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What is NDWI for Water Body Analysis about?

The Normalized Difference Water Index (NDWI) uses green and near-infrared bands to identify water bodies in remote sensing images. It enhances water information but can overestimate water by detecting built-up land. The NDWI calculates the difference between green and near-infrared bands divided by their sum, with water bodies having values over 0.5 to distinguish them from vegetation with smaller values or built-up areas with values between 0 and 0.2.

Author

NM Nomeen

Language

EN