How to NDWI/ Normalize Difference Water Index for your study area.

Normalize Difference Water Index (NDWI) is use for the water bodies analysis. The index uses Green and Near infra-red bands of remote sensing images. Higher NDWI values indicate sufficient moisture, while a low value indicates water stress.

NDWI Formula,

NDWI= (Green-NIR) / (Green+NIR)
For Landsat 8, NDWI= (Band 3-Band 5) / (Band 3+ Band 5)

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Related Tags: How to NDWI, Water body analysis in arcGIS, Normalized Difference Water Index, How to Normalized Difference Water Index.

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