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Proceedings Paper

Inverse modeling for retrieval of ocean color parameters in Case II coastal waters: an analysis of the minimum error
Author(s): Roland Doerffer; Helmut Schiller
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Paper Abstract

In turbid waters of coastal zones (case II water) the retrieval of the concentration of chlorophyll from remotely sensed spectral radiances becomes difficult because of the influence of gelbstoff and suspended matter on the radiance spectrum. For the coastal zone color scanner (CZCS) an inverse modeling method was developed to derive the concentrations of gelbstoff, suspended matter and chlorophyll, and the aerosol path radiance. The minimum error we have to expect for this system is analyzed by modeling the concentration change which is necessary to cause a change in the radiance corresponding to 1 digital count. The determination of the minimum error in the retrieval procedure is based on the evaluation of the Hesse Matrix of the chi square function. It turns out that for case II water the channel most sensitive to changes to all three groups of water constituents is CZCS 4 at 670 nm. The retrieval of the concentration is most difficult for chlorophyll, while the error for suspended matter and gelbstoff and for the aerosol path radiance is much smaller.

Paper Details

Date Published: 26 October 1994
PDF: 7 pages
Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190042
Show Author Affiliations
Roland Doerffer, GKSS Forschungszentrum GmbH (Germany)
Helmut Schiller, GKSS Forschungszentrum GmbH (Germany)

Published in SPIE Proceedings Vol. 2258:
Ocean Optics XII
Jules S. Jaffe, Editor(s)

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