| 基于GIS模型的林火蔓延计算机模拟 |
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| 引用本文： | 张应乾,罗传文.基于GIS模型的林火蔓延计算机模拟[J].森林工程,2013(3):13-17. |
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| 作者姓名： | 张应乾 罗传文 |
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| 作者单位： | 东北林业大学林学院,哈尔滨150040 |
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| 基金项目： | 十二五科技支撑项目（2012BAD22B0101-1） |
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| 摘 要： | 采用王正非和毛贤敏的组合模型,以Visual Studio2008作为开发平台,使用C#3.5语言实现计算机模拟运算,最终结合ArcEnginet9.3相应控件对模拟结果数据进行可视化呈现,生成林火蔓延图,实现对林火蔓延的动态模拟,可视化地表达林火的燃点位置、蔓延趋势、方向及不同时刻的燃烧状态。由于在模拟运算时对所有数据都采用IO流操作,较读写栅格数据提高效率,同时通过动态生成林火蔓延速度来更加合理的描述林火蔓延,充分发挥王正非和毛贤敏的组合模型,在风速、风向和地形上,对林火蔓延速度描述更为准确。通过对模拟结果的分析得出,在起火点位置数据合理的情况下,模拟效果很好。
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| 关 键 词： | 组合模型 ArcEngine IO流 林火蔓延 |
Forest Fire Spread Simulation Based on GIS Model |
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| Zhang Yingqian,Luo Chuanwen.Forest Fire Spread Simulation Based on GIS Model[J].Forest Engineering,2013(3):13-17. |
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| Authors: | Zhang Yingqian Luo Chuanwen |
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| Institution: | ( School of Forestry, Northeast Forestry University, Harbin 150040) |
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| Abstract: | By using the combination model proposed by Wang Zhengfei and Mao Xianmin, taking Visual Studio2008 as a devel- opment platform, using C# 3.5 language to realize computer simulation operation, and combining the corresponding controls in Ar- cEnginet9. 3 to visually generate forest-fire spread diagram based on the simulation data, this study realized dynamic simulation per- formance of forest fires. The burning point location of the fire, spread trend, spread direction, and combustion states at different time were visualized. Because the simulation operation on all data uses IO flow operation, the efficiency is greatly improved compared to read and write grid data. At the same time through the dynamic formation forest-fire spread speed to more reasonable describe forest- fire spread, the advantages of Wang Zhengfei and Mao Xianmin＇s combination model in more accurately describing wind speed, direc- tion, and terrain of forest fire spread speed were fully played. Based on the analysis of the simulation results obtained, the simulation effect is very good on the condition of reasonable origin burning point （flash point should not be set to rivers）. |
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| Keywords: | combination model ArcGIS Engine IO flow forest-fire spread |
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