NAIP ARVI2
Atmospherically Resistant Vegetation Index 2 for NAIP
Vegetation Satellite Provider: USDA
Applications
atmospherically resistant vegetation monitoring
chlorophyll content estimation
vegetation health assessment
agricultural monitoring
vegetation fraction estimation
photosynthetic activity monitoring
Quick Stats
Category: vegetation
Sensor: NAIP
Provider: USDA
Bands Used: 3
Description
ARVI2 is an enhanced version of the Atmospherically Resistant Vegetation Index designed to be resistant to atmospheric effects while being more sensitive to a wide range of chlorophyll concentrations. It builds upon the original ARVI concept by Kaufman and Tanré, providing improved vegetation monitoring capabilities under varying atmospheric conditions.
Formulas
General Formula
NAIP Specific Formula
(NIR - (Red - γ * (Red - Blue))) / (NIR + (Red - γ * (Red - Blue)))Spectral Band Visualization
Band Wavelengths
BLUE: 450-520
RED: 640-760
NIR: 780-1400
Code Examples
arvi2.py
References
Gitelson, A.A., Kaufman, Y.J., and Merzlyak, M.N. (1996) - Use of a green channel in remote sensing of global vegetation from EOS-MODIS
Kaufman, Y.J. and Tanré, D. (1992) - Atmospherically Resistant Vegetation Index (ARVI) for EOS-MODIS