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NGRDINormalized Green Red Difference Index

VegetationMultispectralCitation Rank #3

Summary

The Normalized Green Red Difference Index (NGRDI) is a vegetation spectral index intended for multispectral sensing. It was introduced in 1979; its source is cited as Compton J. Tucker (1979). Red and photographic infrared linear combinations for monitoring vegetation. Remote Sensing of Environment, 8(2). https://doi.org/10.1016/0034-4257(79)90013-0 .

Based on the latest citation data, this index is in the 99.36th percentile overall, ranking 3 out of 313 indices with citation data. Among the 2 indices published within two years of 1979, it ranks 1 (100th percentile). Within the vegetation application domain, it is in the 99.05th percentile and ranks 3 out of 211 indices with citation data. Among the 2 similarly aged vegetation indices, it ranks 1 (100th percentile).

Formula

(G - R) / (G + R)

Bands

G

Green.

R

Red.

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.