<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_v9.8.4.xsd">
  <Entry_ID>noaa-icecore-17855</Entry_ID>
  <Entry_Title>GRIP Ice Core 248KYr Accumulation Rate Data</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Hammer, C.U.; Andersen, K.K.; Clausen, H.B.; Dahl-Jensen, D.; Hvidberg, C.S.; Iversen, P.</Dataset_Creator>
    <Dataset_Title>GRIP Ice Core 248KYr Accumulation Rate Data</Dataset_Title>
    <Dataset_Release_Date>1997-11-30</Dataset_Release_Date>
    <Dataset_Publisher>NCDC-Paleoclimatology</Dataset_Publisher>
    <Data_Presentation_Form>ONLINE Files</Data_Presentation_Form>
    <Dataset_DOI>Pending</Dataset_DOI>
    <Online_Resource>https://www.ncdc.noaa.gov/paleo/study/17855</Online_Resource>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>C.U.</First_Name>
    <Last_Name>Hammer</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>K.K.</First_Name>
    <Last_Name>Andersen</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>H.B.</First_Name>
    <Last_Name>Clausen</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>D.</First_Name>
    <Last_Name>Dahl-Jensen</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>C.S.</First_Name>
    <Last_Name>Hvidberg</Last_Name>
  </Personnel>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>P.</First_Name>
    <Last_Name>Iversen</Last_Name>
  </Personnel>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>ice cores</Term>
    <Detailed_Variable>depth at sample start,null,null,meter,null,ice cores,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>ice cores</Term>
    <Detailed_Variable>layer thickness,bulk ice,null,meter,null,ice cores,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>ice cores</Term>
    <Detailed_Variable>accumulation rate,bulk ice,null,gram per square centimeter per year,null,ice cores,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>ice cores</Term>
    <Detailed_Variable>ice age at sample start,null,null,calendar year before present,null,ice cores,null,null,N,null</Detailed_Variable>
  </Parameters>
  <Parameters>
    <Category>earth science</Category>
    <Topic>paleoclimate</Topic>
    <Term>ice core</Term>
    <Variable_Level_1>accumulation</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
  <Paleo_Temporal_Coverage>
    <Paleo_Start_Date>248763 cal yr BP</Paleo_Start_Date>
    <Paleo_Stop_Date>-39 cal yr BP</Paleo_Stop_Date>
  </Paleo_Temporal_Coverage>
  <Data_Set_Progress>Complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>72.58</Southernmost_Latitude>
    <Northernmost_Latitude>72.58</Northernmost_Latitude>
    <Westernmost_Longitude>-37.63</Westernmost_Longitude>
    <Easternmost_Longitude>-37.63</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>Continent</Location_Category>
    <Location_Type>North America</Location_Type>
    <Location_Subregion1>Greenland</Location_Subregion1>
    <Detailed_Location>GRIP&gt;LATITUDE 72.58&gt;LONGITUDE -37.63</Detailed_Location>
  </Location>
  <Access_Constraints>None</Access_Constraints>
  <Use_Constraints>Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.</Use_Constraints>
  <Data_Set_Language>English</Data_Set_Language>
  <Data_Center>
    <Data_Center_Name>
      <Short_Name>DOC/NOAA/NESDIS/NCEI</Short_Name>
      <Long_Name>National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce </Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>https://www.ncdc.noaa.gov/data-access/paleoclimatology-data</Data_Center_URL>
    <Personnel>
      <Role>DATA Center Contact</Role>
      <First_Name>Bruce</First_Name>
      <Last_Name>Bauer</Last_Name>
      <Email>bruce.a.bauer@noaa.gov</Email>
      <Email>paleo@noaa.gov</Email>
      <Phone>303-497-6280</Phone>
      <Fax>303-497-6513</Fax>
      <Contact_Address>
        <Address>325 Broadway, E/NE31</Address>
        <City>Boulder</City>
        <Province_or_State>CO</Province_or_State>
        <Postal_Code>80305-3328</Postal_Code>
        <Country>USA</Country>
      </Contact_Address>
    </Personnel>
  </Data_Center>
  <Distribution>
    <Distribution_Media>online</Distribution_Media>
    <Distribution_Format>ASCII</Distribution_Format>
  </Distribution>
  <Reference/>
  <Summary>
    <Abstract>Records of past temperature, precipitation, atmospheric trace gases, and other aspects of climate and environment derived from ice cores drilled on glaciers and ice caps around the world.  Parameter keywords describe what was measured in this data set.  Additional summary information can be found in the abstracts of papers listed in the data set citations.
 
          STUDY NOTES: GRI accumulation rate, based on d18O, plus layer thickness.

REFERENCES:
Hammer, C.U., K.K. Andersen, H.B. Clausen, D. Dahl-Jensen, C.S. Hvidberg,
and P. Iversen. 1997. The stratigraphic dating of the GRIP ice core.
Special Report of the Geophysical Department, Niels Bohr Institute for
Astronomy, Physics and Geophysics, University of Copenhagen.

Johnsen, S.J., D. Dahl-Jensen, W. Dansgaard, and N.S. Gundestrup. 1995.
Greenland palaeotemperatures derived from GRIP bore hole temperaure and ice core isotope profiles. Tellus 47B:624-629.

Dahl-Jensen, D., S.J. Johnsen, C.U. Hammer, H.B. Clausen, and J. Jouzel.
1993. Past accumulation rates derived from observed annual layers in the
GRIP ice core from Summit, central Greenland. Pages 517-532 in W.R.
Peltier, editor. Ice in the Climate System. Springer-Verlag, Berlin
Heidelberg, Germany.</Abstract>
  </Summary>
  <Related_URL>
    <URL_Content_Type>
      <Type>GET DATA</Type>
    </URL_Content_Type>
    <URL>https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/grip/physical/gripacum.txt</URL>
    <Description>Data File; GRIP Accumulation Rates</Description>
  </Related_URL>
  <IDN_Node>
    <Short_Name>USA/NOAA</Short_Name>
  </IDN_Node>
  <Metadata_Name>DIF</Metadata_Name>
  <Metadata_Version>Version 9.8.4</Metadata_Version>
  <DIF_Creation_Date>2018-12-11</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2018-12-11</Last_DIF_Revision_Date>
</DIF>
