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Clear water radiances for atmospheric correction of coastal zone color scanner imageryThe possibility of computing the inherent sea surface radiance for regions of clear water from coastal zone color scanner (CZCS) imagery given only a knowledge of the local solar zenith angle is examined. The inherent sea surface radiance is related to the upwelling and downwelling irradiances just beneath the sea surface, and an expression is obtained for a normalized inherent sea surface radiance which is nearly independent of solar zenith angle for low phytoplankton pigment concentrations. An analysis of a data base consisting of vertical profiles of upwelled spectral radiance and pigment concentration, which was used in the development of the CZCS program, confirms the virtual constancy of the normalized inherent sea surface radiance at wavelengths of 520 and 550 nm for cases when the pigment concentration is less than 0.25 mg/cu m. A strategy is then developed for using the normalized inherent sea surface radiance in the atmospheric correction of CZCS imagery.
Document ID
19820033757
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gordon, H. R.
(Miami, University Coral Gables, FL, United States)
Clark, D. K.
(NOAA, National Earth Satellite Service, Washington DC, United States)
Date Acquired
August 10, 2013
Publication Date
December 15, 1981
Publication Information
Publication: Applied Optics
Volume: 20
Subject Category
Earth Resources And Remote Sensing
Accession Number
82A17292
Funding Number(s)
CONTRACT_GRANT: NOAA-NA-79SA00741
CONTRACT_GRANT: NAS5-22963
Distribution Limits
Public
Copyright
Other

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