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NDGINormalized Difference Greenness Index

VegetationMultispectralCitation Rank #245

Summary

The Normalized Difference Greenness Index (NDGI) is a vegetation spectral index intended for multispectral sensing. It was introduced in 2019; its source is cited as Wei Yang, Hideki Kobayashi, Cong Wang, Miaogen Shen, Jin Chen, Bunkei Matsushita, Yanhong Tang, Yongwon Kim, M. Syndonia Bret-Harte, Donatella Zona, Walter Oechel, & Akihiko Kondoh (2019). A semi-analytical snow-free vegetation index for improving estimation of plant phenology in tundra and grassland ecosystems. Remote Sensing of Environment, 228. https://doi.org/10.1016/j.rse.2019.03.028 .

Based on the latest citation data, this index is in the 22.36th percentile overall, ranking 245 out of 313 indices with citation data. Among the 68 indices published within two years of 2019, it ranks 46 (35.29th percentile). Within the vegetation application domain, it is in the 18.48th percentile and ranks 174 out of 211 indices with citation data. Among the 34 similarly aged vegetation indices, it ranks 21 (44.12th percentile).

Other indices from the same source

These catalogue entries share this index's scientific source and citation.

Formula

(((lambdaN - lambdaR)/(lambdaN - lambdaG)) * G + (1.0 - ((lambdaN - lambdaR)/(lambdaN - lambdaG))) * N - R)/(((lambdaN - lambdaR)/(lambdaN - lambdaG)) * G + (1.0 - ((lambdaN - lambdaR)/(lambdaN - lambdaG))) * N + R)

Bands

G

Green.

N

Near-Infrared (NIR).

R

Red.

Polarizations

No radar polarizations are used in this index.

Constants

lambdaG

Green central wavelength (nm).

Default valueNot specified
lambdaN

NIR central wavelength (nm).

Default valueNot specified
lambdaR

Red central wavelength (nm).

Default valueNot specified

Reductions

No contextual reductions are used in this index.

Released under the MIT License.