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  <Entry_ID>NSIDC-0425</Entry_ID>
  <Entry_Title>US ITASE Stable Isotope Data, Antarctica</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Eric Steig</Dataset_Creator>
    <Dataset_Title>US ITASE Stable Isotope Data, Antarctica</Dataset_Title>
    <Dataset_Release_Date>2009-10-01</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-0425.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5NZ85MD</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Eric</First_Name>
    <Middle_Name>J.</Middle_Name>
    <Last_Name>Steig</Last_Name>
    <Email>steig@uw.edu</Email>
    <Phone>1 206 685-3715 </Phone>
    <Contact_Address>
      <Address>University of Washington</Address>
      <Address>Earth and Space Sciences</Address>
      <Address>University of Washington</Address>
      <Address>70 Johnson Hall</Address>
      <City>Seattle</City>
      <Province_or_State>WA</Province_or_State>
      <Postal_Code>98195</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>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Depth/Thickness</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Depth</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Paleoclimate</Topic>
    <Term>Ice Core Records</Term>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Paleoclimate</Topic>
    <Term>Ice Core Records</Term>
    <Variable_Level_1>Isotopes</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Depth/Thickness</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Depth</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>Depth</Keyword>
  <Keyword>Deuterium</Keyword>
  <Keyword>Firn Isotopes</Keyword>
  <Keyword>Ice Age</Keyword>
  <Keyword>Ice Core</Keyword>
  <Keyword>Ice Core Chemistry</Keyword>
  <Keyword>Ice Core Data</Keyword>
  <Keyword>Ice Core Gas Records</Keyword>
  <Keyword>Isotope</Keyword>
  <Keyword>Oxygen Isotopes</Keyword>
  <Keyword>Snow Depth</Keyword>
  <Sensor_Name>
    <Short_Name>AMS</Short_Name>
    <Long_Name>ACCELERATOR MASS SPECTROMETERS</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>PALMS</Short_Name>
    <Long_Name>Particle Analysis by Laser Mass Spectrometry</Long_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>1999-01-01</Start_Date>
    <Stop_Date>2007-12-31</Stop_Date>
  </Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1800</Paleo_Start_Date>
    <Paleo_Stop_Date>2007</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-90</Southernmost_Latitude>
    <Northernmost_Latitude>-65</Northernmost_Latitude>
    <Westernmost_Longitude>-130</Westernmost_Longitude>
    <Easternmost_Longitude>-88</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>CONTINENT</Location_Category>
    <Location_Type>ANTARCTICA</Location_Type>
  </Location>
  <Location>
    <Location_Category>GEOGRAPHIC REGION</Location_Category>
    <Location_Type>POLAR</Location_Type>
  </Location>
  <Project>
    <Short_Name>US-ITASE</Short_Name>
    <Long_Name>United States - International Antarctic Scientific Expedition</Long_Name>
  </Project>
  <Use_Constraints>Use of this data should be accompanied by citation of Steig et al., 2005, Annals of Glaciology and other references by Steig and Schneider, as appropriate.</Use_Constraints>
  <Data_Set_Language>English</Data_Set_Language>
  <Originating_Center>NSIDC_AGDC</Originating_Center>
  <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>788 KB</Distribution_Size>
    <Distribution_Format>ASCII Text</Distribution_Format>
  </Distribution>
  <Multimedia_Sample>
    <File>http://nsidc.org/data/docs/agdc/nsidc0425_steig/ITASE_cores_thumb.jpg</File>
    <Caption>Location Map</Caption>
  </Multimedia_Sample>
  <Reference>Steig E. J., P. A. Mayewski, D. A. Dixon, M. M. Frey, S. D. Kaspari, D. P. Schneider, S. A. Arcone, G. S. Hamilton, V. B. Spikes, M. Albert, D. Meese, A. J. Gow, C. A. Shuman, J. W. C. White, S. Sneed, J. Flaherty, and M. Wumkes. 2005. High-resolution ice cores from US ITASE (West Antarctica); development and validation of chronologies and estimate of precision and accuracy. Annals of Glaciology 41: 63-70.

Schneider D. P., E. J. Steig, and T. van Ommen. 2005. Interpretation of high resolution ice core stable isotope records from Antarctica: towards interannual climate reconstruction. Annals of Glaciology 541: 77-84. 

Schneider D. P., and E. J. Steig.  2008. Ice cores record significant 1940s Antarctic warmth related to tropical climate variability. Proceedings of the National Academy of Sciences, 105(34): 12154-12158   Schneider D. P., E. J. Steig, T. J. van Omment, D. A. Dixon, P. A. Mayweski, J. M. Jones, and C. M. Bitz. 2006. Antarctic temperatures of the past two centuries from ice cores.  Geophysical Research Letters 33, L16707, doi:10.1029/2006GL027057. 

Jacobel R., B. Welch, E. J. Steig, and D. P. Schneider. 2005. Hercules Dome, Antarctica  an optimal site for deep ice core drilling. Journal of Geophysical Research  Earth Surface 110: F01015, doi:10.1029/2004JF000188.

Schneider D. P., and D. C. Noone. 2008. Spatial covariance of water isotopes in ice cores during 20th Century climate change. Journal of Geophysical Research, 112: D18105, doi:10.1029/2007JD008652. Gregory, S., and D. Noone. 2008. Variability in the teleconnection between the El Nino-Southern Oscillation and West Antarctic climate. Journal of Geophysical Research, 113, D17110, doi:10.1029/2007JD009107.</Reference>
  <Summary>This data set includes stable isotope measurements from snow pits, firn, and ice cores collected by the the US component of the International Trans-Antarctic Scientific Expedition ( ITASE). The ITASE program aims to collect and interpret a continental-wide array of environmental parameters assembled through the coordinated efforts of scientists from several nations.

These data were collected between 1999 and 2007. The data have been compiled into single files for each sampling site, though in some cases a file contains data from more than one ice core or snow pit. Each file in the data set includes deuterium/hydrogen (&amp;#948;D) and/or 18-oxygen/16-oxygen (&amp;#948;18O) ratios, depths, and in some cases ice age or other information. Further details regarding the data are provided in each data file. Data are available via FTP in ASCII text format (.txt). Data were collected during five Antarctic field seasons from 1999 to 2007. Data from 1999 to 2002 are currently available. Data from 2003 to 2007 will be added in the future.</Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/agdc/index.html</URL>
    <Description>The Antarctic Glaciological Data Center (AGDC) Project Web Page</Description>
  </Related_URL>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2009-10-01</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-20</Last_DIF_Revision_Date>
  <DIF_Revision_History>Added DOI</DIF_Revision_History>
</DIF>
