ATSAVI

The ATSAVI operator algorithm computes the Adjusted Transformed Soil-Adjusted Vegetation Index from a given product.

The ATSAVI results from the following equation:

ATSAVI = sla * (N - sla * R - slb) / (sla * N + R - sla * slb + 0.08 * (1 + pow(sla , 2.0)))

, where:

The bands are:

- R is the Red band
- N is the NIR band

and the coefficients are:

- l is the Canopy background adjustment coefficient
- sla is the Soil line slope coefficient
- slb is the Soil line intercept coefficient

ATSAVI-Flags

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

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