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Multi-polarization C-band SAR for soil moisture estimationPrevious studies of synthetic aperture radar (SAR) imagery have shown qualitative relationships between radar backscatter and soil moisture. However, to be able to use these data in operational programs it will be necessary to establish quantitatively how the radar return is related to soil moisture and the effects of surface roughness, soil type, and vegetation cover and growth stage, as a function of frequency and polarization. To this end, a multi-year experiment began in 1990 as a cooperative venture amongst the Canada Center (Agriculture Canada), and the Universities of Guelph, Sherbrooke, Laval, and Waterloo. During 1990, SAR imagery was acquired during two periods (May and Jun.) to correspond to times of minimal and substantial vegetation cover. SAR data were acquired on three days in May and on four days in Jul. to cover different soil moisture conditions. This unique comprehensive data set is used to investigate the relationships between soil moisture and radar backscatter. The experiment and data collected are described, and a preliminary qualitative interpretation of the relationship between soil moisture and image tone is provided.
Document ID
19920018776
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Brown, R. J.
(Canada Centre for Remote Sensing Toronto (Ontario)., United States)
Brisco, B.
(INTERA Technologies Ltd. Nepean, Ontario , Canada)
Date Acquired
September 6, 2013
Publication Date
August 1, 1991
Publication Information
Publication: JPL, Proceedings of the Third Airborne Synthetic Aperture Radar (AIRSAR) Workshop
Subject Category
Earth Resources And Remote Sensing
Accession Number
92N28019
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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