Gaofen-2 WDVI

Weighted Difference Vegetation Index for Gaofen-2

Vegetation Satellite Provider: CNSA

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Applications

Vegetation monitoring with soil correction

LAI estimation

Crop growth monitoring

Agricultural applications

Sparse vegetation mapping

Quick Stats

Category: vegetation

Sensor: Gaofen-2

Provider: CNSA

Bands Used: 2

Description

A vegetation index that accounts for soil background by using a weighted difference between NIR and red bands. The weight parameter 'a' is the slope of the soil line, typically derived from bare soil measurements.

Formulas

General Formula

Gaofen-2 Specific Formula

NIR - a * Red

Spectral Band Visualization

Band Wavelengths

red: 640-680

nir: 780-900

Code Examples

wdvi.py

References

Clevers (1989). Application of a weighted infrared-red vegetation index for estimating leaf Area Index by Correcting for Soil Moisture.

Baret & Guyot (1991). Potentials and limits of vegetation indices for LAI and APAR assessment.