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  <Entry_ID>NSIDC-0517</Entry_ID>
  <Entry_Title>AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Blankenship, D., and D. Young</Dataset_Creator>
    <Dataset_Title>AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica</Dataset_Title>
    <Dataset_Release_Date>2012-05-032012</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-0517.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5W95730</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Donald</First_Name>
    <Middle_Name>D.</Middle_Name>
    <Last_Name>Blankenship</Last_Name>
    <Email>blank@ig.utexas.edu</Email>
    <Contact_Address>
      <Address>University of Texas at Austin</Address>
      <Address>Institute for Geophysics</Address>
      <Address>4412 Spicewood Springs Rd. #600</Address>
      <City>Austin</City>
      <Province_or_State>TX</Province_or_State>
      <Postal_Code>78759-8500</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Duncan</First_Name>
    <Middle_Name>A.</Middle_Name>
    <Last_Name>Young</Last_Name>
    <Contact_Address>
      <Address>University of Texas at Austin</Address>
      <Address>Jackson School of Geosciences, Institute for Geophysics</Address>
      <Address>J.J. Pickle Research Campus</Address>
      <Address>Bldg. 196</Address>
      <Address>10100 Burnet Road (R2200)</Address>
      <Address>Austin, TX 78758-4445</Address>
      <City>Austin</City>
      <Province_or_State>Texas</Province_or_State>
      <Postal_Code>78758-4445</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>John</First_Name>
    <Middle_Name>W.</Middle_Name>
    <Last_Name>Holt</Last_Name>
    <Contact_Address>
      <Address>University of Texas at Austin</Address>
      <Address>Institute for Geophysics</Address>
      <Address>4412 Spicewood Springs Rd. #600</Address>
      <City>Austin</City>
      <Province_or_State>TX</Province_or_State>
      <Postal_Code> 78759-850</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Scott</First_Name>
    <Middle_Name>D.</Middle_Name>
    <Last_Name>Kempf</Last_Name>
    <Contact_Address>
      <Address>University of Texas at Austin</Address>
      <Address>Institute for Geophysics</Address>
      <Address>Jackson School of Geosciences, </Address>
      <Address>J.J. Pickle Research Campus Bldg. 196</Address>
      <Address>10100 Burnet Road (R2200) </Address>
      <City>Austin</City>
      <Province_or_State>Texas</Province_or_State>
      <Postal_Code>78758-4445</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>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glacier Elevation/Ice Sheet Elevation</Variable_Level_1>
  </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>Ice Sheets</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>Airborne geophysical survey of the Amundsen Sea Embayment, Antarctica (AGASEA)</Keyword>
  <Keyword>Airborne Radar Sounding</Keyword>
  <Keyword>Antarctic Ice Sheet</Keyword>
  <Keyword>Glacier</Keyword>
  <Keyword>glaciers</Keyword>
  <Keyword>GPS</Keyword>
  <Keyword>Ice Penetrating Radar</Keyword>
  <Keyword>Ice Sheet</Keyword>
  <Keyword>Ice Sheet Thickness</Keyword>
  <Keyword>Model Input Data</Keyword>
  <Keyword>Thwaites Glacier</Keyword>
  <Sensor_Name>
    <Short_Name>GPS</Short_Name>
    <Long_Name>Global Positioning System</Long_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>RADAR</Short_Name>
    <Long_Name>Radio Detection and Ranging</Long_Name>
  </Sensor_Name>
  <Source_Name>
    <Short_Name>AIRCRAFT</Short_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>DHC-6</Short_Name>
    <Long_Name>DeHavilland Twin Otter</Long_Name>
  </Source_Name>
  <Temporal_Coverage>
    <Start_Date>2004-12-10</Start_Date>
    <Stop_Date>2005-01-29</Stop_Date>
  </Temporal_Coverage>
  <Spatial_Coverage>
    <Southernmost_Latitude>-83</Southernmost_Latitude>
    <Northernmost_Latitude>-73</Northernmost_Latitude>
    <Westernmost_Longitude>-125</Westernmost_Longitude>
    <Easternmost_Longitude>-90</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>
  <Data_Set_Language>English</Data_Set_Language>
  <Originating_Center>UTX-AUSTIN/IG</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>71 MB</Distribution_Size>
    <Distribution_Format>ASCII Text</Distribution_Format>
  </Distribution>
  <Reference>Holt, J. W., D. D. Blankenship, D. L. Morse, D. A. Young, M. E. Peters, S. D. Kempf, T. G. Richter, D. G. Vaughan, and H. Corr. 2006. New Boundary Conditions for the West Antarctic Ice Sheet: Subglacial Topography of the Thwaites and Smith Glacier Catchments, Geophysical Research Letters, 33(L09502), 10.1029/2005GL025561. 

Peters, M. E., D. D. Blankenship, S. P. Carter, D. A. Young, S. D. Kempf, and J. W. Holt. 2007. Along-Track Focusing of Airborne Radar Sounding Data from West Antarctica for Improving Basal Reflection Analysis and Layer Detection, IEEE Transactions on Geoscience and Remote Sensing, 45(9), 2725-2736, 10.1109/TGRS.2007.897416. 

Peters, M. E., D. D. Blankenship, and D. L. Morse. 2005. Analysis Techniques for Coherent Airborne Radar Sounding: Application to West Antarctic Ice Streams, Journal of Geophysical Research, 110(B06303), 10.1029/2004JB003222.</Reference>
  <Summary>This data set contains line-based radar-derived ice thickness and bed elevation data, collected as part of the Airborne Geophysical Survey of the Amundsen Embayment (AGASEA) expedition, which took place over Thwaites Glacier in West Antarctica from 2004 to 2005. The data set includes ice thickness, ice sheet bed elevation, and ice sheet surface elevation, derived from ice-penetrating radar and aircraft GPS positions. The data are spaced on a 15 km by 15 km grid over the entire catchment of the glacier, and sampled at approximately 15 meters along track. Most of the radar data used for this dataset has been processed using a 1-D focusing algorithm, to reduce the along track resolution to tens of meters, to improve boundary conditions for ice sheet models. 

Data are available via FTP in space-delimited ASCII format.</Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://www.ig.utexas.edu/research/projects/agasea/</URL>
    <Description>AGASEA Home Page</Description>
  </Related_URL>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://www.ig.utexas.edu/research/projects/agasea/</URL>
    <Description>AGASEA Web Page</Description>
  </Related_URL>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2012-05-03</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-20</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI</DIF_Revision_History>
</DIF>
