| 利用元胞自动机作用域构建林火蔓延模型 |
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| 引用本文： | 王海军,张文婷,陈莹莹,贺三维.利用元胞自动机作用域构建林火蔓延模型[J].武汉大学学报(信息科学版),2011(5):575-578,631,633. |
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| 作者姓名： | 王海军 张文婷 陈莹莹 贺三维 |
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| 作者单位： | 武汉大学资源与环境科学学院; |
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| 基金项目： | 国家自然科学基金资助项目(40871179) |
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| 摘 要： | 在现有的基于元胞自动机的林火蔓延模型的基础上,提出了元胞作用域的概念,将元胞自身属性与外界影响通过作用域的概念归纳为一个整体。建立的基于元胞作用域的林火蔓延模型不仅包括中心元胞的属性,如可燃物类型、气温等,还将邻居元胞的点燃系数、距离系数、风作用项及地形作用项纳入考虑范畴,其中距离系数以基于地图代数的障碍距离为基础,地形作用项则以DEM为基础求取。模拟结果表明,基于元胞作用域的林火蔓延模型能够真实地反映现实世界林火蔓延的过程。
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| 关 键 词： | 元胞作用域 地图代数 元胞自动机 林火蔓延模型 数字高程模型 |
Fire Spreading Model Based on CA Scope |
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| WANG Haijun ZHANG Wenting CHEN Yingying HE Sanwei.Fire Spreading Model Based on CA Scope[J].Geomatics and Information Science of Wuhan University,2011(5):575-578,631,633. |
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| Authors: | WANG Haijun ZHANG Wenting CHEN Yingying HE Sanwei |
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| Institution: | WANG Haijun1 ZHANG Wenting1 CHEN Yingying1 HE Sanwei1(1 School of Resource and Environmental Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | Based on the study of the existing CA-based fire spreading model,we propose the concept of cellular-scope which summarized cellular self-attributes and external influences by the concept of scope as a whole,and give a more comprehensive interpretation of the factors for fire spreading.Compared to the traditional model,a fire spreading model which is based on cellular-scope give a full consideration of the fire factors including not only the properties of center cellular such as the type of combustible mater... |
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| Keywords: | cellular-scope map algebra CA fire spreading model DEM |
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