BJ3A WDVI

Weighted Difference Vegetation Index for BJ3A

Vegetation Satellite Provider: 21AT

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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: BJ3A

Provider: 21AT

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

BJ3A 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.