Inverse modeling for retrieval of ocean color parameters in Case II coastal waters: an analysis of the minimum error

Roland Doerffer; Helmut Schiller

doi:10.1117/12.190042

26 October 1994 Inverse modeling for retrieval of ocean color parameters in Case II coastal waters: an analysis of the minimum error

Roland Doerffer, Helmut Schiller

Author Affiliations +

Proceedings Volume 2258, Ocean Optics XII; (1994) https://doi.org/10.1117/12.190042
Event: Ocean Optics XII, 1994, Bergen, Norway

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.

Citation Download Citation

Roland Doerffer and Helmut Schiller "Inverse modeling for retrieval of ocean color parameters in Case II coastal waters: an analysis of the minimum error", Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); https://doi.org/10.1117/12.190042

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