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  <Entry_ID>NSIDC-0499</Entry_ID>
  <Entry_Title>Microparticle, Conductivity, and Density Measurements from the WAIS Divide Deep Ice Core, Antarctica</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Kreutz, K., B. Koffman, D. Breton, and G. Hamilton.</Dataset_Creator>
    <Dataset_Title>Microparticle, Conductivity, and Density Measurements from the WAIS Divide Deep Ice Core, Antarctica</Dataset_Title>
    <Dataset_Release_Date>2011-10-01</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-0499.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5K07264</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Karl</First_Name>
    <Last_Name>Kreutz</Last_Name>
    <Email>karl.kreutz@maine.edu</Email>
    <Phone>1 207 581-3011 </Phone>
    <Contact_Address>
      <Address>University of Maine</Address>
      <Address>Climate Change Institute</Address>
      <Address>236 Sawyer Environmental Research Center</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>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>Daniel</First_Name>
    <Last_Name>Breton</Last_Name>
    <Contact_Address>
      <Address>University of Maine</Address>
      <Address>Climate Change Institute</Address>
      <Address>120 Bennett Hall</Address>
      <City>Orono</City>
      <Province_or_State>Maine</Province_or_State>
      <Postal_Code>04469</Postal_Code>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Bess</First_Name>
    <Last_Name>Koffman</Last_Name>
    <Contact_Address>
      <Address>University of Maine</Address>
      <Address>236 Sawyer Hall</Address>
      <City>Orono</City>
      <Province_or_State>Maine</Province_or_State>
      <Postal_Code>04469</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>Ice Sheets</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow/Ice Chemistry</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>Electrical Properties</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Paleoclimate</Topic>
    <Term>Ice Core Records</Term>
    <Variable_Level_1>Ions</Variable_Level_1>
  </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>Paleoclimate</Topic>
    <Term>Ice Core Records</Term>
    <Variable_Level_1>Particulate Matter</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow/Ice Chemistry</Variable_Level_1>
  </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 Cores</Keyword>
  <Keyword>microparticles</Keyword>
  <Keyword>WAIS</Keyword>
  <Keyword>West Antarctica</Keyword>
  <Source_Name>
    <Short_Name>FIELD INVESTIGATION</Short_Name>
  </Source_Name>
  <Source_Name>
    <Short_Name>LABORATORY</Short_Name>
  </Source_Name>
  <Temporal_Coverage>
    <Start_Date>2006-01-01</Start_Date>
    <Stop_Date>2006-12-31</Stop_Date>
  </Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>1384</Paleo_Start_Date>
    <Paleo_Stop_Date>2006</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>-427 C. E.</Paleo_Start_Date>
    <Paleo_Stop_Date>2006</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-79.482778</Southernmost_Latitude>
    <Northernmost_Latitude>-79.482778</Northernmost_Latitude>
    <Westernmost_Longitude>-112.088333</Westernmost_Longitude>
    <Easternmost_Longitude>-112.088333</Easternmost_Longitude>
    <Maximum_Depth>160 meters</Maximum_Depth>
  </Spatial_Coverage>
  <Spatial_Coverage>
    <Southernmost_Latitude>-79.482778</Southernmost_Latitude>
    <Northernmost_Latitude>-79.482778</Northernmost_Latitude>
    <Westernmost_Longitude>112.088333</Westernmost_Longitude>
    <Easternmost_Longitude>112.088333</Easternmost_Longitude>
    <Maximum_Depth>577 meters</Maximum_Depth>
  </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_Resolution>
    <Vertical_Resolution>2 cm</Vertical_Resolution>
  </Data_Resolution>
  <Project>
    <Short_Name>WAISCORES</Short_Name>
    <Long_Name>West Antarctic Ice Sheet Cores</Long_Name>
  </Project>
  <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>23 MB</Distribution_Size>
    <Distribution_Format>ASCII Text</Distribution_Format>
  </Distribution>
  <Reference>Breton, D. J., G. S. Hamilton, C. T. Hess. 2009. Design, Optimization and Calibration of an Automated Density Gauge for Firn and Ice Cores. Journal of Glaciology, 55(194): 1092-1100. www.igsoc.org/journal/55/194/t09J008.pdf.</Reference>
  <Summary>This data set includes microparticle concentration, electrical conductivity, and density measurements from the West Antarctic Ice Sheet (WAIS) Divide deep ice core, WDC06A. Microparticle concentration data are reported as total particles per ml of meltwater. Concentration was measured using a laser detector and the University of Maine WAIS Melt Monitor system. Conductivity is measured in micro-Siemens per cm (uS/cm). Density data were collected on 3 by 3 by 100 cm sticks from the WDC06A core, using the Maine Automated Density Gauge Experiment (MADGE). Density data span 0 to 160 m in depth, while the particle and conductivity measurements span the upper 577 m of the core. 

Data are available via FTP in ASCII text format (.txt).</Summary>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2011-10-01</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-20</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI</DIF_Revision_History>
</DIF>
