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C-band measurements of radar backscatter from ice project summary reportThe ability to measure the radar scattering coefficient of ice with a helicopter or surface spectrometer was extended into the 4-8 GHz spectral region. The scattering coefficient was measured at Mould Bay, N.W.T., over a frequency range from 4 to 18 GHz for both summer and fall conditions. Scatter from fresh water ice in the St. Lawrence River and from numerous seasonal sea-ice types along the coast of Newfoundland were also measured. The C-band (near 5 GHz) scattering cross section for different types of ice shows poorer contrast than the scattering coefficient at higher frequencies, but better contrast than the negligible value found at L-band (1.5 GHz). At frequencies above 4 GHz the contrast in scattering coefficient between the different ice types is much less in summer than in other seasons; at most times of year the scattering is much stronger from multiyear than from other ice types, but in early summer it is actually slightly weaker than that from first year ice.
Document ID
19830015390
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Onstott, R. G. (Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Moore, R. K. (Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Date Acquired
September 4, 2013
Publication Date
May 1, 1983
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
RSL-TR-524
NAS 1.26:170302
NASA-CR-170302
Accession Number
83N23661
Funding Number(s)
CONTRACT_GRANT: NCC1-51
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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