Sentinel-2 NDWI
Normalized Difference Water Index (McFeeters) for Sentinel-2
Water Satellite Provider: ESA
Applications
open water feature detection
water body mapping
water content monitoring
turbidity estimation
wetland mapping
flood monitoring
coastal zone management
Quick Stats
Category: water
Sensor: Sentinel-2
Provider: ESA
Bands Used: 2
Description
The Normalized Difference Water Index (NDWI) proposed by McFeeters (1996) is designed to delineate open water features and enhance their presence in remotely-sensed digital imagery. It uses reflected near-infrared radiation and visible green light to enhance water features while eliminating soil and terrestrial vegetation features.
Formulas
General Formula
Sentinel-2 Specific Formula
(B3 - B8) / (B3 + B8)Spectral Band Visualization
Band Wavelengths
Green: 560
NIR: 830
Code Examples
ndwi_mcfeeters.py
References
McFeeters, S.K. (1996) - The use of the Normalized Difference Water Index (NDWI) in the delineation of open water features. International Journal of Remote Sensing, 17(7), 1425-1432