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NDWINormalized Difference Water Index

WaterMultispectralCitation Rank #5

Summary

The Normalized Difference Water Index (NDWI) is a water spectral index intended for multispectral sensing. It was introduced in 1996; its source is cited as S. K. McFEETERS (1996). The use of the Normalized Difference Water Index (NDWI) in the delineation of open water features. International Journal of Remote Sensing, 17(7). https://doi.org/10.1080/01431169608948714 .

Based on the latest citation data, this index is in the 98.72th percentile overall, ranking 5 out of 313 indices with citation data. Among the 47 indices published within two years of 1996, it ranks 1 (100th percentile). Within the water application domain, it is in the 100th percentile and ranks 1 out of 31 indices with citation data. Among the 1 similarly aged water index, it ranks 1 (100th percentile).

Formula

(G - N) / (G + N)

Bands

G

Green.

N

Near-Infrared (NIR).

Polarizations

No radar polarizations are used in this index.

Constants

No constants are used in this index.

Reductions

No contextual reductions are used in this index.

Released under the MIT License.