灾害学2025，Vol.40Issue(2)：65-70,6.DOI:10.3969/j.issn.1000-811X.2025.02.010
基于多源信息融合的超大城市极端暴雨易涝区识别
Identification of Extreme Rainstorm Waterlogged-prone Area in Megacities Based on Multi-source Information Fusion
摘要
Abstract
The spatial and temporal nonlinearity of extreme rainstorms and the spatial heterogeneity of the urban subsurface have led to the complexity of urban flooding mechanisms,and the identification of flood-prone zones of ex-treme rainstorms in megacities has always been a difficult problem that needs to be solved urgently.Traditional methods quantify the flooding impact indicators from a multi-factor perspective,lacking hydrodynamic and multi-source data support.Currently,the three urban defense commands are mainly based on urban construction design and planning and historical flooding disasters to identify flood-prone areas and high-risk zones.The rapid changes in the develop-ment pattern of megacities and the complexity of elements,as well as the lack of historical disaster data in newly built urban areas,have led to inaccurate identification of flood-prone areas.In this paper,on the basis of summarizing the flooding mechanism and influencing factors in megacities,a method for identifying flood-prone areas in megacities with extreme rainstorms is developed based on the fusion of multi-source information,carrying out real-time simula-tion of yield and sink flow and assessment of drainage capacity from the layers of multi-source data,model mechanism,model parameters,and simulation computation.The identification of flood-prone areas at a large scale is realized,which helps the three defense departments at all levels to make emergency preparations in advance and proactively re-spond to extreme scenarios of urban flooding.关键词
内涝灾害/超大城市/多源信息融合/易涝区/极端暴雨Key words
waterlogging hazards/megacities/multi-source information fusion/waterlogged-prone areas/ex-treme rainstorms分类
资源环境引用本文复制引用
张宗嘉,胡泽安,刘琪玉,赖洁蓉,田林灵,崔文惠,杨丽丽,郭君..基于多源信息融合的超大城市极端暴雨易涝区识别[J].灾害学,2025,40(2):65-70,6.基金项目
广东省哲学社会科学规划项目"极端暴雨事件下城市内涝风险识别预测及多部门协同应急调度研究"(GD24YGL23) （GD24YGL23）
深圳市城市公共安全技术研究院有限公司城市安全风险监测预警应急管理部重点实验室开放基金课题"基于图卷积神经网络的洪涝灾害图谱研究"(SIUPS2024A005) （SIUPS2024A005）
国家自然科学基金青年项目"社交媒体多模态下重大突发事件危机传播的公众参与行为及政府沟通策略研究"(72104089) （72104089）
广州市哲学社会科学发展"十三五"规划2020年度课题"短视频爆热下粤港澳大湾区台风灾情研判与舆情治理研究"(2020GZGJ43) （2020GZGJ43）
