Sentinel-2 BAI
Burn Area Index for Sentinel-2
Burn Satellite Provider: ESA
Applications
burned area detection
fire severity assessment
post-fire monitoring
charcoal signal detection
fire damage mapping
wildfire impact assessment
Quick Stats
Category: burn
Sensor: Sentinel-2
Provider: ESA
Bands Used: 2
Description
The Burn Area Index (BAI) was developed by Chuvieco et al. (2002) to identify burned areas using the red and NIR spectral bands. BAI emphasizes the charcoal signal in post-fire images by considering the spectral distance from each pixel to a reference spectral point where recently burned areas tend to converge.
Formulas
General Formula
Sentinel-2 Specific Formula
1 / ((0.1 - B4)^2 + (0.06 - B8)^2)Spectral Band Visualization
Band Wavelengths
RED: 640-760
NIR: 780-1400
Code Examples
bai.py
References
Chuvieco, E., Martin, M.P., and Palacios, A. (2002) - Assessment of Different Spectral Indices in the Red-Near-Infrared Spectral Domain for Burned Land Discrimination. Remote Sensing of Environment, 112, 2381-2396
Martín, M.P. (1998) - Cartografía e inventario de incendios forestales en la Península Ibérica a partir de imágenes NOAA-AVHRR