8. Detection of forest fire using Sentinel-3 SLSTR data in Khanh Binh Tay commune, Tran Van Thoi district, Ca Mau province

Abstract

Sentinel-3A/3B SLSTR multispectral satellite data provide the ability to monitor the earth's surface temperature to detect areas of wildfires. Forest fire detection is based on the difference in surface temperature of the fire area and the average ambient temperature of the surrounding area (300K). This work was performed using two spectral channels Sentinel-3 SLSTR MIR (3.74 µm) and spectral channels Sentinel-3 SLSTR TIR (10.85 µm). These two spectral channels are used because the difference increases for areas without wildfires and the difference decreases for areas with wildfires. In addition, other spectral channels of Sentinel-3 SLSTR data exclude areas covered by clouds, and supporting data on land cover classes, including vegetation classes help localize forest areas, which are combined to give the final wildfire area result. Sentinel-3 multispectral satellite data is effective in detecting forest fires during both day and night due to the use of infrared spectral channels and the ability to provide daily and nightly data with a wide scanning range ( from 740 to 1,400 km) covering a large area. This data can be combined with MODIS data to help quickly detect fire events in sparsely populated forest areas.