmd:onlineResource:  
	                              gmd:CI_OnlineResource:  
	                                 gmd:linkage:  http://nsidc.org
	                     gmd:role:  
	                        gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian"
	               gmd:citedResponsibleParty:  
	                  gmd:CI_ResponsibleParty:  
	                     gmd:individualName:  AGDC User Services
	                     gmd:organisationName:  Antarctic Glaciological Data Center
	                     gmd:positionName:  none
	                     gmd:contactInfo:  
	                        gmd:CI_Contact:  
	                           gmd:phone:  
	                              gmd:CI_Telephone:  
	                              gmd:voice:  1 303 492-6199 x
	                           gmd:address:  
	                              gmd:deliveryPoint:  National Snow and Ice Data Center
	                              gmd:city:  Boulder
	                              gmd:administrativeArea:  CO
	                              gmd:postalCode:  80309-0449
	                              gmd:country:  USA
	                              gmd:electronicMailAddress:  nsidc@nsidc.org
	                           gmd:onlineResource:  
	                              gmd:CI_OnlineResource:  
	                                 gmd:linkage:  http://nsidc.org/agdc/
	                     gmd:role:  
	                        gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian"
	         gmd:Abstract:  
	
	            This data set contains ethane, propane, and n-butane measurements in firn air 
	            from the South Pole and the West Antarctic Ice Sheet (WAIS) Divide in 
	            Antarctica, and from Summit, Greenland. The WAIS Divide and South Pole samples 
	            were collected in December to January of of 2005/06 and 2008/09, respectively. 
	            The Summit firn was sampled in the summer of 2006. Analyses were conducted on 
	            a gas chromatography - mass spectrometry (GC-MS) system at the University of 
	            California, Irvine. Measurements and the associated uncertainties are reported 
	            as dry air molar mixing ratios in part per trillion (ppt). The reported 
	            measurements for each sampling depth represent a mean of multiple measurements 
	            on more than one flask in most cases.

Data are available via FTP in Microsoft 
	            Excel (.xls) format.
	         gmd:Purpose:  Scientific Research
	         gmd:Credit:  Aydin, M. and E. Saltzman. 2011. Alkanes in Firn Air Samples, Antarctica and Greenland. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5X9287C. 
	         gmd:status:  
	            gmd:MD_ProgressCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ProgressCode" codeListValue="complete"
	      gmd:PointOfContact:  
	         gmd:CI_ResponsibleParty:  
	            gmd:individualName:  Murat Aydin
	            gmd:organisationName:  University of California, Irvine
	            gmd:positionName:  none
	            gmd:contactInfo:  
	               gmd:CI_Contact:  
	                  gmd:phone:  
	                     gmd:CI_Telephone:  
	                     gmd:voice:  1 949 824-6174 x5540
	                  gmd:address:  
	                     gmd:deliveryPoint:  University of California, Irvine
	                     gmd:city:  Irvine
	                     gmd:administrativeArea:  C
	                     gmd:postalCode:  92697-3100
	                     gmd:country:  USA
	                     gmd:electronicMailAddress:  maydin@uci.edu
	            gmd:role:  
	               gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator"
	      gmd:PointOfContact:  
	         gmd:CI_ResponsibleParty:  
	            gmd:individualName:  Eric Saltzman
	            gmd:organisationName:  University of California, Irvine
	            gmd:positionName:  none
	            gmd:contactInfo:  
	               gmd:CI_Contact:  
	                  gmd:phone:  
	                     gmd:CI_Telephone:  
	                     gmd:voice:  1 949 824-3936 
	                  gmd:address:  
	                     gmd:deliveryPoint:  Department of Earth System Science
	                     gmd:city:  Irvine
	                     gmd:administrativeArea:  CA
	                     gmd:postalCode:  92697-3100
	                     gmd:country:  USA
	                     gmd:electronicMailAddress:  esaltzma@uci.edu
	            gmd:role:  
	               gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="principalInvestigator"
	      gmd:PointOfContact:  
	         gmd:CI_ResponsibleParty:  
	            gmd:individualName:  NSIDC User Services
	            gmd:organisationName:  National Snow and Ice Data Center
	            gmd:positionName:  none
	            gmd:contactInfo:  
	               gmd:CI_Contact:  
	                  gmd:phone:  
	                     gmd:CI_Telephone:  
	                     gmd:voice:  1 303 492-6199 x
	                  gmd:address:  
	                     gmd:deliveryPoint:  CIRES, 449 UCB
	                     gmd:city:  Boulder
	                     gmd:administrativeArea:  CO
	                     gmd:postalCode:  80309-0449
	                     gmd:country:  USA
	                     gmd:electronicMailAddress:  nsidc@nsidc.org
	            gmd:role:  
	               gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"
	         gmd:resourceMaintenance:  
	            gmd:MD_MaintenanceInformation:  
	               gmd:maintenanceAndUpdateFrequency:  
	                  gmd:MD_MaintenanceFrequencyCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded"
	               gmd:updateScope:  
	                  gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset"
	               gmd:updateScope:  
	                  gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="series"
	               gmd:updateScope:  
	                  gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="attribute"
	               gmd:contact:  
	                  gmd:CI_ResponsibleParty:  
	                     gmd:individualName:  NSIDC User Services
	                     gmd:organisationName:  National Snow and Ice Data Center
	                     gmd:positionName:  none
	                     gmd:contactInfo:  
	                        gmd:CI_Contact:  
	                           gmd:phone:  
	                              gmd:CI_Telephone:  
	                              gmd:voice:  1 303 492-6199 x
	                           gmd:address:  
	                              gmd:deliveryPoint:  CIRES, 449 UCB
	                              gmd:city:  Boulder
	                              gmd:administrativeArea:  CO
	                              gmd:postalCode:  80309-0449
	                              gmd:country:  USA
	                              gmd:electronicMailAddress:  nsidc@nsidc.org
	                           gmd:onlineResource:  
	                              gmd:CI_OnlineResource:  
	                                 gmd:linkage:  http://nsidc.org
	                     gmd:role:  
	                        gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="pointOfContact"
	      gmd:Descriptive_Keywords:  
	         gmd:MD_Keywords:  
	            gmd:keyword:  Continent > Antarctica
	            gmd:keyword:  Continent > North America > Greenland
	            gmd:keyword:  Geographic Region > Polar
	            gmd:type:  
	               gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place"
	               gmd:thesaurusName:  
	                  gmd:CI_Citation:  
	                     gmd:title:  NASA / GCMD Location Keywords
	                     gmd:date:  
	                        gmd:CI_Date:  
	                           gmd:date:  2008-02-05
	                           gmd:dateType:  
	                              gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision"
	      gmd:Descriptive_Keywords:  
	         gmd:MD_Keywords:  
	            gmd:keyword:  EARTH SCIENCE > Atmosphere > Atmospheric Chemistry > Carbon and Hydrocarbon Compounds
	            gmd:keyword:  EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Firn
	            gmd:keyword:  EARTH SCIENCE > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Firn
	            gmd:keyword:  EARTH SCIENCE > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Hydrocarbons
	            gmd:type:  
	               gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="discipline"
	               gmd:thesaurusName:  
	                  gmd:CI_Citation:  
	                     gmd:title:  NASA / GCMD Science Keywords
	                     gmd:date:  
	                        gmd:CI_Date:  
	                           gmd:date:  2008-02-05
	                           gmd:dateType:  
	                              gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision"
	      gmd:Descriptive_Keywords:  
	         gmd:MD_Keywords:  
	            gmd:type:  
	               gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme"
	               gmd:thesaurusName:  
	                  gmd:CI_Citation:  
	                     gmd:title:  None
	                     gmd:date:  
	                        gmd:CI_Date:  
	                           gmd:date:  2008-01-24
	                           gmd:dateType:  
	                              gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision"
	      gmd:Descriptive_Keywords:  
	         gmd:MD_Keywords:  
	            gmd:keyword:  chromatography
	            gmd:keyword:  Firn
	            gmd:keyword:  firn air chemistry
	            gmd:keyword:  firn air samples
	            gmd:keyword:  GAS CHROMATOGRAPHY
	            gmd:keyword:  Mass Spectrometer
	            gmd:keyword:  Mass Spectrometry
	            gmd:keyword:  Polar Firn Air
	            gmd:type:  
	               gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme"
	               gmd:thesaurusName:  
	         gmd:resourceConstraints:  
	            gmd:MD_LegalConstraints:  
	               gmd:accessConstraints:  
	                  gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions"
	               gmd:useConstraints:  
	                  gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions"
	               gmd:otherConstraints:  
	                  Access Constraints : none
	               gmd:otherConstraints:  
	                  Use Constraints : none
	   gmd:Language:  eng; usa
	   gmd:Character_Set:  
	      gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="UTF8"
	         gmd:topicCategory:  
	            gmd:MD_topicCategoryCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_topicCategoryCode" codeListValue="climatologyMeteorologyAtmosphere"
	         gmd:Extent:  
	            gmd:EX_Extent:  
	               gmd:geographicElement:  
	                  gmd:Ex_GeographicBoundingBox:  
	                     gmd:westBoundLongitude:  -38.3833
	                     gmd:eastBoundLongitude:  112.09
	                     gmd:southBoundLatitude:  -90
	                     gmd:northBoundLatitude:  72.5833
	               gmd:temporalElement:  
	                  gmd:Ex_TemporalExtent:  
	                     gmd:extent:  
	                        gmd:TimePeriod:  
	                           gmd:beginPosition:  20051201
	                           gmd:endPosition:  20090131
	   gmd:Distribution_Information:  
	      gmd:MD_Distribution:  
	         gmd:distributor:  
	            gmd:MD_Distributor:  
	               gmd:distributorContact:  
	                  gmd:CI_ResponsibleParty:  
	                     gmd:individualName:  NSIDC User Services
	                     gmd:organisationName:  National Snow and Ice Data Center
	                     gmd:contactInfo:  
	                        gmd:CI_Contact:  
	                           gmd:phone:  
	                              gmd:CI_Telephone:  
	                              gmd:voice:  1 303 492-6199 
	                           gmd:address:  
	                              gmd:deliveryPoint:  National Snow and Ice Data Center
	                              gmd:city:  Boulder
	                              gmd:administrativeArea:  CO
	                              gmd:postalCode:  80309-0449
	                              gmd:country:  USA
	                              gmd:electronicMailAddress:  nsidc@nsidc.org
	                           gmd:onlineResource:  
	                              gmd:CI_OnlineResource:  
	                                 gmd:linkage:  http://nsidc.org
	                     gmd:role:  
	                        gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian"
	               gmd:distributorContact:  
	                  gmd:CI_ResponsibleParty:  
	                     gmd:individualName:  AGDC User Services
	                     gmd:organisationName:  Antarctic Glaciological Data Center
	                     gmd:contactInfo:  
	                        gmd:CI_Contact:  
	                           gmd:phone:  
	                              gmd:CI_Telephone:  
	                              gmd:voice:  1 303 492-6199 x
	                           gmd:address:  
	                              gmd:deliveryPoint:  National Snow and Ice Data Center
	                              gmd:city:  Boulder
	                              gmd:administrativeArea:  CO
	                              gmd:postalCode:  80309-0449
	                              gmd:country:  USA
	                              gmd:electronicMailAddress:  nsidc@nsidc.org
	                           gmd:onlineResource:  
	                              gmd:CI_OnlineResource:  
	                                 gmd:linkage:  http://nsidc.org/agdc/
	                     gmd:role:  
	                        gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian"
	         gmd:distributionFormat:  
	            gmd:MD_Format:  
	               gmd:name:  
	                  gco:CharacterString:  Microsoft Excel
	               gmd:version:  
	                  gco:CharacterString:  
	               gmd:specfication:  
	                  gco:CharacterString:   FTP 19 KB
	         gmd:transferOptions:  
	            gmd:MD_DigitalTransferOptions:  
	               gmd:onLine:  
	                  gmd:CI_OnlineResource:  
	                     gmd:linkage:  ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0504_aydin_V01/
	                     gmd:description:  Data Access URL
	                     gmd:function:  
	                        gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue=download
	                  gmd:CI_OnlineResource:  
	                     gmd:linkage:  http://nsidc.org/data/docs/agdc/nsidc0504-aydin/index.html
	                     gmd:description:  Documentation URL
	                     gmd:function:  
	                        gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue=information
	               gmd:offLine:  
	                  gmd:MD_Medium:  
	                     gmd:name:  
	                        gmd:MD_MediumNameCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_MediumNameCode" codeListValue="onLine"
	                     gmd:density:  19 
	                     gmd:densityUnits:  B
	                     gmd:mediumName:  FTP
	   gmi:Acquisition_Information:  
	      gmi:MI_Acquisition:  
	         gmi:instrument:  
	            gmi:MI_Instrument:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  GAS CHROMATOGRAPHS
	               gmi:type:  
	                  gco:CharacterString:  sensor
	         gmi:instrument:  
	            gmi:MI_Instrument:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  MASS SPECTROMETERS
	               gmi:type:  
	                  gco:CharacterString:  sensor
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  FIELD INVESTIGATION
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  LABORATORY
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A