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Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2311 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2316 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2321 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2326 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2331 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2336 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2341 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2346 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2351 UTC
Fire Temperature - RGB used to highlight fires - 25 Jan 2025 - 2356 UTC
Fire Temperature - RGB used to highlight fires - 26 Jan 2025 - 0001 UTC
Fire Temperature - RGB used to highlight fires - 26 Jan 2025 - 0006 UTC
Fire Temperature key:
1 - Warm fire 2 - Very warm fire 3 - Hot fire 4 - Very hot fire 5 - Burn scars 6 - Clear sky: land 7 - Clear sky: water/snow/night 8 - Water clouds 9 - Ice clouds
Fire Temperature RGB allows the user to identify where the most intense fires are occurring and differentiate these from "cooler" fires. The RGB takes advantage of the fact that from 3.9µm to shorter wavelengths, background solar radiation and surface reflectance increases. This means that fires need to be more intense in order to be detected by the 2.2 and 1.6µm bands, as more intense fires emit more radiation at these wavelengths. Therefore, small/"cool" fires will only show up at 3.9µm and appear red while increases in fire intensity cause greater contributions of the other channels resulting in white very intense fires.
