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Simulation of Grassland Fire Spread by Himawari-8 Geostationary Satellite

LIU Yang;YU Shan;DU Wa-la;YANG Xiao-ying;College of Geography, Inner Mongolia Normal University;Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems,Inner Mongolia Normal University;Institute of Grassland Research, Chinese Academy of Agricultural Sciences;  
It is difficult to obtain the initial speed of grassland fire spread and the accuracy of static meteorological data in the traditional simulation model of grassland fire spread is low. Based on HIMAWARI-8 with high time resolution and time-series linear extrapolation method instead of experiments, the initial speed of grassland fire spread was obtained. By using the GRAPES_MESO meteorological numerical forecast product as high-precision dynamic meteorological data, the geographical cellular automata was combined with the Wang Zhengfei Grassland Fire Spread Model to predict and simulate the grassland fire spread boundary within a certain time. The spatio-temporal consistency between the simulation results and the actual HIMAWARI-8 image extraction is high, and the relative bias of the spread area is from 1.49% to 42.87%. The Boundary root-mean-square error(BRMSE) of the spreading boundary ranges from 1.43 to 22.14 pixels. The Cell mean absolute error(CMAPE) of pixel is 18.09%. The correct simulation area of the model is 84.68%. The algorithm can be used to reproduce and predict the spreading process of grassland fire.
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