NDWIns

The NDWIns operator algorithm computes the Normalized Difference Water Index with no Snow Cover and Glaciers from a given product.

The NDWIns results from the following equation:

NDWIns = (G - alpha * N) / (G + N)

, where:

The bands are:

- G is the Green band
- N is the NIR band

and the coefficients are:

- l is the Canopy background adjustment coefficient
- alpha is the Weighting coefficient used for WDRVI, BWDRVI and NDPI coefficient

NDWIns-Flags

Also the processor computes an additional flags band called 'ndwins_flags' with the following bit coding:

Bit Position	Description
Bit 0	The computed value for NDWIns is NAN or is Infinite
Bit 1	The computed value for NDWIns is less than -1 (minus one)
Bit 2	The computed value for NDWIns is greater than 1 (one)