Correction of sea surface reflection in the coastal area

Hiroshi Murakami; Robert Frouin

doi:10.1117/12.805396

19 December 2008 Correction of sea surface reflection in the coastal area

Hiroshi Murakami, Robert Frouin

Proceedings Volume 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters; 715004 (2008) https://doi.org/10.1117/12.805396
Event: SPIE Asia-Pacific Remote Sensing, 2008, Noumea, New Caledonia

Abstract

Sea surface reflection, such as sunglint and white cap, causes significant error in the ocean color estimation. Current algorithms include statistical correction using lower-resolution wind speed data. However, we cannot use the scheme in the coastal area due to variable winds and air-sea stability caused by the coastal geographical structure. Linear combination technique which was proposed by Frouin et al. can estimate chlorophyll-a concentration even in high sunglint and whitecap areas. That indicates sunglint error of ocean-color imagery can/should be corrected using multispectral channels not using ancillary wind fields. We tried to correct sunglint using near infrared and shortwave infrared (2.1µm) channels. The correction improved estimation of water leaving reflectance and chlorophyll-a concentration, however, we still need additional information to estimate proper aerosol and sunglint simultaneously.

Citation Download Citation

Hiroshi Murakami and Robert Frouin "Correction of sea surface reflection in the coastal area", Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 715004 (19 December 2008); https://doi.org/10.1117/12.805396

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