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Data Set ID:

AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica, Version 1

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.

Geographic Coverage

Spatial Coverage:
  • N: -73, S: -83, E: -90, W: -125

Spatial Resolution: Not Specified
Temporal Coverage:
  • 10 December 2004 to 29 January 2005
Temporal Resolution: Not specified
  • Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
  • Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography
  • Glaciers/Ice Sheets > Ice Sheets
Platform(s) AIRCRAFT, DHC-6
Data Format(s):
  • ASCII Text
Version: V1
Data Contributor(s): Donald Blankenship, Duncan Young, John Holt, Scott Kempf

Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Blankenship, D. D., D. A. Young, J. W. Holt, and S. D. Kempf. 2012. AGASEA Ice Thickness Profile Data from the Amundsen Sea Embayment, Antarctica, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: [Date Accessed].
No technical references available for this data set.