<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<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-0471</Entry_ID>
  <Entry_Title>Ion Concentrations from SPRESSO Ice Core, Antarctica</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Mayewski, P.A.</Dataset_Creator>
    <Dataset_Title>Ion Concentrations from SPRESSO Ice Core, Antarctica</Dataset_Title>
    <Dataset_Release_Date>2010-07-01</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-0471.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N508638J</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Paul</First_Name>
    <Middle_Name>A.</Middle_Name>
    <Last_Name>Mayewski</Last_Name>
    <Email>paul.mayewski@maine.edu</Email>
    <Email>climatechange@maine.edu</Email>
    <Phone>1 207 581-3019 </Phone>
    <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</Postal_Code>
      <Country>USA</Country>
    </Contact_Address>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>Elena</First_Name>
    <Last_Name>Korotkikh</Last_Name>
    <Email>Elena.korotkikh@maine.edu</Email>
    <Contact_Address>
      <Address>University of Maine</Address>
      <Address>Climate Change Institute</Address>
      <City>Orono</City>
      <Province_or_State>ME</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>Ice Sheets</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>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>Ions</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>Snow/Ice Chemistry</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>Antarctic Ice Sheet</Keyword>
  <Keyword>Ice</Keyword>
  <Keyword>Ice Analysis</Keyword>
  <Keyword>ice chemistry</Keyword>
  <Keyword>Ice Core</Keyword>
  <Keyword>Ice Cores</Keyword>
  <Keyword>Ice Sheet</Keyword>
  <Keyword>Ions</Keyword>
  <Keyword>US ITASE</Keyword>
  <Sensor_Name>
    <Short_Name>ICP-MS</Short_Name>
    <Long_Name>Inductively Coupled Plasma Mass Spectrometer</Long_Name>
  </Sensor_Name>
  <Source_Name>
    <Short_Name>LABORATORY</Short_Name>
  </Source_Name>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>2167 ybp</Paleo_Start_Date>
    <Paleo_Stop_Date>2167 ybp</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>-89.93</Southernmost_Latitude>
    <Northernmost_Latitude>-89.93</Northernmost_Latitude>
    <Westernmost_Longitude>-144.39</Westernmost_Longitude>
    <Easternmost_Longitude>-144.39</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_Resolution>
    <Vertical_Resolution>207.057 m</Vertical_Resolution>
  </Data_Resolution>
  <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>800 KB</Distribution_Size>
    <Distribution_Format>Microsoft Excel</Distribution_Format>
  </Distribution>
  <Reference>Sneed, S. B., P. A. Mayewski, and D. Dixon. 2010. Multi-ice core sodium, nss-sulfate, and methlysulfonate correlations with Antarctic sea ice extent - an enhanced ice core sea ice extent proxy. In review.

Dixon, D. A., P. A. Mayewski, I. Goodwin, R. Freeman, K. A. Maasch., S. B. Sneed, and G. Marshall. 2010. An ice core proxy for northerly air mass incursions (NAMI) into West Antarctica. In review.</Reference>
  <Summary>This data set contains ion measurements from co-registered samples from the South Pole Remote Earth Science and Seismological Observatory (SPRESSO) ice core. The core was drilled during the 2002-2003 field season as part of the International Trans-Antarctic Science Expedition (ITASE). Samples were collected for ion chromatography, inductively coupled plasma sector field mass spectrometry and stable water isotope analysis. Parameters include measurements of ion concentrations in ice core samples.

The data are available via FTP in Microsoft Excel format (.xls).</Summary>
  <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>2010-07-01</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-03-20</Last_DIF_Revision_Date>
  <DIF_Revision_History> Added DOI</DIF_Revision_History>
</DIF>
