Identification_Information:
   Dataset_Identifier: NSIDC-0517

   Citation: 
      Citation_Information: 
         Originator: Blankenship, D. D., D. A. Young, J. W. Holt, and S. D. Kempf. 
         Publication_Date: 20120503
         Title: AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica
         Publication_Information: 
            Publication_Place: Boulder, Colorado USA
            Publisher: NSIDC: National Snow and Ice Data Center
         Online_Linkage: http://nsidc.org/data/nsidc-0517.html
         Online_Linkage: http://dx.doi.org/10.7265/N5W95730

   Description: 
      Abstract:
         This data set contains line-based radar-derived ice thickness and bed 
         elevation data, collected as part of the Airborne Geophysical Survey of the 
         Amundsen Embayment (AGASEA) expedition, which took place over Thwaites Glacier 
         in West Antarctica from 2004 to 2005. The data set includes ice thickness, ice 
         sheet bed elevation, and ice sheet surface elevation, derived from 
         ice-penetrating radar and aircraft GPS positions. The data are spaced on a 15 
         km by 15 km grid over the entire catchment of the glacier, and sampled at 
         approximately 15 meters along track. Most of the radar data used for this 
         dataset has been processed using a 1-D focusing algorithm, to reduce the along 
         track resolution to tens of meters, to improve boundary conditions for ice 
         sheet models. 

         Data are available via FTP in space-delimited ASCII format.

      Purpose: scientific research
      Documentation: 
         User's_Guide: 
            Citation_Information: 
               Originator: Blankenship, D. D., D. A. Young, J. W. Holt, and S. D. Kempf. 
               Publication_Date: 20120503
               Title: AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica
               Publication_Information: 
                  Publication_Place: Boulder, Colorado USA
                  Publisher: NSIDC: National Snow and Ice Data Center
               Online_Linkage: http://nsidc.org/data/docs/agdc/nsidc0517-blankenship/index.html

   Time_Period_of_Content:
      Time_Period_Information:
         Range_of_Dates/Times:
            Beginning_Date: 20041210
            Ending_Date: 20050129
      Currentness_Reference: publication date

   Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: Unknown

   Spatial_Domain:
      Bounding_Coordinates:
         West_Bounding_Coordinate: -125
         East_Bounding_Coordinate: -90
         North_Bounding_Coordinate: -73
         South_Bounding_Coordinate: -83

   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 > Cryosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography
         Theme_Keyword: EARTH SCIENCE > Cryosphere > 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: GPS > Global Positioning System
         Theme_Keyword: MAGNETOMETERS
         Theme_Keyword: RADAR > Radio Detection and Ranging
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
         Theme_Keyword: AIRCRAFT
         Theme_Keyword: DHC-6 > DeHavilland Twin Otter
      Theme:
         Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
         Theme_Keyword: climatologyMeteorologyAtmosphere
      Theme:
         Theme_Keyword_Thesaurus: None
         Theme_Keyword: Airborne geophysical survey of the Amundsen Sea Embayment, Antarctica (AGASEA)
         Theme_Keyword: Airborne Radar Sounding
         Theme_Keyword: Antarctic Ice Sheet
         Theme_Keyword: Glacier
         Theme_Keyword: glaciers
         Theme_Keyword: GPS
         Theme_Keyword: Ice Penetrating Radar
         Theme_Keyword: Ice Sheet
         Theme_Keyword: Ice Sheet Thickness
         Theme_Keyword: Model Input Data
         Theme_Keyword: Thwaites Glacier
      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-0517

   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/nsidc0517_blankenship_V01/
      Fees: None

Metadata_Reference_Information:
   Metadata_Date: 20140428

   Metadata_Review_Date: 20140428

   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