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Scattering from a random layer of leaves in the physical optics limitBackscatter of electromagnetic radiation from a layer of vegetation over flat lossy ground has been studied in collaborative research at the George Washingnton University and the Goddard Space Flight Center. In this work the vegetation is composed of leaves which are modeled by a random collection of lossy dielectric disks. Backscattering coefficients for the vegetation layer have been calculated in the case of disks whose diameter is large compared to wavelength. These backscattering coefficients are obtained in terms of the scattering amplitude of an individual disk by employing the distorted Born procedure. The scattering amplitude for a disk which is large compared to wavelength is then found by physical optic techniques. Computed results are interpreted in terms of dominant reflected and transmitted contributions from the disks and ground.
Document ID
19830064966
Document Type
Conference Paper
Authors
Lang, R. H. (George Washington University Washington, DC, United States)
Seker, S. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Le Vine, D. M. (George Washington Univ. Washington, DC, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
EARTH RESOURCES AND REMOTE SENSING
Meeting Information
1982 International Geoscience and Remote Sensing Symposium(Munich)
Funding Number(s)
CONTRACT_GRANT: NAG5-83
Distribution Limits
Public
Copyright
Other