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Fire Location Monitoring Items

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County Town Brightness temperature Date
台中市 龍井區 335.300 2018/06/28 11:10:00.000
台中市 龍井區 335.300 2018/06/28 11:10:00.000
台中市 龍井區 335.300 2018/06/28 11:10:00.000
台中市 龍井區 335.300 2018/06/28 11:10:00.000
台中市 龍井區 335.300 2018/06/28 11:10:00.000
台中市 龍井區 335.300 2018/06/28 11:10:00.000

Concept of fire location data

To strengthen the prevention of air pollution, the EPA cooperates with the Central Weather Bureau and applies satellite remote sensing technology to enhance environmental monitoring ability. By receiving real-time observation data from the satellite, fire locations can be mapped (as shown in Figure 1). It can help strengthen non-traditional abilities in pollution monitoring and control, including analyzing hotspots of trash burning, monitoring agricultural waste biomass burning, and inspecting abnormalities in flares of fixed air pollution sources. The data is provided to local environmental protection departments and can increase the efficiency in auditing and law enforcement.

Satellite monitoring

Currently, the EPA's fire location data mainly comes from Terra, Aqua and Suomi NPP, the 3 polar-orbiting satellites of Central Weather Bureau. The first 2 are equipped with moderate resolution imaging spectroradiometer (MODIS) and the 3rd one is equipped with visible infrared imaging radiometer suite (VIIRS). They are constantly circling around the earth by an almost North-South axis everyday to conduct observation (as shown in Figure 2).

Theories of fire location

The analysis of fire location data is done mainly by making use of the multispectral sensor equipped on the satellites. After analyzing middle-infrared and thermal infrared spectrums, the EPA can evaluate which area on the ground has higher temperature and calculate reasonable coordinates and the brightness temperature (as shown in Figure 3). After the analysis, the EPA can immediately provide when and where (including coordinates, township, county, or city) a place becomes a fire location, along with brightness temperature and radiant power of the fire location, to local environmental protection departments through emails. For more detailed theories, please refer to the web-page of NASA Fire Information for Resource Management System (FRIMS).

  • 【Figure 1 Taiwan fire location schemetic map】
  • 【 Vedio 1 Introduction to polar orbit satellite】
  • 【Figure 2 Process of fire point analysis】

Fire location FAQ