A Digital Elevation Model (DEM), ice thickness grid, and bedrock elevation grid of Greenland, acquired as part of the PARCA program, are available in ASCII text format at a 5 km grid spacing in a polar stereographic projection. DEM data are a combination of ERS-1 and Geosat satellite radar altimetry data, Airborne Topographic Mapper (ATM) data, and photogrammetric digital height data. Ice thickness data are based on approximately 700,000 data points collected in the 1990s from a University of Kansas airborne Ice Penetrating Radar (IPR). Nearly 30,000 data points were collected in the 1970s from a Technical University of Denmark (TUD) airborne echo sounder.The ice thickness grid was subtracted from the DEM to produce a grid of bedrock elevation values. Data set applications include studies of gravitational driving stress and ice volume (mass balance) of the Greenland Ice Sheet.
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Spatial Extent: | Bounding Rectangle: N: 84.0 S: 60.0 E: -15.0 W: -72.0 |
Data Format(s): | Distribution: ASCII Text |
Temporal Extent: | Platform(s): | AIRCRAFT, GEOSAT | |
Data Center(s): | NASA NSIDC DAAC | Instrument(s): | ALTIMETERS, ATM, RA, RADAR ALTIMETERS, RADAR ECHO SOUNDERS |
Version: | 1 |
10.5067/01A10Z9BM7KP
Level 3
Geophysical variables mapped on a grid
Complete
Coverage Type | Zone Identifier | Geometry | Granule Representation |
---|---|---|---|
HORIZONTAL | CARTESIAN | GEODETIC |
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder,
CO
80309-0449
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder,
CO
80309-0449
Bristol Glaciology Centre
School of Geographical Sciences
University Road
CIRES, 449 UCB
University of Colorado
Boulder,
CO
80309-0449
Bristol Glaciology Centre
School of Geographical Sciences
University Road
Boulder, Colorado
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Format: ASCII Text
Format Type: Native
Format Description: FTP 4.5 MB