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Santa Barbara microwave backscattering model for woodlandsThe Santa Barbara microwave backscattering model for woodland vegetation with discontinuous tree canopies is described, with an emphasis on the construction of the model from probability-weighted sub-components. The modelling approach is to treat individual tree crowns as scatterers and attenuators, using the probabilities of scattering and attenuation to compute total backscatter. Four major model components are defined: surface backscattering, crown volume scattering, multi-path interactions between crown and ground, and double-bounce trunk-ground interactions. Each component is divided into subcomponents having distinct scattering and attenuation paths. The scattering of each subcomponent is computed and weighted by the probability of its occurrence. Total backscatter from a simulated woodland stand is computed by incoherent summation of the components. Recent revisions to the model have modified the subcomponent definitions and improved the probability formulation.
Document ID
19930068291
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wang, Y.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Day, J.
(California Univ. Santa Barbara, United States)
Sun, G.
(Ressler Associates, Inc. Laurel, MD, United States)
Date Acquired
August 16, 2013
Publication Date
May 20, 1993
Publication Information
Publication: International Journal of Remote Sensing
Volume: 14
Issue: 8
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A52288
Funding Number(s)
CONTRACT_GRANT: JPL-958915
CONTRACT_GRANT: JPL-958468
Distribution Limits
Public
Copyright
Other

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