Identification_Information:
   Dataset_Identifier: NSIDC-0304

   Citation: 
      Citation_Information: 
         Originator: John P. DiMarzio
         Publication_Date: 20070621
         Title: GLAS/ICESat 500 m Laser Altimetry Digital Elevation Model of Antarctica
         Publication_Information: 
            Publication_Place: Boulder, Colorado USA
            Publisher: NSIDC: National Snow and Ice Data Center
         Online_Linkage: http://nsidc.org/data/nsidc-0304.html

   Description: 
      Abstract:
         The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and 
         land Elevation Satellite (ICESat) provides global measurements of elevation, 
         and repeats measurements along nearly-identical tracks; its primary mission is 
         to measure changes in ice volume (mass balance) over time. This digital 
         elevation model (DEM) of Antarctica is derived from GLAS/ICESat laser 
         altimetry profile data and provides new surface elevation grids of the ice 
         sheets and coastal areas, with greater latitudinal extent and fewer 
         slope-related effects than radar altimetry.

         This DEM is generated from the first seven operational periods (from February 
         2003 through June 2005) of the GLAS instrument. It is provided on polar 
         stereographic grids at 500 m grid spacing. The grid covers all of Antarctica 
         north of 86° S. Elevations are reported as centimeters above the datums, 
         relative to both the WGS 84 ellipsoid and the EGM96 geoid, in two separate 
         elevation data files. A data quality map of the interpolation distance is 
         distributed in addition to the elevation data. ENVI header files are also 
         provided.

         The data are in 4-byte (long) signed integer binary files (big endian byte 
         order) and are available via FTP.

      Purpose: scientific research
      Documentation: 
         User's_Guide: 
            Citation_Information: 
               Originator: John P. DiMarzio
               Publication_Date: 20070621
               Title: GLAS/ICESat 500 m Laser Altimetry Digital Elevation Model of Antarctica
               Publication_Information: 
                  Publication_Place: Boulder, Colorado USA
                  Publisher: NSIDC: National Snow and Ice Data Center
               Online_Linkage: http://nsidc.org/data/docs/daac/nsidc0304_0305_glas_dems.gd.html

   Time_Period_of_Content:
      Time_Period_Information:
         Range_of_Dates/Times:
            Beginning_Date: 20030201
            Ending_Date: 20050630
      Currentness_Reference: publication date

   Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: Unknown

   Spatial_Domain:
      Bounding_Coordinates:
         West_Bounding_Coordinate: -180
         East_Bounding_Coordinate: 180
         North_Bounding_Coordinate: -63
         South_Bounding_Coordinate: -86

   Keywords:
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
         Theme_Keyword: EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
         Theme_Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Project Keywords
         Theme_Keyword: ICESAT > Ice, Cloud and Land Elevation Satellite
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
         Theme_Keyword: GLAS > Geoscience Laser Altimeter System
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
         Theme_Keyword: ICESAT > Ice, Cloud and Land Elevation Satellite
      Theme:
         Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
         Theme_Keyword: elevation
      Theme:
         Theme_Keyword_Thesaurus: None
         Theme_Keyword: Altimetry
         Theme_Keyword: Antarctica
         Theme_Keyword: Antarctic Ice Sheet
         Theme_Keyword: Dem
         Theme_Keyword: Digital Elevation Model
         Theme_Keyword: Elevation
         Theme_Keyword: Ice Sheet
         Theme_Keyword: Ice Sheet Elevation
         Theme_Keyword: Polar
         Theme_Keyword: Polar Stereographic
         Theme_Keyword: South Pole
      Place:
         Place_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
         Place_Keyword: Continent > Antarctica
   Platform_and_Instrument_Identification:
      Platform_Full_Name: Ice, Cloud and Land Elevation Satellite
      Platform_Short_Name: ICESAT
      Instrument_Full_Name: Geoscience Laser Altimeter System
      Instrument_Short_Name: GLAS

   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-0304

   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: Binary
         Digital_Transfer_Option:
            Online_Option:
               Computer_Contact_Information:
                  Network_Address:
                     Network_Resource_Name: ftp://sidads.colorado.edu/pub/DATASETS/DEM/nsidc0304_icesat_antarctic_dem
      Fees: None

Metadata_Reference_Information:
   Metadata_Date: 20131007

   Metadata_Review_Date: 20131007

   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