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Microwave backscattering from an anisotropic soybean canopyElectromagnetic backscattering from a soybean canopy is modeled in the L band region of the spectrum. Mature soybean plants are taken as an ensemble of leaves and stems which are represented by lossy dielectric disks and rods respectively. Field data indicated that leaves and stems are not distributed uniformly in the azimuth coordinate. The plant has a tendency to grow out into the area between the rows. The effects on backscattered radar waves was computed by the distorted Born approximation. Results for look directions along the rows and perpendicular to the rows show that only a modest difference occurs in the L band frequency range. The use of another nonuniform distribution, different from those observed experimentally, results in a significant effect due to vegetation asymmetry.
Document ID
19870007913
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lang, R. H.
(George Washington Univ. Washington, D.C., United States)
Saatchi, S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Levine, D. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 5, 2013
Publication Date
August 1, 1986
Publication Information
Publication: ESA Proceedings of the 1986 International Geoscience and Remote Sensing Symposium (IGARSS '86) on Remote Sensing: Today's Solutions for Tomorrow's Information Needs, Volume 2
Subject Category
Communications And Radar
Accession Number
87N17346
Distribution Limits
Public
Copyright
Other

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