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Surface topography of the Greenland Ice Sheet from satellite radar altimetrySurface elevation maps of the southern half of the Greenland subcontinent are produced from radar altimeter data acquired by the Seasat satellite. A summary of the processing procedure and examples of return waveform data are given. The elevation data are used to generate a regular grid which is then computer contoured to provide an elevation contour map. Ancillary maps show the statistical quality of the elevation data and various characteristics of the surface. The elevation map is used to define ice flow directions and delineate the major drainage basins. Regular maps of the Jakobshavns Glacier drainage basin and the ice divide in the vicinity of Crete Station are presented. Altimeter derived elevations are compared with elevations measured both by satellite geoceivers and optical surveying.
Document ID
19900013534
Document Type
Special Publication (SP)
Authors
Bindschadler, Robert A. (NASA Goddard Space Flight Center Greenbelt, MD., United States)
Zwally, H. Jay (NASA Goddard Space Flight Center Greenbelt, MD., United States)
Major, Judith A. (ST Systems Corp. Greenbelt, MD., United States)
Brenner, Anita C. (ST Systems Corp. Greenbelt, MD., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1989
Subject Category
GEOPHYSICS
Report/Patent Number
NAS 1.21:503
REPT-89B00170
LC-89-600282
NASA-SP-503
Funding Number(s)
PROJECT: RTOP 161-40-21
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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NameType 19900013534.pdf STI