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Antarctic 5-km Digital Elevation Model from ERS-1 Altimetry
Entry ID:
NSIDC-0076
Summary
Abstract:
This data set provides a digital elevation model (DEM) for Antarctica to 81.5 degrees south latitude, at a resolution of 5 km. Approximately twenty million data points were used to generate this data set. Data points were derived from ERS-1 radar altimetry during the geodetic phase from March 1994 to May 1995. The improved density in coverage and resolution, compared with past satellite altimetry ...
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Geographic Coverage
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Spatial coordinates
Data Set Citation
Dataset Originator/Creator:
Jonathan Bamber
Dataset Title:
Antarctic 5-km Digital Elevation Model from ERS-1 Altimetry
Dataset Release Date:
2000-01-01
Dataset Release Place:
Boulder, CO U.S.A.
Dataset Publisher:
National Snow and Ice Data Center (NSIDC)
Online Resource:
http://nsidc.org/data/nsidc-0076.html
Temporal Coverage
Start Date:
1994-03-01
Stop Date:
1995-05-31
Location Keywords
Data Resolution
Temporal Resolution:
Daily
Temporal Resolution Range: Daily - < Weekly Science Keywords
ISO Topic Category
Instrument
Project
Quality
Various methods were applied to improve the accuracy of elevation estimates over the Antarctic 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.
Data Set Progress
COMPLETE
Data Center
Distribution
Distribution Media:
FTP
Distribution Size:
39.6 MB uncompressed
Distribution Format:
ASCII
Personnel
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
Publications/References
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 comparison 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.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date:
2000-05-10
Last DIF Revision Date:
2011-07-25
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- Responsible NASA Official: Lola Olsen
- Last updated: May 2013
