Identification_Information:
   Dataset_Identifier: NSIDC-0501

   Citation: 
      Citation_Information: 
         Originator: MacGregor, J., K. Matsuoka, and M. Studinger
         Publication_Date: 20110815
         Title: Modeled Radar Attenuation Rate Profile at the Vostok 5G Ice Core Site, Antarctica
         Publication_Information: 
            Publication_Place: Boulder, Colorado USA
            Publisher: NSIDC: National Snow and Ice Data Center
         Online_Linkage: http://nsidc.org/data/nsidc-0501.html
         Online_Linkage: http://dx.doi.org/10.7265/N59K485D

   Description: 
      Abstract:
         This data set provides a modeled radar attenuation rate profile, showing the 
         predicted contributions from pure ice and impurities to radar attenuation at 
         the Vostok 5G ice core site in Antarctica, as well as the total attenuation 
         rate and its formal uncertainty. The model data are based on borehole 
         temperature logs, concentrations of major soluble ions measured from melted 
         ice core samples, and information about the electrical conductivity of ice. 
         Attenuation rates and their spatial variability are important constraints for 
         radar studies of ice sheets. Parameters include depth, total attenuation rate, 
         and attenuation rate contribution from pure ice, acidity, and salinity.

         Data are available via FTP as a text file (.txt) with columns in comma 
         separated value format.

      Purpose: scientific research
      Documentation: 
         User's_Guide: 
            Citation_Information: 
               Originator: MacGregor, J., K. Matsuoka, and M. Studinger
               Publication_Date: 20110815
               Title: Modeled Radar Attenuation Rate Profile at the Vostok 5G Ice Core Site, Antarctica
               Publication_Information: 
                  Publication_Place: Boulder, Colorado USA
                  Publisher: NSIDC: National Snow and Ice Data Center
               Online_Linkage: http://nsidc.org/data/docs/agdc/nsidc0501_macgregor1/index.html

   Time_Period_of_Content:
      Time_Period_Information:
         Range_of_Dates/Times:
            Beginning_Date: 20070101
            Ending_Date: 20081231
      Currentness_Reference: publication date

   Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: Unknown

   Spatial_Domain:
      Bounding_Coordinates:
         West_Bounding_Coordinate: 73.17
         East_Bounding_Coordinate: 73.17
         North_Bounding_Coordinate: -78.47
         South_Bounding_Coordinate: -78.47

   Keywords:
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
         Theme_Keyword: EARTH SCIENCE > Atmosphere > Precipitation > Snow
         Theme_Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Ice Sheets
      Theme:
         Theme_Keyword_Thesaurus: None
         Theme_Keyword: 
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
         Theme_Keyword: ION CHROMATOGRAPHS
         Theme_Keyword: THERMOMETERS
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
         Theme_Keyword: FIELD INVESTIGATION
         Theme_Keyword: FIELD SURVEYS
         Theme_Keyword: MODELS
      Theme:
         Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
         Theme_Keyword: climatologyMeteorologyAtmosphere
      Theme:
         Theme_Keyword_Thesaurus: None
         Theme_Keyword: Airborne Radar Sounding
         Theme_Keyword: Antarctic Ice Sheet
         Theme_Keyword: Ice Penetrating Radar
         Theme_Keyword: Ice Sheet
         Theme_Keyword: Lake Vostok
         Theme_Keyword: Model
         Theme_Keyword: Modeling
         Theme_Keyword: MODEL OUTPUT
         Theme_Keyword: MODELS
      Place:
         Place_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
         Place_Keyword: Continent > Antarctica
         Place_Keyword: Geographic Region > Polar

   Access_Constraints: None

   Use_Constraints: None

   Point_of_Contact:
      Contact_Information:
         Contact_Person_Primary:
            Contact_Person: NSIDC User Services
            Contact_Organization: National Snow and Ice Data Center
         Contact_Address:
            Address_Type: mailing
            Address: CIRES, 449 UCB
            Address: University of Colorado
            City: Boulder
            State_or_Province: CO
            Postal_Code: 80309-0449
            Country: USA
         Contact_Voice_Telephone: 1 303 492-6199 x
         Contact_Facsimile_Telephone: 1 303  492-2468 x
         Contact_Electronic_Mail_Address: nsidc@nsidc.org

Distribution_Information:
   Distributor:
      Contact_Information:
         Contact_Organization_Primary:
            Contact_Organization: National Snow and Ice Data Center
            Contact_Person: NSIDC User Services
         Contact_Address:
            Address_Type: mailing
            Address: National Snow and Ice Data Center
            Address: CIRES, 449 UCB
            Address: University of Colorado
            City: Boulder
            State_or_Province: CO
            Postal_Code: 80309-0449
            Country: USA
         Contact_Voice_Telephone: 1 303 492-6199 
         Contact_Facsimile_Telephone: 1 303  492-2468 
         Contact_Electronic_Mail_Address: nsidc@nsidc.org

   Resource_Description: NSIDC-0501

   Distribution_Liability:
      NSIDC cannot assume liability for any damages caused by any errors or 
      omissions in the data, nor as a result of the failure of the data to function 
      on a particular system. NSIDC makes no warranty, expressed or implied, nor 
      does the fact of distribution constitute such a warranty.

   Standard_Order_Process:
      Digital_Form:
         Digital_Transfer_Information:
            Format_Name: ASCII Text (.txt)
         Digital_Transfer_Option:
            Online_Option:
               Computer_Contact_Information:
                  Network_Address:
                     Network_Resource_Name: ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0501_macgregor_V01/
      Fees: None

Metadata_Reference_Information:
   Metadata_Date: 20130320

   Metadata_Review_Date: 20130320

   Metadata_Contact: 
      Contact_Information:
         Contact_Person_Primary:
            Contact_Person: NSIDC User Services
            Contact_Organization: National Snow and Ice Data Center
         Contact_Address:
            Address_Type: mailing
            Address: National Snow and Ice Data Center
            Address: CIRES, 449 UCB
            Address: University of Colorado
            City: Boulder
            State_or_Province: CO
            Postal_Code: 80309-0449
            Country: USA
         Contact_Voice_Telephone: 1 303 492-6199 
         Contact_Facsimile_Telephone: 1 303  492-2468 
         Contact_Electronic_Mail_Address: nsidc@nsidc.org

   Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata

   Metadata_Standard_Version: FGDC-STD-012-2002