Ocean color atmospheric correction over the coastal region with multi-viewing satellite data

摘要

The atmospheric correction for the ocean color remote sensing is the most important technique to retrieve the water leaving reflectance, which is less than about 10% of the satellite reflectance, and its major uncertainties are occurred by the estimation error of atmospheric aerosols that is highly variable in both space and time. Especially, in the general algorithm with two near-infrared observation data, the correction over the coastal region becomes more difficult because the influence of the signal other than atmosphere (e.g. turbid water background) cannot be ignored. To improve the atmospheric correction accuracy in the turbid water area, the atmospheric correction algorithm with multi-viewing observation data was examined. In this paper, we present the application result with POLDER2 multi-viewing observation data over the Yellow Sea. As the results of this test, the water leaving reflectance with the standard deviation from 0.79% to 11.48% was retrieved for two test points.