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Terrestrial polarization imagery obtained from the Space Shuttle - Characterization and interpretationAn experiment to measure the polarization of land, sea, haze, and cloud areas from space was carried aboard the Space Shuttle in September 1985. Digitized polarimetric and photometric imagery in mutually perpendicular planes was derived in the red, green, and blue spectral regions from photographs taken with two synchronized Hasselblad cameras using type 5036 Ektachrome film. Digitization at the NASA Houston Video Digital Analysis Systems Laboratory permitted reduction of the imagery into equipolarimetric contours with a relative accuracy of + or - 20 percent for comparison to ground truth. The Island of Hawaii and adjacent sea and cloud areas were the objects of the specific imagery analyzed. Results show that cloud development is uniquely characterized using percent polarization without requiring precision photometric calibration. Furthermore, sea state and wind direction over the sea could be inferred as well as terrestrial soil texture.
Document ID
19910041923
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Egan, Walter G.
(York College Queens, NY, United States)
Johnson, W. R.
(Lockheed Engineering and Sciences Co. Houston, TX, United States)
Whitehead, V. S.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 14, 2013
Publication Date
February 1, 1991
Publication Information
Publication: Applied Optics
Volume: 30
ISSN: 0003-6935
Subject Category
Earth Resources And Remote Sensing
Accession Number
91A26546
Funding Number(s)
CONTRACT_GRANT: NAS9-17900
Distribution Limits
Public
Copyright
Other

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