三维GIS的城市暴雨积涝灾害模拟Simulation and analysis of urban storm waterlogging based on 3D GIS
薛丰昌,黄敏敏,唐步兴,钱洪亮,耿焕同
摘要(Abstract)：
针对传统基于二维GIS进行城市暴雨积涝模拟分析不能立体地展现积涝灾害动态演进过程、地物受灾情况的问题,该文提出了基于三维GIS进行城市暴雨积涝灾害模拟分析。该方法综合应用精细化建模与地物拉伸建模技术,通过区域DEM构建、地表路面建模、建筑物建模、地形匹配构建研究区三维模型;以改进的D8算法进行汇水区划分,应用径流系数法进行汇水区产流计算。研究结果表明,该方法能够有效实现三维场景中暴雨积涝积水深度、积水范围计算以及积水深度、受灾房屋、受灾道路可视化表达,为城市暴雨积涝灾害防灾减灾提供技术支撑。
关键词(KeyWords)： 三维GIS;暴雨积涝;模拟
基金项目(Foundation): 江苏省自然科学基金项目(BK20151458);; 江苏省博士后科研基金项目(1101024B);; 中国气象局北京城市气象研究城市气象科学研究基金项目(IUMKY&UMRF201103)
作者(Author): 薛丰昌,黄敏敏,唐步兴,钱洪亮,耿焕同
DOI: 10.16251/j.cnki.1009-2307.2017.02.011
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