Gaofen-2 NDWI

Normalized Difference Water Index for Gaofen-2

Water Satellite Provider: CNSA
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Applications

Water Body Mapping
Flood Monitoring
Wetland Assessment
Drought Studies

Quick Stats

Category: water
Sensor: Gaofen-2
Provider: CNSA
Bands Used: 2

Description

Used to detect water bodies and monitor water content in vegetation. Positive values typically indicate water presence.

Formulas

General Formula

Gaofen-2 Specific Formula

(Green - NIR) / (Green + NIR)

Spectral Band Visualization

Band Wavelengths

Green: 510-580 nm
NIR: 770-900 nm

Code Examples

ndwi.py

References

McFeeters (1996)