Radarsat Antarctic Mapping Project Digital Elevation Model Version 2
Entry ID:
NSIDC-0082
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Summary
Abstract:
The high-resolution Radarsat Antarctic Mapping Project (RAMP) Digital Elevation Model (DEM) combines topographic data from a variety of sources to provide consistent coverage of all of Antarctica. Version 2 improves upon the original version by incorporating new topographic data, error corrections, extended coverage, and other modifications. The DEM incorporates topographic data from satellite ... radar altimetry, airborne radar surveys, the recently-updated Antarctic Digital Database (version 2), and large-scale topographic maps from the U.S. Geological Survey (USGS) and the Australian Antarctic Division. Data were collected between the 1940s and present, with most collected during the 1980s and 1990s. Although the RAMP DEM was created to aid in processing RAMP radar data, it does not utilize any RAMP radar data. The 1 km, 400 m, and 200 m DEM data are provided in ARC/INFO and binary grid formats, and the 1 km and 400 m DEMs are also available in ASCII format. Data access is unrestricted, but users should register to receive e-mail notification of product updates and changes in processing. 
Related URL
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Description:
FTP site for obtaining these data.
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: -60.0
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S: -90.0
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E: 180.0
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W: -180.0
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Data Set Citation
Dataset Originator/Creator:
H. Liu, K. Jezek, B. Li, and Z. Zhao
Dataset Title:
Radarsat Antarctic Mapping Project Digital Elevation Model Version 2
Dataset Release Date:
2001-10-01
Dataset Release Place:
Boulder, CO
Dataset Publisher:
National Snow and Ice Data Center (NSIDC)
Online Resource:
http://nsidc.org/data/nsidc-0082.html
Temporal Coverage
Start Date:
1940-01-01
Stop Date:
1999-01-01
Quality
The vertical accuracy of the DEM is estimated at about 100-130 m over the rugged mountainous areas, better than 2 m for the ice shelves, better than 15m for the interior ice sheet and about 35 m for the steeper ice sheet perimeter.
Data Set Progress
COMPLETE
Distribution
Distribution Media:
ftp
Distribution Size:
114 MB uncompressed
Distribution Format:
ARC/INFO (400 meter resolution)
Distribution Media:
ftp
Distribution Size:
1410 MB uncompressed
Distribution Format:
binary (200 meter resolution)
Distribution Media:
ftp
Distribution Size:
25 MB uncompressed
Distribution Format:
ARC/INFO (1 kilometer resolution)
Distribution Media:
ftp
Distribution Size:
2649 MB uncompressed
Distribution Format:
ASCII text file (400 meter resolution)
Distribution Media:
ftp
Distribution Size:
330 MB uncompressed
Distribution Format:
ARC/INFO (200 meter resolution)
Distribution Media:
ftp
Distribution Size:
352 MB uncompressed
Distribution Format:
binary (400 meter resolution)
Distribution Media:
ftp
Distribution Size:
424 MB uncompressed
Distribution Format:
ASCII text file (1 kilometer resolution)
Distribution Media:
ftp
Distribution Size:
56 MB uncompressed
Distribution Format:
binary (1 kilometer resolution)
Personnel
Role:
INVESTIGATOR
Contact Address:
Department of Geography
Texas A&M University
City:
College Station
Province or State:
TX
Country:
USA
Role:
INVESTIGATOR
Phone:
614-292-7973
Fax:
614-292-4697
Email:
jezek at iceberg.mps.ohio-state.edu
Contact Address:
Department of Geological Sciences and Byrd Polar Research Center
The Ohio State University
City:
Columbus
Province or State:
OH
Postal Code:
43210
Country:
USA
Role:
INVESTIGATOR
Contact Address:
The Byrd Polar Research Center
The Ohio State University
City:
Columbus
Province or State:
OH
Country:
USA
Role:
INVESTIGATOR
Contact Address:
The Byrd Polar Research Center
The Ohio State University
City:
Columbus
Province or State:
OH
Country:
USA
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
Bliss, N.B., L.M. Olsen. 1996. Development of a 30-arc-second digital elevation model of South America. Paper presented at Pecora Thirteen Human Interactions with the Environment - Perspective from Space, Sioux Falls, South Dakota, August 20-22. 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. ESRI. 1991. ARC/INFO User's Guide: Cell-based modeling with GRID. ESRI Inc.
Gesch, D.B., K.S. Larson. 1996. Techniques for development of global 1-kilometer digital elevation models. Paper presented at Pecora Thirteen Human Interactions with the Environment - Perspective from Space, Sioux Falls, South Dakota, August 20-22.
Hutchinson, M.F. 1989. A new procedure for gridding elevation and stream line data with automatic removal of spurious pits. Journal of Hydrology 106:211-232.
Hutchinson, M.F. 1988. Calculation of hydrologically sound digital elevation models. In Proceedings of Third International Symposium on Spatial Data Handling: 117-133. Sydney, Australia.
Jezek, K.C., H. Liu, Z. Zhao, B. Li. Improving a digital elevation model of Antarctica using radar remote sensing data and GIS techniques. Polar Geography 23: 185-200.
Liu, H., K. Jezek, B. Li. 1999. Development of an Antarctic digital elevation model by integrating cartographic and remotely sensed data: A geographic information system based approach. Journal of Geophysical Research 104: 23,199-23,213.
Liu, H. 1999. Development of an Antarctic digital elevation model. Byrd Polar Research Center Report No. 19, 157 pp.
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.
Creation and Review Dates
DIF Creation Date:
1999-09-13
Last DIF Revision Date:
2012-05-14
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