COMPARISON OF TWO ATMOSPHERIC CORRECTION ALGORITHMS IN COASTAL WATERS FOR SeaWiFS IMAGES: VALIDATION AND SENSITIVITY STUDY
نویسندگان
چکیده
The use of satellites to monitor the color of the ocean requires effective removal of the atmosphere signal. The methods for treating the atmosphere have depended on the high absorption of red and near-infrared (NIR) light by water. In coastal waters, the presence of water-leaving radiances in the NIR introduces two sources of error into the removal of the aerosol. As a result, the atmospheric radiances will be overestimated at all bands with increasing severity for shorter wavelengths, even leading to negative radiances in the blue bands in coastal water. This results in severe errors, if not complete failure, of various algorithms for chlorophyll-a concentration and inherent optical properties.
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