# Generated by scripts/sync_indices.py from Awesome Spectral Indices (MIT).
# DO NOT EDIT BY HAND. Edit overlays (_asi_*.yaml, _folia_*.yaml) and re-run.
# Spec: docs/spec/SPECTRAL_INDICES.md
slug: ndgi
name: Normalized Difference Greenness Index
short_name: NDGI
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
- N
- R
constants:
- lambdaN
- lambdaR
- lambdaG
domain: vegetation
theme: vegetation
concepts: []
rank: null
display:
  colormap: rdylgn
  range:
  - -0.2
  - 0.9
references:
- url: https://doi.org/10.1016/j.rse.2019.03.028
date_of_addition: '2022-01-20'
contributor: https://github.com/davemlz
platforms:
- Sentinel-2
- Landsat-OLI
- Landsat-TM
- Landsat-ETM+
- MODIS
- Planet-Fusion
source:
  authority: awesome-spectral-indices
  commit_sha: 7f28d3fe68af1287f7449faf0685659e73197212
  upstream_id: NDGI
match_tags:
- difference
- g
- greenness
- index
- n
- normalized
- r
- vegetation
status: stable