NDVI 705 (Normalized Difference Snow Index)

NDVI 705 (ND705) is a red‑edge NDVI variant that uses reflectance at about 705 nm instead of the traditional red band to enhance correlation with total chlorophyll. By positioning the “red” channel in the red‑edge region, ND705 maintains sensitivity over a wider chlorophyll range and is effective for monitoring crop health and pigment dynamics in dense canopies.

Firefly = (B086-B071)/(B086+B071)\