| NIRvH2 Algorithm Specification | |
The NIRvH2 operator algorithm computes the
Hyperspectral Near-Infrared
Reflectance of Vegetation from a given
product.
The NIRvH2 results from the following equation:
NIRvH2 = N - R - k * (lambdaN - lambdaR)
, 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
- k is the Slope parameter by soil used for NIRvH2
coefficient
- lambdaN is the NIR wavelength used for NIRvH2 and
NDGI coefficient
- lambdaR is the Red wavelength used for NIRvH2 and
NDGI coefficient
Also the processor computes an additional flags band called 'nirvh2_flags' with the following bit coding:
| Bit Position | Description |
|---|---|
| Bit 0 | The computed value for NIRvH2 is NAN or is Infinite |
| Bit 1 | The computed value for NIRvH2 is less than -1 (minus one) |
| Bit 2 | The computed value for NIRvH2 is greater than 1 (one) |