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- W2384657862 abstract "The present research intended to introduce the author's fire-monitoring method of FPI-NDVI, or a fire point index-FPI index by using the fire point radiation MODIS data and the 22 channels as well as the 31 channels (background radiation). According to the fire-monitoring principle and the difference between the background radiation and fire point radiation, fire accidents can take place usually only when the vegetation coverage reaches a certain extent. It was just for this reason that the conditions of the fire-occurrence were revised and the possibilities of fire-causing disasters were excluded by removing the areas with no vegetation and the places with scarce vegetation, for it was necessary to remove the liability for the bare soil or the urban thermal islands to get on fire. By taking the fire that took place in Hunan province on Ma.1,2008 and Heilongjiang province on Oct. 15, 2004, as an example, in particular, this paper drew a few kinds of geographical features of the principle and analyzed the values of NDVI as well as the relations between the different surface types. Next, cloud was taken as the biggest factor that helps to define FPI and the NDVI threshold value with the vegetation being the key factor influencing the fire burning. Three strong points can be found in the use of MODIS absolute fire point recognition algorithm, which can be illustrated as follows: first of all, it is the noise ingredient for the effective attenuation-detecting instrument; secondly, it may have some counter-balanced influence on the air movement in a certain degree; third, it helps the fire-detectors' to narrow their scanning attention. Thus, it can be concluded that the suggested method in this paper helps to enhance its monitoring precision with greater extraction speed." @default.
- W2384657862 created "2016-06-24" @default.
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- W2384657862 date "2008-01-01" @default.
- W2384657862 modified "2023-09-23" @default.
- W2384657862 title "Fire-monitoring method of FPI-NDVI based on MODIS data" @default.
- W2384657862 hasPublicationYear "2008" @default.
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