| 基于空间网格和AHP熵值法的武汉内涝风险评估 |
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| 引用本文： | 唐海吉,李英冰,张岩. 基于空间网格和AHP熵值法的武汉内涝风险评估[J]. 城市勘测, 2021, 0(2): 18-23,28. DOI: 10.3969/j.issn.1672-8262.2021.02.003 |
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| 作者姓名： | 唐海吉 李英冰 张岩 |
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| 作者单位： | 武汉大学测绘学院,湖北 武汉 430079;武汉大学测绘遥感信息工程国家重点实验室,湖北 武汉 430079 |
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| 基金项目： | 国家重点研发计划(2018YFC0807000)。 |
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| 摘 要： | 针对我国城市暴雨内涝灾害频发的现象,基于自然灾害风险理论,采用降雨数据、基础地理信息数据、社会经济数据、夜间灯光数据和兴趣点等数据,运用GIS空间分析技术对指标数据进行网格化处理,结合层次分析(Analytic Hierarchy Process,AHP)熵值法,提出针对短期城市暴雨内涝灾害风险评估的过程与方法.以20...
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| 关 键 词： | 暴雨内涝 GIS AHP熵值法 风险评估 武汉市 |
Risk Assessment of Waterlogging Disasters in Wuhan Based on Spatial Gridding and AHP Entropy Method |
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| Tang Haiji,Li Yingbing,Zhang Yan. Risk Assessment of Waterlogging Disasters in Wuhan Based on Spatial Gridding and AHP Entropy Method[J]. Urban Geotechnical Investigation & Surveying, 2021, 0(2): 18-23,28. DOI: 10.3969/j.issn.1672-8262.2021.02.003 |
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| Authors: | Tang Haiji Li Yingbing Zhang Yan |
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| Affiliation: | (School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China) |
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| Abstract: | In order to deal with the frequent occurrence of urban rainstorm waterlogging disasters in China,this study presents a methodology for building a risk assessment model of short term rainstorm and waterlogging disasters,based on GIS spatial gridding technique and AHP-entropy method.By using weather data,geographic information data,socio-economic data,nightlight data and points of interest,the model is built on the basis of the theory of natural disaster risk.The rainstorm and waterlogging disasters in Wuhan on July 6,2016 was taken as an example and a risk map of that day was drawn.The results show that the high risk regions of rainstorm and waterlogging disasters locate in Jiangan,Jianghan,Qiaokou,Hanyang,Wuchang District and southwestern Hongshan District,while the low risk regions are Qingshan District and eastern Hongshan District.By displaying the waterlogging points on the risk division map,it is found that about 90%of waterlogging points locate in high risk regions,which shows that the results are in good agreement with the actual data. |
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| Keywords: | rainstorm and waterlogging GIS AHP entropy method risk assessment Wuhan City |
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