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Reflectance model for quantifying chlorophyll a in the presence of productivity degradation productsA reflectance model developed to estimate chlorophyll a concentrations in the presence of marine colored dissolved organic matter, pheopigments, detritus, and bacteria is presented. Nomograms and lookup tables are generated to describe the effects of different mixtures of chlorophyll a and these degradation products on the R(412):R(443) and R(443):R(565) remote-sensing reflectance or irradiance reflectance ratios. These are used to simulate the accuracy of potential ocean color satellite algorithms, assuming that atmospheric effects have been removed. For the California Current upwelling and offshore regions, with chlorophyll a not greater than 1.3 mg/cu m, the average error for chlorophyll a retrievals derived from irradiance reflectance data for degradation product-rich areas was reduced from +/-61 percent to +/-23 percent by application of an algorithm using two reflectance ratios rather than the commonly used algorithm applying a single reflectance ratio.
Document ID
19920032269
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Carder, K. L.
(University of South Florida Saint Petersburg, FL, United States)
Hawes, S. K.
(University of South Florida Saint Petersburg, FL, United States)
Steward, R. G.
(South Florida, University Saint Petersburg, FL, United States)
Baker, K. A.
(Scripps Institution of Oceanography La Jolla, CA, United States)
Smith, R. C.
(California, University Santa Barbara, United States)
Mitchell, B. G.
(NASA Headquarters Washington, DC United States)
Date Acquired
August 15, 2013
Publication Date
November 15, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Oceanography
Accession Number
92A14893
Funding Number(s)
CONTRACT_GRANT: NAGW-465
CONTRACT_GRANT: N00014-89-J-1091
CONTRACT_GRANT: NAS5-30779
Distribution Limits
Public
Copyright
Other

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