KOMPSAT-3 NLI
Nonlinear vegetation index for KOMPSAT-3
Vegetation Satellite Provider: SIIS
Applications
Dense vegetation monitoring
LAI estimation with reduced saturation
Forest canopy analysis
High biomass vegetation assessment
Agricultural crop monitoring
Quick Stats
Category: vegetation
Sensor: KOMPSAT-3
Provider: SIIS
Bands Used: 2
Description
A vegetation index that uses a nonlinear relationship between NIR and red bands to reduce the saturation effect at high biomass levels. The squared NIR term helps maintain sensitivity to vegetation changes in dense canopies.
Formulas
General Formula
KOMPSAT-3 Specific Formula
(NIR² - Red) / (NIR² + Red)Spectral Band Visualization
Band Wavelengths
red: 640-680
nir: 780-900
Code Examples
nli.py
References
Goel & Qin (1994). Influences of canopy architecture on relationships between various vegetation indices and LAI and Fpar: A computer simulation.
Chen (1996). Evaluation of vegetation indices and a modified simple ratio for boreal applications.
Pu et al. (2008). Comparative Analysis of EO-1 ALI and Hyperion, and Landsat ETM+ Data for Mapping Forest Crown Closure and Leaf Area Index.