Active Fire Detection

Show Script Download Script

//Identify active fire points
//by Tiznger startup co
//www.tiznegar.com

//To increase the accuracy of altitude <3km Or zoom >12
//For Sentinel-2
//Cloud mask

var NGDR = index(B02, B03);
var Inverse = (B02 - 0.2) / (0.5 - 0.2);
//Fire indicator
var SAHM_INDEX= ((B12 - B11) / (B12 + B11));

if (Inverse > 1) { 
    return [0.5 * B04, 0.5 * B03, 20 * B02 ];
}

if (Inverse > 0 && NGDR>0) { 
    return [0.5 * B04  , 0.5 * B03, 20 * B02];
}

if((SAHM_INDEX>0.4)||(B12>1)){
  return[20*B04, 1*B03, 1*B02];
}

else {
 return [B04,B04,B04]
}

//Red color indicates active fire areas and points
//The blue range is a cloud mask

Evaluate and visualize

• Sentinel Playground
• EO Browser

General description

The script for Sentinel-2 identifies active fire points, offering valuable information for monitoring fire spots in any area. The data output of this script is equivalent to generating an online database of active fire points, such as firms.modaps.eosdis.nasa.gov, but for a smaller range and with a time interval of once every 5 days.

This script is also available for Sentinel-3 SLSTR.

Author of the script

• TIZNEGAR Startup co

Description of representative images

California wildfires, 2018, acquired on August 5, 2019, processed by Sentinel Hub.

Croatia wildfires, 2017, acquired on July 17, 2017, processed by Sentinel Hub.

Australia wildfires, 2019, acquired on January 5, 2019, processed by Sentinel Hub.