GLAS/ICESat 500 m Laser Altimetry Digital Elevation Model of Antarctica
Entry ID: NSIDC-0304

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Abstract: The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and land Elevation Satellite (ICESat) provides global measurements of elevation, and repeats measurements along nearly-identical tracks; its primary mission is to measure changes in ice volume (mass balance) over time. This digital elevation model (DEM) of Antarctica is derived from GLAS/ICESat laser altimetry profile data ... View entire text
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Geographic Coverage
Spatial coordinates   
  N: -63.0   S: -86.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: John P. DiMarzio
Dataset Title: GLAS/ICESat 500 m Laser Altimetry Digital Elevation Model of Antarctica
Dataset Release Date: 2007-06-22
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Data Presentation Form: Digital media
Online Resource:
Temporal Coverage
Start Date: 2003-02-01
Stop Date: 2005-06-30
Data Resolution
Latitude Resolution: 500 m
Longitude Resolution: 500 m
Horizontal Resolution Range: 500 meters - < 1 km
ISO Topic Category
Quality Slope and elevation accuracy of the DEMs is best near the latitudinal limit of satellite coverage (±86∞), and provides a good representation of the ice sheet and mountain areas (based on comparison with satellite images). DEM accuracy decreases as track spacing between ICESat profiles increases equatorward.
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Data Set Progress
Data Center
NSIDC Distributed Active Archive Center Supplemental Info
Data Center URL:
Dataset ID: NSIDC-0304

Data Center Personnel
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
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Distribution Media: FTP
Distribution Size: 433,997,915 bytes compressed
Distribution Format: binary
Phone: 301-614-5893
Email: john.dimarzio at
Contact Address:
SGT, Inc.
NASA/Goddard Space Flight Center
Cryospheric Sciences Branch Code 614.1
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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Abshire, J., and 8 others. 2005. Geoscience Laser Altimeter System (GLAS) on the ICESat mission: on-orbit measurement performance. Geophysical Research Letters v. 32, L21S02, doi:10.1029/2005GL1024028.

Brenner, A., and 11 others. 2003. Derivation of range and range distributions from laser pulse waveform analysis for surface elevations, roughness, slope, and vegetations ... View entire text
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Creation and Review Dates
DIF Creation Date: 2007-06-18
Last DIF Revision Date: 2010-03-09
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