Atmospheric correction over coastal waters with aerosol properties constrained by multi-pixel observations

We propose an innovative multi-pixel atmospheric correction approach (MPACA) to process high-spatial-resolution satellite measurements over coastal waters based on a revised POLYMER model. MPACA assumes the aerosol type be uniform within relatively small region, while load and water properties are allowed vary. Landsat-8 OLI images six locations with various turbidities were utilized evaluate performance of MPACA. The retrieved remote sensing reflectance (Rrs(λ)) by is validated in situ matchups obtained from two sources: ship-based field campaigns AERONET-OC networks. It found that, at each OLI's four visible bands, provided accurate Rrs(λ) products such environments, Root Mean Square Difference (RMSD) Absolute Percentage (MAPD) less than 0.0006 sr−1 16.2%, respectively. In contrast, values NASA's SeaDAS (v7.5), where pixel was treated independently, showed RMSD MAPD as ~0.0018 ~38.8%, Acolite-DSF, which assumed some spatial dependency, almost times that for band. Further, it appears Acolite-EXP did not perform well this evaluation dataset, ~0.0062 ~228.2%. These results suggest promising scheme waters, especially multi-band satellites have high resolution along least bands NIR or SWIR domain.