GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland
Entry ID: NSIDC-0305

[ Update this Record ]

Summary
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 Greenland is derived from GLAS/ICESat laser altimetry profile data ... View entire text
Related URL
Description: ICESat/GLAS Data at NSIDC
View entire list
Geographic Coverage
Spatial coordinates   
  N: 83.0   S: 60.0   E: -11.0   W: -73.0

Data Set Citation
Dataset Originator/Creator: John P. DiMarzio
Dataset Title: GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland
Dataset Release Date: 2007-06-21
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/NSIDC-0305
Temporal Coverage
Start Date: 2003-02-01
Stop Date: 2005-06-30
Data Resolution
Latitude Resolution: 1 km
Longitude Resolution: 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. As a quality and accuracy indicator, the mean distance of all contributing GLAS surface spot data to the grid cell center was recorded in a separate identical grid for each ice sheet. These mean distance files are provided with the elevation data.
Data Set Progress
COMPLETE
Data Center
NSIDC Distributed Active Archive Center Supplemental Info
Data Center URL: http://nsidc.org/daac/index.html

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
View entire list
Distribution
Distribution Media: FTP
Distribution Size: 24 MB
Distribution Format: Binary
Personnel
Role: INVESTIGATOR
Phone: 301-614-5893
Email: john.dimarzio at gsfc.nasa.gov
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
View entire list
Publications/References
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 heights, Algorithm ... View entire text
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2007-06-21
Last DIF Revision Date: 2014-05-19
[ Update this Record ]


Link to Web Site