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Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids

Entry ID: NSIDC-0092

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Summary

Abstract: 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 ...

Related URL

Link: GET DATA

Description: FTP site for obtaining these data.

Geographic Coverage

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Spatial coordinates

N: 84.0

S: 60.0

E: -15.0

W: -72.0

Data Set Citation

Dataset Originator/Creator: J. Bamber

Dataset Title: Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids

Dataset Release Date: 2001-01-01

Dataset Release Place: Boulder, CO U.S.A.

Dataset Publisher: National Snow and Ice Data Center (NSIDC)

Online Resource: http://nsidc.org/data/nsidc-0092.html

Temporal Coverage

Start Date: 1970-01-01

Stop Date: 1970-12-01

Start Date: 1993-01-01

Stop Date: 1999-12-31

Location Keywords

CONTINENT > NORTH AMERICA > GREENLAND

GEOGRAPHIC REGION > ARCTIC

GEOGRAPHIC REGION > POLAR

Science Keywords

CRYOSPHERE > SNOW/ICE > ICE DEPTH/THICKNESS

CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS

ISO Topic Category

ELEVATION

GEOSCIENTIFIC INFORMATION

INLAND WATERS

Platform

Aircraft

DEM > Digital Elevation Model

Instrument

Altimeters

ATM > Airborne Topographic Mapper

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

PARCA > Program in Arctic Regional Climate Assessment

Quality Various methods were applied to improve the accuracy of elevation estimates over the Greenland ice sheet, including waveform tracking, slope correction, data filtering (tests for return-echo waveform shape, backscatter coefficient, and retracking correction values for each altimeter height estimate), and removal of anomalous orbits. Errors in the estimate of derived ice thickness measurements ...

Ancillary Keywords

Altimetry

Bedrock Elevation

Data Set Progress

COMPLETE

Data Center

NSIDC Distributed Active Archive Center

Data Center URL: http://nsidc.org/daac/index.html
Dataset ID: NSIDC-0092

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

National Snow and Ice Data Center

Data Center URL: http://nsidc.org
Dataset ID: NSIDC-0092

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

Distribution

Distribution Media: ftp

Distribution Size: Each of the three grids is 1.5 Mb.

Distribution Format: ASCII

Personnel

JONATHAN BAMBER

Role: INVESTIGATOR

Email: j.l.bamber at bristol.ac.uk

Contact Address:

Bristol Glaciology Centre

School of Geographical Sciences

University Road

City: Bristol

Postal Code: BS8 1SS

Country: United Kingdom

NSIDC USER SERVICES

Role: TECHNICAL CONTACT

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

Publications/References

Bamber, J.L., S. Ekholm, W.B. Krabill. 2000. A new, high-resolution digital elevation model of Greenland fully validated with airborne laser altimeter data. Journal of Geophysical Research. In press. Bamber, J.L., R.L. Layberry, S.P. Gogenini. 2000. A new ice thickness and bedrock dataset for the Greenland ice sheet: part I. Journal of Geophysical Research. In press. Bamber, J.L., Ekholm, ... S., and Krabill, W. B. 1998. The accuracy of satellite radar altimeter data over the Greenland ice sheet determined from airborne laser data, Geophysical Research Letters. 25(16): 3177-3180. Bamber, J.L. and R.A. Bindschadler. 1997. An improved elevation dataset for climate and ice-sheet modelling: validation with satellite imagery. Annals of Glaciology 25:438-444. Bamber, J.L. and P. Huybrechts. 1996. Geometric boundary conditions for modelling the velocity field of the Antarctic ice sheet. Annals of Glaciology 23:364-373. Bamber, J. and C. Bentley. 1994. A comp
arison of satellite-altimetry and ice thickness measurements of the Ross Ice Shelf, Antarctica. Annals of Glaciology 20:357-364. Bamber, J. 1994. A digital elevation model of the Antarctic ice sheet derived from ERS-1 altimeter data and comparison with terrestrial measurements. Annals of Glaciology 20:48-54. Bamber, J. 1994. Ice sheet altimeter processing scheme. International Journal of Remote Sensing 15:925-938. Bogorodskiy, V.V., C.R. Bentley, P.E. Gudmandsen. 1985. Radioglaciology. Dordrecht: D. Reidel Publishing Company. Brenner, A.C., R.A. Bindschadler, R.H. Thomas, H.J. Zwally. 1983. Slope-induced errors in radar altimetry over continental ice sheets. Journal of Geophysical Research 88:1617-1623. Davis C.H., H.J. Zwally. 1993. Geographic and seasonal variations in the surface properties of the ice sheets by satellite radar altimetry. Journal of Glaciology 39:687-697. Gogineni, S., D. Tammana, D. Braaten, C. Leuschen, T. Atkins, J. Legarsky, P. Kanagaratnam,
J. Stiles, C. Allen, and K. Jezek. 2000. Coherent radar ice thicknes
s measurements over the Greenland Ice Sheet. Journal of Geophysical Research. In press. Hodge, S.M., D.L. Wright, J.A. Bradley, R. W. Jacobel, N. Skou, and B. Vaughn. 1990. Determination of the surface and bed topography in central Greenland. Journal of Glaciology 36(122):17-30. Weng, W.L. 1995. Untitled. Arctic 48(2):206. Zwally, H.J., R.A. Bindschadler, A.C. Brenner, T.V. Martin, R.H. Thomas. 1983. Surface elevation contours of Greenland and Antarctic ice sheets. Journal of Geophysical Research 88(C3):1589-1596.

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2001-02-22

Last DIF Revision Date: 2011-07-28

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