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<DIF xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.7.1.xsd">
  <Entry_ID>NSIDC-0412</Entry_ID>
  <Entry_Title>Gases in Firn Air and Shallow Ice at the WAIS Drilling Site, Antarctica</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Eric Saltzman</Dataset_Creator>
    <Dataset_Title>Gases in Firn Air and Shallow Ice at the WAIS Drilling Site, Antarctica</Dataset_Title>
    <Dataset_Release_Date>2009-07-30</Dataset_Release_Date>
    <Dataset_Release_Place>Boulder, Colorado USA</Dataset_Release_Place>
    <Dataset_Publisher>NSIDC: National Snow and Ice Data Center</Dataset_Publisher>
    <Online_Resource>http://nsidc.org/data/nsidc-0412.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5251G40</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Eric</First_Name>
    <Last_Name>Saltzman</Last_Name>
    <Email>esaltzma@uci.edu</Email>
    <Phone>1 949 824-3936 </Phone>
    <Fax>1 949  824-3874 </Fax>
    <Contact_Address>
      <Address>University of California, Irvine</Address>
      <Address>Department of Earth System Science</Address>
      <Address>Department of Earth System Science</Address>
      <Address>University of California, Irvine</Address>
      <City>Irvine</City>
      <Province_or_State>CA</Province_or_State>
      <Postal_Code>92697-3100</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Technical Contact</Role>
    <First_Name>NSIDC</First_Name>
    <Last_Name>User Services</Last_Name>
    <Email>nsidc@nsidc.org</Email>
    <Phone>1 303 492-6199 x</Phone>
    <Fax>1 303  492-2468 x</Fax>
    <Contact_Address>
      <Address>National Snow and Ice Data Center</Address>
      <Address>CIRES, 449 UCB</Address>
      <Address>University of Colorado</Address>
      <City>Boulder</City>
      <Province_or_State>CO</Province_or_State>
      <Postal_Code>80309-0449</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Atmosphere</Topic>
    <Term>Atmospheric Chemistry</Term>
    <Variable_Level_1>Trace Gases/Trace Species</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Paleoclimate</Topic>
    <Term>Ice Core Records</Term>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>Antarctica</Keyword>
  <Keyword>Ice Core</Keyword>
  <Keyword>Ice Core Chemistry</Keyword>
  <Keyword>Ice Core Data</Keyword>
  <Keyword>Ice Core Gas Records</Keyword>
  <Sensor_Name>
    <Short_Name>CORING DEVICES</Short_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>FLASKS</Short_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>MASS SPECTROMETERS</Short_Name>
  </Sensor_Name>
  <Source_Name>
    <Short_Name>FIELD INVESTIGATION</Short_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>FIELD SURVEYS</Short_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>LABORATORY</Short_Name>
  </Source_Name>
  <Temporal_Coverage>
    <Start_Date>2006-11-01</Start_Date>
    <Stop_Date>2007-02-01</Stop_Date>
  </Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>2000 ybp</Paleo_Start_Date>
    <Paleo_Stop_Date>present</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-79.47</Southernmost_Latitude>
    <Northernmost_Latitude>-79.47</Northernmost_Latitude>
    <Westernmost_Longitude>112.09</Westernmost_Longitude>
    <Easternmost_Longitude>112.09</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>CONTINENT</Location_Category>
    <Location_Type>ANTARCTICA</Location_Type>
  </Location>
  <Project>
    <Short_Name>NSF/OPP</Short_Name>
    <Long_Name>Office of Polar Programs, National Science Foundation</Long_Name>
  </Project>
  <Project>
    <Short_Name>WAISCORES</Short_Name>
    <Long_Name>West Antarctic Ice Sheet Cores</Long_Name>
  </Project>
  <Project>
    <Short_Name>AMBS</Short_Name>
    <Long_Name>Antarctic Multibeam Bathymetry &amp; Geophysical Synthesis</Long_Name>
  </Project>
  <Data_Set_Language>English</Data_Set_Language>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>NSIDC</Short_Name>
      <Long_Name>National Snow and Ice Data Center</Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>http://nsidc.org</Data_Center_URL>
    <Personnel>
      <Role>Data Center Contact</Role>
      <First_Name>NSIDC</First_Name>
      <Last_Name>User Services</Last_Name>
      <Email>nsidc@nsidc.org</Email>
      <Phone>1 303 492-6199 </Phone>
      <Fax>1 303  492-2468 </Fax>
      <Contact_Address>
        <Address>National Snow and Ice Data Center</Address>
        <Address>CIRES, 449 UCB</Address>
        <Address>University of Colorado</Address>
        <City>Boulder</City>
        <Province_or_State>CO</Province_or_State>
        <Postal_Code>80309-0449</Postal_Code>
        <Country>USA</Country>
      </Contact_Address>
    </Personnel>
  </Data_Center>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>NSIDC_AGDC</Short_Name>
      <Long_Name>NSIDC Antarctic Glaciological Data Center</Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>http://nsidc.org/agdc/</Data_Center_URL>
    <Personnel>
      <Role>Data Center Contact</Role>
      <First_Name>NSIDC AGDC</First_Name>
      <Last_Name>User Services</Last_Name>
      <Email>nsidc@nsidc.org</Email>
      <Phone>1 303 492-6199 </Phone>
      <Fax>1 303  492-2468 </Fax>
      <Contact_Address>
        <Address>National Snow and Ice Data Center</Address>
        <Address>CIRES, 449 UCB</Address>
        <Address>University of Colorado</Address>
        <City>Boulder</City>
        <Province_or_State>CO</Province_or_State>
        <Postal_Code>80309-0449</Postal_Code>
        <Country>USA</Country>
      </Contact_Address>
    </Personnel>
  </Data_Center>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>40 KB</Distribution_Size>
    <Distribution_Format>Microsoft Excel</Distribution_Format>
  </Distribution>
  <Reference>Aydin, M., M. B. Williams, C. Tatum, and E. S. Saltzman. 2008. Carbonyl Sulfide in Air Extracted from a South Pole Ice Core: a 2,000-Year Record. Atmos. Chem. Phys., 8, 7533-7542. 

Aydin, M., M. B. Williams, and E. S. Saltzman. 2007. Feasibility of Reconstructing Paleoatmospheric Records of Selected Alkanes, Methyl Halides, and Sulfur Gases from Greenland Ice Cores. J. Geophys. Res., 112, D07312, doi:10.1029/2006JD008027.

Saltzman, E. S., M. Aydin, C. Tatum, and M. B. Williams. 2008. 2,000-Year Record of Atmospheric Methyl Bromide from a South Pole Ice Core. J. Geophys. Res., 113, D05304, doi:10.1029/2007JD008919.

 Williams, M. B., M. Aydin, C. Tatum, and E. S. Saltzman. 2007. A 2000-Year Atmospheric History of Methyl Chloride from a South Pole Ice Core: Evidence for Climate-Controlled Variability. Geophys. Res. Lett., 34, L07811, doi:10.1029/2006GL029142.</Reference>
  <Summary>This data set contains trace gas measurements of air extracted from ice core samples from the West Antarctic Ice Sheet Divide A core (WAIS-D 05A). The WAIS A core was dry-drilled at the WAIS site during the 2005-2006 Antarctic field season. Data include trace gas species including ethane (C2H6), propane (C3H8), n-butane (n-C4H10), carbonyl sulfide (COS), carbon disulfide (CS2), methyl chloride (CH3Cl), methyl bromide (CH3Br), acetonitrile (CH3CN), and chlorofluorocarbon-12 (CFC-12), for 57 ice core samples. The data are available via FTP in Microsoft Excel (.xls) file format.</Summary>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2009-07-30</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-20</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI</DIF_Revision_History>
</DIF>
