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Comparison of measurements and theory for backscatter from bare and snow-covered saline iceC-band radar backscatter measurements were made on artificially grown sea ice during the winters of 1987-1988 and 1988-1989. These measurements were made on smooth, rough, and snow-covered saline ice. The measured sigma-deg(theta) of smooth saline ice (rms height less than 0.05 cm) disagreed with small perturbation method (SPM) surface scattering predictions. Using physical parameters of the ice in a simple layer model, it us shown that this discrepancy can be explained by scattering from beneath the surface. A thin (7-cm) dry snow cover had a significant influence on backscatter from the smooth ice sheet. This influence was due to scattering from particles within the snow, and can be predicted by a commonly used empirical layer model for snow. The results of backscatter measurements of a moderately rough saline ice sheet were found to agree with SPM predictions.
Document ID
19900062602
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bredow, Jonathan W.
(Texas, University Arlington, United States)
Gogineni, Sivaprasad
(Kansas, University Lawrence, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1990
Publication Information
Publication: Vancouver, Canada, July 10-14, 1989) IEEE Transactions on Geoscience and Remote Sensing
ISSN: 0196-2892
Subject Category
Oceanography
Accession Number
90A49657
Funding Number(s)
CONTRACT_GRANT: N00014-89-J-1456
Distribution Limits
Public
Copyright
Other

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