Sea Ice Displacement from SEASAT Synthetic Aperture Radar

Images obtained by a synthetic aperture radar on SEASAT have been used to measure sea ice displacements over a three day interval in October 1978. The data points lie roughly along a line and are quite dense--about 2 km apart--over a distance of 863 km. The displacements are about twenty kilometers....

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Bibliographic Details
Main Authors: Hall,R T, Rothrock,D A
Other Authors: WASHINGTON UNIV SEATTLE POLAR SCIENCE CENTER
Format: Text
Language:English
Published: 1981
Subjects:
Snow
Ice and Permafrost
Active & Passive Radar Detection & Equipment
Unmanned Spacecraft
*SYNTHETIC APERTURE RADAR
*SEA ICE
*SCIENTIFIC SATELLITES
DATA BASES
EXPERIMENTAL DATA
DISPLACEMENT
GRAPHS
ERRORS
DAY
DISCONTINUITIES
INTERVALS
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA096485
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA096485
Description
Summary:Images obtained by a synthetic aperture radar on SEASAT have been used to measure sea ice displacements over a three day interval in October 1978. The data points lie roughly along a line and are quite dense--about 2 km apart--over a distance of 863 km. The displacements are about twenty kilometers. Displacement errors grow with distance from shore becoming as large as 3 km. The graph of displacement versus distance has occasional discontinuities of several kilometers. Displacement discontinuities are accurate to + or - 0.07 km along track and 3% of their magnitude across track.

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