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A comparison of Stokes parameters for sky and a soybean canopyAn evaluation of the polarization signatures obtained from the four Stokes parameters is reported for the atmosphere and a soybean canopy. The polarimeter design and operation are set forth, and the Stokes parameters' relationships are discussed. The canopy polarization was different from the sky at azimuths of 90 and 270 degrees, demonstrating a response that reflecting the sky polarization signatures across a plane parallel to the polarization axis and passing through a phase angle of about 90 degrees would produce. Classical behavior in terms of electromagnetic theory was found in the fourth Stokes parameter of the canopy which was obtained in the principal plane. Only the third Stokes parameter is demonstrated to be unambiguously affected in a comparison of sky polarization signatures and aerosol optical densities. The similarity between the sky at azimuth 180 degrees and the soybean canopy data at the principal plane is interesting considering the disparity of the subjects.
Document ID
19910053645
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Schutt, John B.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Holben, Brent N.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mcmurtrey, James E., III
(USDA, Beltsville Agricultural Research Center MD, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1991
Publication Information
Publication: International Journal of Remote Sensing
Volume: 12
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
91A38268
Distribution Limits
Public
Copyright
Other

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