| BAIS2 Algorithm Specification | |
The BAIS2 operator algorithm computes the Burned
Area Index for Sentinel 2
from a given product.
The BAIS2 results from the following equation:
BAIS2 = (1.0 - pow(((RE2 * RE3 * N2) / R) , 0.5) * pow((S2 -
N2) / (S2 + N2) , 0.5) + 1.0)
, where:
The bands are:
- RE2 is the Red Edge 2 band
- RE3 is the Red Edge 3 band
- R is the Red band
- N2 is the NIR 2 band
- N is the NIR band
- S2 is the SWIR 2 band
Also the processor computes an additional flags band called 'bais2_flags' with the following bit coding:
| Bit Position | Description |
|---|---|
| Bit 0 | The computed value for BAIS2 is NAN or is Infinite |
| Bit 1 | The computed value for BAIS2 is less than -1 (minus one) |
| Bit 2 | The computed value for BAIS2 is greater than 1 (one) |