Remote Sensing of Water Quality Indexes from Sentinel-2 Imagery: Development and Validation Around Italian River Estuaries

Results showed that the regional band ratio algorithm developed for the Tyrrhenian coasts study area, using MSI B1-B3 bands for the estimation of Chl-a, gives better results than standard OC3 algorithm, with coefficient of determination R=0.55 and RMSE 0.1 μg/l. Concerning turbidity a significant coefficient of determination (R=0.96, RMSE 0.61 FTU) is observed between the turbidity measured in situ (Pescara River Estuary) and satellite single band exponential model.