基于时空精细化及栅格测度的林火蔓延模拟研究
Simulation of Forest Fire Spread Based on Spatial and Temporal Refinement and raster metrics
[目的]根据火场参数及自然地理环境条件,精确模拟林火蔓延趋势,为火灾扑救指挥决策提供科基础。[方法]以云南省 2006 年安宁"3.29"火场为对象,分析影响林火蔓延的驱动因子并作GIS时空精细化和栅格模拟,基于元胞自动机理论,结合王正非和毛贤敏修正的林火蔓延模型,借助MATLAB计算机模拟,实现对林火蔓延时空动态可视化,并比对历史真实火场档案,进行精度评估。[结果](1)以机理分析风速驱动因子表明风速与海拔成正相关,而与坡度、地形起伏度、地表粗…查看全部>>
[Objective]Based on the parameters of the fire site and the natural geographical environment conditions,forest fire trend was simulated accurately aimed at providing a scientific basis for fire rescue command decision-making.[Method]Taking the Anning"3.29"fire site in 2006 of Yunnan Province as an example,the driving factors affecting the forest fire spread were analyzed,and GIS spatio-temporal refinement and grid simulation were conducted.Based on the cellu…查看全部>>
叶江霞;万兴永;赵凤君;
Forest fire spread Cellular automata Spatio-temporal refinement Velocity field
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