# 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: ndisib
name: Normalized Difference Impervious Surface Index Blue
short_name: NDISIb
formula: (T - (B + N + S1) / 3.0)/(T + (B + N + S1) / 3.0)
bands:
- T
- B
- N
- S1
domain: urban
theme: infrastructure
concepts: []
rank: null
display:
  colormap: ylorbr
  range:
  - 0.0
  - 1.0
references:
- url: https://doi.org/10.14358/PERS.76.5.557
date_of_addition: '2022-04-18'
contributor: https://github.com/davemlz
platforms:
- Landsat-TM
- Landsat-ETM+
source:
  authority: awesome-spectral-indices
  commit_sha: 7f28d3fe68af1287f7449faf0685659e73197212
  upstream_id: NDISIb
match_tags:
- b
- blue
- difference
- impervious
- index
- n
- normalized
- s1
- surface
- t
- urban
status: stable