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  <Entry_ID>NSIDC-0507</Entry_ID>
  <Entry_Title>GPS Ice Flow Measurements, Allan Hills, Antarctica</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Kurbatov, A, G. Hamilton, V. Spikes and N. Spaulding.</Dataset_Creator>
    <Dataset_Title>GPS Ice Flow Measurements, Allan Hills, Antarctica</Dataset_Title>
    <Dataset_Release_Date>2011-12-20</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-0507.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5NS0RSX</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Andrei</First_Name>
    <Middle_Name>V.</Middle_Name>
    <Last_Name>Kurbatov</Last_Name>
    <Email>akurbatov@maine.edu</Email>
    <Phone>1 207 581-2840 </Phone>
    <Fax>1 207  581-1203 </Fax>
    <Contact_Address>
      <Address>Climate Change Institute</Address>
      <Address>University of Maine</Address>
      <Address>303 Bryand Global Science Building</Address>
      <City>Orono</City>
      <Province_or_State>ME</Province_or_State>
      <Postal_Code>04469</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Vandy</First_Name>
    <Middle_Name>Blue</Middle_Name>
    <Last_Name>Spikes</Last_Name>
    <Email>vbs@earthscienceagency.com</Email>
    <Phone>1 775 450-5988 </Phone>
    <Contact_Address>
      <Address>Earth Science Agency, LLC</Address>
      <Address>9879 E. Broken Spur Dr.</Address>
      <City>Scottsdale</City>
      <Province_or_State>AZ</Province_or_State>
      <Postal_Code>85262</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Gordon</First_Name>
    <Middle_Name>S.</Middle_Name>
    <Last_Name>Hamilton</Last_Name>
    <Email>gordon.hamilton@maine.edu</Email>
    <Contact_Address>
      <Address>Climate Change Institute</Address>
      <Address>Department of Earth Sciences</Address>
      <Address>Climate Change Institute</Address>
      <Address>Department of Earth Sciences</Address>
      <Address>University of Maine</Address>
      <City>Orono</City>
      <Province_or_State>ME</Province_or_State>
      <Postal_Code>04469-5790</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Nicole</First_Name>
    <Last_Name>Spaulding</Last_Name>
    <Contact_Address>
      <Address>University of Maine</Address>
      <Address>Climate Change Insitute</Address>
      <Address>303 Bryand Global Science Building
</Address>
      <City>Orono</City>
      <Province_or_State>Maine</Province_or_State>
      <Postal_Code>04469</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>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glacier Mass Balance/Ice Sheet Mass Balance</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glacier Motion/Ice Sheet Motion</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>Snow/Ice</Term>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Motion</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Velocity</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Motion</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Velocity</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>GPS</Keyword>
  <Keyword>GPS data</Keyword>
  <Keyword>GPS OBSERVATIONS</Keyword>
  <Keyword>Ice Motion</Keyword>
  <Keyword>MAPPING GPS DATA</Keyword>
  <Keyword>Vertical motions</Keyword>
  <Sensor_Name>
    <Short_Name>GPS</Short_Name>
    <Long_Name>Global Positioning System</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>1997-12-04</Start_Date>
    <Stop_Date>2010-12-19</Stop_Date>
  </Temporal_Coverage>
  <Data_Set_Progress>complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-76.83333</Southernmost_Latitude>
    <Northernmost_Latitude>-76.66667</Northernmost_Latitude>
    <Westernmost_Longitude>158.25</Westernmost_Longitude>
    <Easternmost_Longitude>159</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>UMAINE/CLIMATE</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>31 KB</Distribution_Size>
    <Distribution_Format>PDF</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>44 KB</Distribution_Size>
    <Distribution_Format>ASCII Text</Distribution_Format>
  </Distribution>
  <Reference>Spaulding, N. E., V. B. Spikes, G. S. Hamilton, P. A. Mayewski, N. W. Dunbar, R. P. Harvey, J. Schutt, and A. V. Kurbatov. 2012. Updates on Ice Motion and Mass Balance at the Allan Hills Icefield, Antarctica, with Implications for Paleoclimate Reconstructions. Journal of Glaciology. Vol. 58, No. 208, doi:10.3189/2012JoG11J176.

Spikes, V. B. 2000. Laser altimetry, mass balance, and meteorites: A two part study of ice streams and blue ice. Master's thesis: Ohio State University.</Reference>
  <Summary>This data set includes includes high-precision GPS measurements of steel poles within the Allan Hills Main Ice Field, Near Western Ice Field, and extending to the eastern edge of the Middle Western Ice Field, in Antarctica. These data were collected between December 1997 and December 2010. The extended survey period allowed for vertical and horizontal velocities to be calculated with low associated error. Parameters include locations of poles in latitude and longitude, as well as elevation, ice velocity, and accumulation rates.

Data are available via FTP as ASCII text files in comma separated value (.csv) format. Raw data are also provided as Trimble raw data, compressed in .zip format, and supplementary information is provided in .csv format and portable document format (.pdf).</Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>VIEW PROJECT HOME PAGE</Type>
    </URL_Content_Type>
    <URL>http://climatechange.umaine.edu/people/profile/andrei_kurbatov</URL>
    <Description>Investigator Home Page</Description>
  </Related_URL>
  <IDN_Node>
    <Short_Name>AMD/US</Short_Name>
  </IDN_Node>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2011-12-20</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-20</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI</DIF_Revision_History>
</DIF>
