Airborne Laser Altimetry of the Thwaites Glacier Catchment, West Antarctica
Entry ID: NSIDC-0334

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Summary
Abstract: 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.
Related URL
Description: FTP site for obtaining these data.
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Geographic Coverage
Spatial coordinates   
  N: -75.0   S: -80.0   E: -95.0   W: -130.0

Data Set Citation
Dataset Originator/Creator: Duncan Young
Dataset Title: Airborne Laser Altimetry of the Thwaites Glacier Catchment, West Antarctica
Dataset Release Date: 2008-01-01
Dataset Release Place: Boulder, Colorado, USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Online Resource: http://nsidc.org/data/nsidc-0334.html
Temporal Coverage
Start Date: 2004-12-10
Stop Date: 2005-01-29
Quality The Quality flag (either 'PRIMARY' or 'SECONDARY') indicates whether the (root mean square)RMS crossovers values of the data was low enough to allow it to influence other data during leveling, or whether it should attempt to level to other data.
Use Constraints If these data are used in a publication, they should be cited using the following reference: Young, D. A., S. D. Kempf, D. D. Blankenship, J. W. Holt, and D. L. Morse (in press), New airborne laser altimetry over the Thwaites Glacier Catchment, West Antarctica , Geochemistry, Geophysics, Geosystems, doi:10.1029/2007GC001935

To help us serve the scientific and cryospheric research communities, please acknowledge NSIDC: Data provided by the National Snow and Ice Data Center DAAC, University of Colorado, Boulder, CO.'
Data Set Progress
COMPLETE
Data Center
National Snow and Ice Data Center Supplemental Info
Data Center URL: http://nsidc.org

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
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Distribution
Distribution Media: FTP
Distribution Size: 161 MB
Distribution Format: ASCII text
Personnel
Role: INVESTIGATOR
Contact Address:
J.J. Pickle Research Campus
Bldg. 196
10100 Burnet Road (R2200)
City: Austin
Province or State: Texas
Postal Code: 78758-4445
Country: USA
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Publications/References
Holt, J. W., D. D. Blankenship, D. L. Morse, D. A. Young, M. E. Peters, S. D. Kempf, T. G. Richter, D. G. Vaughan, and H. Corr (2006), New boundary conditions for the West Antarctic ice sheet: Subglacial topography of the Thwaites and Smith Glacier catchments, Geophysical Research Letters, 33(L09502), 10.1029/2005GL025561.

Blankenship, D. D., D. Morse, C. A. Finn, R. E. Bell, M. E. ... View entire text
Creation and Review Dates
DIF Creation Date: 2008-04-04
Last DIF Revision Date: 2010-05-14
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