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Data Set ID:

Airborne Laser Altimetry of the Thwaites Glacier Catchment, West Antarctica, Version 1

This data set includes airborne altimetry collected over the catchment and main trunk of Thwaites Glacier, one of Antarctica's most active ice streams. The airborne altimetry comprises 35,000 line-kilometers sampled at 20 meters along track. The full dataset has an internal error of ±20 cm; a primary subset has an error of ±8 cm. We find a +20 cm bias with Geoscience Laser Altimeter System data over a flat interior region. These data will serve as an additional temporal reference for the evolution of Thwaites Glacier surface, as well as aid the construction of future high resolution Digital Elevation Models (DEM). Line data are available in space-delimited ASCII format and are available via FTP.

Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: -75, S: -80, E: -95, W: -130

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
  • Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography
  • Glaciers/Ice Sheets > Ice Sheets
  • Snow/Ice
Data Format(s):
  • ASCII Text (.txt)
Data Contributor(s): Duncan Young, Scott Kempf, Donald Blankenship, John Holt, David Morse

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.

Young, D. A., S. D. Kempf, D. D. Blankenship, J. W. Holt, and D. L. Morse. 2008. Airborne Laser Altimetry of the Thwaites Glacier Catchment, West Antarctica, Version 1. [indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].

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Contact Address:
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Province or State: CO
Postal Code: 80309-0449
Country: USA