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  <Entry_ID>G10004</Entry_ID>
  <Entry_Title>Greenland Snow Pit and Core Stratigraphy (Analog and Digital Formats)</Entry_Title>
  <Data_Set_Citation>
    <Dataset_Creator>Benson, C. S. </Dataset_Creator>
    <Dataset_Title>Greenland Snow Pit and Core Stratigraphy (Analog and Digital Formats)</Dataset_Title>
    <Dataset_Release_Date>2013-01-30</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/g10004.html</Online_Resource>
    <Dataset_DOI>http://dx.doi.org/10.7265/N5RN35SK</Dataset_DOI>
  </Data_Set_Citation>
  <Personnel>
    <Role>Investigator</Role>
    <First_Name>C.</First_Name>
    <Middle_Name>S.</Middle_Name>
    <Last_Name>Benson</Last_Name>
  </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 Thickness/Ice Sheet Thickness</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>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Depth/Thickness</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Density</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Depth</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Facies</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow/Ice Temperature</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Cryosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Stratigraphy</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Paleoclimate</Topic>
    <Term>Ice Core Records</Term>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Glacier Thickness/Ice Sheet Thickness</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Glaciers/Ice Sheets</Term>
    <Variable_Level_1>Ice Sheets</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Ice Depth/Thickness</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Density</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Depth</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Facies</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow/Ice Temperature</Variable_Level_1>
  </Parameters>
  <Parameters>
    <Category>EARTH SCIENCE</Category>
    <Topic>Terrestrial Hydrosphere</Topic>
    <Term>Snow/Ice</Term>
    <Variable_Level_1>Snow Stratigraphy</Variable_Level_1>
  </Parameters>
  <ISO_Topic_Category>Climatology/Meteorology/Atmosphere</ISO_Topic_Category>
  <Keyword>Haefeli Rammsonde Penetrometer</Keyword>
  <Keyword>Ice Sheet Facies</Keyword>
  <Keyword>Snow Accumulation</Keyword>
  <Keyword>SNOW CORES</Keyword>
  <Keyword>Snow Densification</Keyword>
  <Keyword>Snow Stratigraphy</Keyword>
  <Keyword>Traverses</Keyword>
  <Keyword>Weston Bimetallic Thermometer</Keyword>
  <Sensor_Name>
    <Short_Name>CAMERAS</Short_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>PENETROMETERS</Short_Name>
  </Sensor_Name>
  <Sensor_Name>
    <Short_Name>THERMOMETERS</Short_Name>
  </Sensor_Name>
  <Source_Name>
    <Short_Name>GROUND-BASED OBSERVATIONS</Short_Name>
  </Source_Name>
  <Temporal_Coverage>
    <Start_Date>1911-01-01</Start_Date>
    <Stop_Date>1981-12-31</Stop_Date>
  </Temporal_Coverage>
  <Data_Set_Progress>complete</Data_Set_Progress>
  <Spatial_Coverage>
    <Southernmost_Latitude>69</Southernmost_Latitude>
    <Northernmost_Latitude>78</Northernmost_Latitude>
    <Westernmost_Longitude>-69</Westernmost_Longitude>
    <Easternmost_Longitude>-38</Easternmost_Longitude>
  </Spatial_Coverage>
  <Location>
    <Location_Category>CONTINENT</Location_Category>
    <Location_Type>NORTH AMERICA</Location_Type>
    <Location_Subregion1>GREENLAND</Location_Subregion1>
  </Location>
  <Location>
    <Location_Category>GEOGRAPHIC REGION</Location_Category>
    <Location_Type>ARCTIC</Location_Type>
  </Location>
  <Location>
    <Location_Category>GEOGRAPHIC REGION</Location_Category>
    <Location_Type>POLAR</Location_Type>
  </Location>
  <Data_Set_Language>English</Data_Set_Language>
  <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_ARC</Short_Name>
      <Long_Name>NSIDC Roger G. Barry Archives and Resource Center </Long_Name>
    </Data_Center_Name>
    <Data_Center_URL>http://nsidc.org/rocs/</Data_Center_URL>
    <Personnel>
      <Role>Data Center Contact</Role>
      <First_Name>NSIDC ARC</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 CIRES, 449 UCB 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>2.8 GB</Distribution_Size>
    <Distribution_Format>PDF</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>Paper</Distribution_Media>
    <Distribution_Format>Paper</Distribution_Format>
  </Distribution>
  <Distribution>
    <Distribution_Media>Microfiche</Distribution_Media>
  </Distribution>
  <Distribution>
    <Distribution_Media>FTP</Distribution_Media>
    <Distribution_Size>70 KB</Distribution_Size>
    <Distribution_Format>ASCII Text</Distribution_Format>
  </Distribution>
  <Reference>Benson, C.S. 1962. Stratigraphic Studies in the Snow and Firn of the Greenland Ice Sheet, CRREL Research Report 70. 

DeQuervain, A. and P. L. Mercanton. 1925. Resultats Scientifiques de l'Expedition Suisse au Groenland 1912- 1913, Meddelelser Om Gronland, Bd. 59, Nr. 5, p. 55-271. 

Hendrickson, K.N. 1955. "Mapping Program", in, Project Mint Julep Part I: Introduction, Narrative, and General Reports, Research Studies Institute, Air University, Maxwell Air Force Base, Alabama, Arctic Desert Tropic Information Center Publication A-104, p. 43-46. 

LaChapelle, E. 1955. "Ablation Studies in the Mint Julep Area, Southwest Greenland", in, Project Mint Julep Part II, Special Scientific Reports, Research Studies Institute, Air University, Maxwell Air Force Base, Alabama, Arctic Desert Tropic Information Center Publication A-104b, p.51-72. 

Schuster, R.L., 1954. Project Mint Julep Part III Snow Studies, CRREL Research Report 19. 

Koch, J.P. and A. Wegener. 1930. Wissenschaftliche Ergebnisse der Danischen Expedition nach Dronning Louise Land und quer uber das Inlandeis von Nordgronland (1912- 13 unter Leitung von Hauptmann J.P. Koch), Meddelelser Om Gronland, Bd. 75. 

Langway, C.C. Jr. 1961. Accumulation and Temperature on the Inland Ice of North Greenland, Journal of Glaciology Vol. 3, No. 30, p. 1017-1044. 

Malzer, H. 1964 Das Nivellment uber das Gronlandische Inlandeis der Internationalen Glaziologischen Gronland Expedition, EGIG 1957-1960 Vol. 3, No. 1, Kobenhavn. 

Hoffmann, W. 1964. Die Geodatische Lagemessung uber das Gronlandische Inlandeis der Internationalen Glaziologischen Gronland Expedition, EGIG 1957-1960 Vol. 2, No. 4, Kobenhavn. 

Mock, S. J. 1965. Glaciological Studies in the Vicinity of Camp Century Greenland, CRREL Research Report 157. 

Rinker, J. N. and S. J. Mock. 1967. Radar Ice Thickness Profiles; Northwest Greenland, CRREL Special Report 103. 

Mock, S. J. and Alford. 1964. Installation of Ice Movement Poles in Greenland, CRREL Special Report 67. 

Mock, S. J. and R. H. Ragle. 1963. Elevations on the Ice Sheet of Southern Greenland, CRREL Technical Report 124. 

Ragle, R. H. and T. C. Davis. 1962. South Greenland Traverses, Journal of Glaciology, Vol. 4, p. 129-131. 

Patterson, W. S. B. 1955. Altitudes on the Inland Ice in North Greenland, Meddelelser Om Gronland, Bd. 137, Nr. 1.

Bull, C. 1956. "Part IV. Seismic Investigations on the Northern Part of the Greenland Ice Sheet" , in, British North Greenland Expedition 1952-1954: Scientific Results, Geographical Journal, Vol. 122, p. 219-225. 

Lister, H. 1961. "Accumulation and Firnification in north Greenland", in Physical Geography of Greenland, XIX International Geographical Congress, Norden, 1960, B. Fristrup editor, Folia Geographica Danica, Tm. 9. 

U.S. Army Transportation Board. 1960. Report of Environmental Operation: Lead Dog 1960, Final Report Project Lead Dog, TCB-60-023-EO. 

Merlivat, L., et al. 1973. Tritium and Deuterium Content of the Snow in Greenland, Earth and Planetary Science Letters, Vol. 19, p. 235-240. 

Clausen, H. B., et al. 1980. Snow Accumulation Data for Several Points in Southern Greenland, personal communication to Dr. C.S. Benson. 

Koide, M., et al. 1977. Transuranic Depositional History in South Greenland Firn Layers, Nature, Vol. 269, p. 137 -139. 

Hammer, C. U., et al. 1978. Dating of Greenland Ice Cores by Flow Models, Isotopes, Volcanic Debris, and Continental Dust, Journal of Glaciology, Vol. 20, No. 82 p. 3-26. 

Ambach, W. and W. Dansgaard. 1970. Fallout and Climate Studies on Firn Cores from Carrefour, Greenland, Earth and Planetary Science Letters, Vol. 8, p. 311-316. 

MacKinnon, P. K. 1980. Ice Cores. Glaciological Data Report GD-8, World Data Center A for Glaciology, Boulder Colorado. 

Federer, B. 1969. Nivologische Arbeiten der Internationalen Glaziologischen Gronland Expedition EGIG 1968, Interner Bericht NR 491, Eidgenossishes Institut fur Schnee und Lowinenforschung, Weissfluhjoch, Davos. 

Sorge, E. 1933. The Scientific Results of the Wegener Expedition to Greenland, Geographic Journal, Vol. 81, p. 333-344.</Reference>
  <Summary>This data set is comprised of scientific field study notebooks from geologist Carl S. Benson describing his traverses of Greenland from 1952 to 1955. The notebooks contain data on Greenland snow accumulation, snow temperature, stratigrapy, ice sheet facies, and snow densification. Dr. Benson's notebooks also include a supplementary 1956 snow accumulation study done by the U.S. Air Force. The notebooks have been scanned and put into PDF format. In addition, a compendium of Greenland snow accumulation data, compiled by Dr. Benson in 1986, is included that spans 1911 to 1981. It is in ASCII text format.

During a four-year period from 1952 through 1955, Carl Benson, along with many other individuals and several other organizations, dug and studied 146 snow pits and made 288 supplementary snow hardness profiles with a ramsonde instrument along a 1100 mile traverse in Northwest Greenland (Benson 1962). For each exposed pit, temperature, density, ram hardness, and grain size were measured. The data in the notebooks include a listing of all pit locations, a summary matrix of data collected at each station; accumulation data adjusted for Fall 1954 and Fall 1955 reference horizons; average accumulation for all stations; integrated ram hardness (snow density); descriptive stratigraphy, pit profile temperature and density; and pit and core temperature, density, ram hardness, and stratigraphy for each location. Benson's notebooks for 1952 through 1954 were scanned at NSIDC and are available via FTP. As of January 2013, the 1955 notebooks are still in the process of being digitized. The physical notebooks are available for use on-site at NSIDC by appointment.</Summary>
  <IDN_Node>
    <Short_Name>USA/NOAA</Short_Name>
  </IDN_Node>
  <Metadata_Name>CEOS IDN DIF</Metadata_Name>
  <Metadata_Version>9.7</Metadata_Version>
  <DIF_Creation_Date>2013-01-30</DIF_Creation_Date>
  <Last_DIF_Revision_Date>2013-01-30</Last_DIF_Revision_Date>
  <DIF_Revision_History>New data set. </DIF_Revision_History>
</DIF>
