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.

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Geographic Coverage

Data Set Tabs

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

Spatial Resolution:
Not specified
Temporal Coverage 2004-12-10 to 2005-01-29
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
Data Format(s):
  • ASCII Text (.txt)
Data Contributor(s): Donald Blankenship, Duncan Young, John Holt, Scott Kempf

We kindly request that you cite the use of this data set in a publication using the following citation. For more information, see Use and Copyright.

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.

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Contact Address:
National Snow and Ice Data Center
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Province or State: CO
Postal Code: 80309-0449
Country: USA