# 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: tgi
name: Triangular Greenness Index
short_name: TGI
formula: '- 0.5 * (190 * (R - G) - 120 * (R - B))'
bands:
- R
- G
- B
domain: vegetation
theme: vegetation
concepts: []
rank: null
display:
  colormap: rdylgn
  range:
  - -0.2
  - 0.9
references:
- url: http://dx.doi.org/10.1016/j.jag.2012.07.020
date_of_addition: '2021-05-14'
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: TGI
match_tags:
- b
- g
- greenness
- index
- r
- triangular
- vegetation
status: stable