Adaptation and Validation of the Swire Algorithm for Sentinel-3 Over Complex Waters of Pearl River Estuary

Accurate removal of atmospheric interference and precise retrieval of water-leaving reflectance is decisive for subsequent water color applications. As follow-up satellite of Envisat, Sentinel-3 will provide valuable observations of the earth. This study aims to adapt the shortwaveinfrared extrapolation (SWIRE) atmospheric correctionalgorithm for Sentinel-3 to derive remote sensing reflectance of turbid waters, and validation it using our in -situ data in Pearl River Estuary. Results showed that SWIRE algorithm could effectively remove atmospheric perturbations, and produced more accurate remote sensing reflectance over complex waters of PRE than NIR and SWIR algorithms.