RWIRescaled Water Index

Water

Formula

((G ** (1.0 / 2.71828)) * (1.0 / n) - S1) / ((G ** (1.0 / 2.71828)) * (1.0 / n) + S1)

Classification

Application domain: Water
Sensing modalities: Multispectral

Bands

G: Green.
S1: Short-wave Infrared (SWIR) 1.

Polarizations

No radar polarizations are used in this index.

Constants

n

Adjustment factor. This constant is calculated as `n = median(G ** (1.0 / 2.71828)) / median(G)`, reducing the spatial dimension (see https://doi.org/10.1109/JSTARS.2025.3562089).

Default value5

Contributor

Index contributed by https://github.com/edujusti on 2026-03-31.

RWIRescaled Water Index

Formula ​

Classification ​

Bands ​

Polarizations ​

Constants ​

Contributor ​