Dragonette-2/3 ARVI2

Atmospherically Resistant Vegetation Index 2 for Dragonette-2/3

Vegetation Satellite Provider: Wyvern

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Applications

atmospherically resistant vegetation monitoring

chlorophyll content estimation

vegetation health assessment

agricultural monitoring

vegetation fraction estimation

photosynthetic activity monitoring

Quick Stats

Category: vegetation

Sensor: Dragonette-2/3

Provider: Wyvern

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

Dragonette-2/3 Specific Formula

(Band31 - (Band20 - γ * (Band20 - Band4))) / (Band31 + (Band20 - γ * (Band20 - Band4)))

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