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Modeling the Effect of Vegetation on Passive Microwave Remote Sensing of Soil MoistureThe effect of vegetation on passive microwave remote sensing of soil moisture is studied. The radiative transfer modeling work of Njoku and Kong is applied to a stratified medium of which the upper layer is treated as a layer of vegetation. An effective dielectric constant for this vegetation layer is computed using estimates of the dielectric constant of individual components of the vegetation layer. The horizontally-polarized brightness temperature is then computed as a function of the incidence angle. Model predictions are used to compare with the data obtained in the Huntsville '96, remote sensing of soil moisture experiment, and with predictions obtained using a correction procedure of Jackson and Schmugge.
Document ID
20000032191
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Liu, Y. P.
(Alabama A & M Univ. Normal, AL United States)
Inguva, R.
(Wyoming Univ. Laramie, WY United States)
Crosson, W. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Coleman, T. L.
(Alabama A & M Univ. Normal, AL United States)
Laymon, C.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Fahsi, A.
(Alabama A & M Univ. Normal, AL United States)
Date Acquired
August 19, 2013
Publication Date
February 22, 1998
Publication Information
Publication: NASA University Research Centers Technical Advances in Aeronautics, Space Sciences and Technology, Earth Systems Sciences, Global Hydrology, and Education
Volume: s 2 and 3
Subject Category
Earth Resources And Remote Sensing
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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