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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-0102</Entry_ID>
  <Entry_Title>Images of Antarctic Ice Shelves</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Scambos, T., B. Raup, and J. Bohlander</Dataset_Creator>
    <Dataset_Title>Images of Antarctic Ice Shelves</Dataset_Title>
    <Dataset_Release_Date>2001-01-01</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-0102.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5NC5Z4N</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Ted</First_Name>
    <Last_Name>Scambos</Last_Name>
    <Email>scambos@nsidc.org</Email>
    <Contact_Address>
      <Address>University of Colorado</Address>
      <Address>Cooperative Institute for Research in Environmental Science</Address>
      <Address>National Snow and Ice Data Center</Address>
      <Address>CIRES,  449 UCB</Address>
      <City>Boulder</City>
      <Province_or_State>CO</Province_or_State>
      <Postal_Code>80309-0449</Postal_Code>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Bruce</First_Name>
    <Middle_Name>H.</Middle_Name>
    <Last_Name>Raup</Last_Name>
    <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>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Jennifer</First_Name>
    <Last_Name>Bohlander</Last_Name>
    <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>
    </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>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Ablation Zones/Accumulation Zones</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glaciers</Variable_Level_1>
    <Detailed_Variable>Ice Shelf</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glacier Topography/Ice Sheet Topography</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Icebergs</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Ice Sheets</Variable_Level_1>
    <Detailed_Variable>Ice Shelf</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Spectral/Engineering</Topic>
    <Term>Infrared Wavelengths</Term>
    <Variable_Level_1>Infrared Imagery</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Spectral/Engineering</Topic>
    <Term>Visible Wavelengths</Term>
    <Variable_Level_1>Visible Imagery</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Ablation Zones/Accumulation Zones</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glaciers</Variable_Level_1>
    <Detailed_Variable>Ice Shelf</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glacier Topography/Ice Sheet Topography</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Icebergs</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Ice Sheets</Variable_Level_1>
    <Detailed_Variable>Ice Shelf</Detailed_Variable>
  </Parameters>
  <Keyword>Antarctic</Keyword>
  <Keyword>AVHRR</Keyword>
  <Keyword>Calving</Keyword>
  <Keyword>Climate</Keyword>
  <Keyword>Cryosphere</Keyword>
  <Keyword>DAAC</Keyword>
  <Keyword>EOSDIS</Keyword>
  <Keyword>Icebergs</Keyword>
  <Keyword>Ice Shelves</Keyword>
  <Keyword>Melt</Keyword>
  <Keyword>NASA</Keyword>
  <Keyword>NSIDC</Keyword>
  <Keyword>Polar</Keyword>
  <Keyword>Remote Sensing</Keyword>
  <Keyword>Satellite</Keyword>
  <Location>
    <Location_Category>CONTINENT</Location_Category>
    <Location_Type>ANTARCTICA</Location_Type>
  </Location>
  <Data_Set_Language>English</Data_Set_Language>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>NSIDC_DAAC</Short_Name>
      <Long_Name>NASA DAAC at the National Snow and Ice Data Center</Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>http://nsidc.org/daac/index.html</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</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>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>NSIDC_USADCC</Short_Name>
      <Long_Name>NSIDC U.S. Antarctic Data Coordination Center</Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>http://nsidc.org/usadcc/</Data_Center_URL>
    <Personnel>
      <Role>Data Center Contact</Role>
      <First_Name>NSIDC USADCC</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>
  <Summary>Recent changes in the extent and stability of ice shelves in the Antarctic Peninsula prompted NSIDC to begin a monitoring program using data from the AVHRR Polar 1 km Data Set. NSIDC regularly reviews images of those ice shelves considered susceptible to rapid change due to climatic warming, and of several other major shelves that occasionally calve major icebergs.

The images in this site represent a selected subset of the available scenes, generally the clearest and most informative scenes available. The scenes are derived from either the AVHRR visible (vis) or thermal (temp) channels, enhanced by combining two channels using principal components processing. In the thermal images, bright areas are colder areas.  A few additional scenes from other sensors (MODIS, Landsat) are included to provide some supplemental information on ice shelf structure and events.

If you wish to save an image, you can do so through the 'Save image as' option of the browser's pop-up menu. For more information contact NSIDC User Services.</Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://nsidc.org/sotc/iceshelves.html</URL>
    <Description>State of the Cryosphere: Ice Shelves</Description>
  </Related_URL>
  <IDN_Node>
    <Short_Name>USA/NASA</Short_Name>
  </IDN_Node>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2001-01-01</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-13</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI</DIF_Revision_History>
</DIF>
