Airborne Laser Altimetry of the Thwaites Glacier Catchment, West Antarctica

Data Contributors YOUNG, DUNCAN A. KEMPF, SCOTT D. BLANKENSHIP, DONALD D. HOLT, JOHN W. MORSE, DAVID L. Parameters GLACIERS/ICE SHEETS GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION GLACIERS/ICE SHEETS > GLACIER TOPOGRAPHY/ICE SHEET TOPOGRAPHY GLACIERS/ICE SHEETS > ICE SHEETS SNOW/ICE Instruments ALTIMETERS GPS : GLOBAL POSITIONING SYSTEM INS : INERTIAL NAVIGATION SYSTEM

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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.

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Data Citation

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Duncan Young. 2008. Airborne Laser Altimetry of the Thwaites Glacier Catchment, West Antarctica. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5HD7SK8.

See Also

• Antarctic Glaciological Data Center (AGDC) home page.
• University of Texas, Institute for Geophysics (UTIG) Web site
• AGDC Web Site
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