| NSDSI1 Algorithm Specification | |
The NSDSI1 operator algorithm computes the
Normalized Shortwave-Infrared
Difference Bare Soil
Moisture Index 1 from a given
product.
The NSDSI1 results from the following equation:
NSDSI1 = (S1 - S2) / S1
, where:
The bands are:
- S1 is the SWIR 1 band
- S2 is the SWIR 2 band
Also the processor computes an additional flags band called 'nsdsi1_flags' with the following bit coding:
| Bit Position | Description |
|---|---|
| Bit 0 | The computed value for NSDSI1 is NAN or is Infinite |
| Bit 1 | The computed value for NSDSI1 is less than -1 (minus one) |
| Bit 2 | The computed value for NSDSI1 is greater than 1 (one) |