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Record 1 of 5634
Correlation of microwave sensor returns with soil moisture
Author and Affiliation:
Taube, D. W.(Coast Guard, Washington, DC, United States)
Theis, S. W.(Technology Service Corp., Silver Spring, Md., United States)
Abstract: Microwave sensor soil data were collected by aircraft over agricultural croplands. Multiple incident angle scatterometer data (13.3, 4.75, 1.6 and 0.4 GHz), passive radiometer data (L and C-band), and soil moisture ground truth measurements were collected coincidentally. Each sensor and angle of incidence was linearly analyzed against the measured soil moisture. For bare agricultural soils, the optimal single sensor for soil moisture preduction is the L-band passive radiometer. The effects of vegetation and differing surface roughness prove significant. When both bare and vegetated surfaces were studied, the masking due to the vegetation renders the single sensor approach ineffective in soil moisture prediction. Multisensor techniques are necessary to remotely measure soil moisture when a priori knowledge of vegetation is not available.
Publication Date: Aug 01, 1984
Document ID:
19840025826
(Acquired Nov 13, 1995)
Accession Number: 84N33897
Subject Category: EARTH RESOURCES AND REMOTE SENSING
Document Type: Conference Paper
Publication Information: ESA IGARSS 84. Remote Sensing: From Res. Towards Operational Use, Vol. 1; p 251-256
Publisher Information: International Organization
Contract/Grant/Task Num: MO-A01-004332; NSG-5134
Financial Sponsor: NASA; International Organization
Organization Source: Coast Guard; Office of Research and Development.; Washington, DC, United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: MICROWAVE SCATTERING; MOISTURE CONTENT; SCATTEROMETERS; SOILS; GROUND TRUTH; PASSIVE L-BAND RADIOMETERS; SURFACE ROUGHNESS EFFECTS; VEGETATION GROWTH
Imprint And Other Notes: In ESA IGARSS 84. Remote Sensing: From Res. Towards Operational Use, Vol. 1 p 251-256 (SEE N84-33857 23-43)
Miscellaneous Notes: Sponsored by US Geological Service and USDA
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