Rescaled Water Index
((G ** (1.0 / 2.71828)) * (1.0 / n) - S1) / ((G ** (1.0 / 2.71828)) * (1.0 / n) + S1)
G · S1
waterhydrologySentinel-2Landsat-OLILandsat-TMLandsat-ETM+MODIS