The VARI700 operator algorithm computes the Visible Atmospherically Resistant Index (700 nm) from a given product.

The VARI700 results from the following equation:

VARI700 = (RE1 - 1.7 * R + 0.7 * B) / (RE1 + 1.3 * R - 1.3 * B)

, where:

The bands are:

- B is the Blue band
- RE1 is the Red Edge 1 band
- R is the Red band

Also the processor computes an additional flags band called 'vari700_flags' with the following bit coding:

Bit Position	Description
Bit 0	The computed value for VARI700 is NAN or is Infinite
Bit 1	The computed value for VARI700 is less than -1 (minus one)
Bit 2	The computed value for VARI700 is greater than 1 (one)