Gaofen-1 GSAVI
Green Soil Adjusted Vegetation Index for Gaofen-1
Vegetation Satellite Provider: CNSA
Applications
Soil Analysis
Vegetation Monitoring
Agriculture
Sparse Vegetation Assessment
Soil Background Correction
Quick Stats
Category: vegetation
Sensor: Gaofen-1
Provider: CNSA
Bands Used: 2
Description
Soil-adjusted vegetation index using green wavelengths to minimize soil background interference. Incorporates a soil adjustment factor (L=0.5) to improve vegetation signal extraction.
Formulas
General Formula
Gaofen-1 Specific Formula
(NIR - Green) / (NIR + Green + L * (1 + L))Spectral Band Visualization
Band Wavelengths
Green: 510-580 nm
NIR: 770-900 nm
Code Examples
gsavi.py
References
Gilabert et al. (2002)