Summary
Calculates the Burn Area Index (BAI) from a multiband raster object and returns a raster object with the index values.
Discussion
The Burn Area Index (BAI) uses the reflectance values in the red and NIR portion of the spectrum to identify the areas of the terrain affected by fire.
BAI = 1/((0.1 -RED)^2 + (0.06 - NIR)^2)- Red = pixel values from the red band
- NIR = pixel values from the near infrared band
For information about other multiband raster indexes, see the Band Arithmetic raster function.
The referenced raster dataset for the raster object is temporary. To make it permanent, you can call the raster object's save method.
Syntax
BAI (raster, {red_band_id}, {nir_band_id})| Parameter | Explanation | Data Type |
raster | The input raster. | Raster |
red_band_id | The band ID of the red band. The ID index uses one-based indexing. (The default value is 3) | Integer |
nir_band_id | The band ID of the near-infrared band. The ID index uses one-based indexing. (The default value is 4) | Integer |
| Data Type | Explanation |
| Raster | The output raster object with the BAI values. |