气象水文模型耦合的郑州城区内涝预警研究  

Research on the Meteorological and Hydrological Coupling Models on Early Warning of Urban Waterlogging in Zhengzhou

作　　者：郭元 李玉玲[1] 王慧亮[1] 胡钰鑫 GUO Yuan;LI Yuling;WANG Huiliang;HU Yuxin(School of Water Conservancy and Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学水利科学与工程学院,河南郑州450001

出　　处：《水文》2022年第4期61-67,共7页Journal of China Hydrology

基　　金：国家自然科学基金资助项目(51739009)。

摘　　要：随着城市化进程不断加剧,地区气候、下垫面等因素发生变化导致城市内涝频发。水文模型预见期有限,气象预报难以明确洪涝对城市的影响,因此构建WRF-SWMM气象水文耦合模型对地区洪涝进行预警预报。通过对郑州城区多场暴雨内涝事件和7·20极端降水事件的模拟分析验证了气象水文耦合模型在郑州城区进行洪水预报的可行性和合理性。结果表明:WRF模式耦合UMC城市冠层方案模拟的降水过程与实测降水过程更接近,可提前6~8h生成降水预报;基于WRF-SWMM耦合模型可以预测出城市洪涝灾害的洪水过程和量级,生成有效的洪水预报,为城市地区防洪排涝和减灾救灾提供参考。With the continuous of urbanization,regional climate change,underlying surface variation and other factors lead to frequent occur⁃rence of urban waterlogging,which limited the forecast lead time.It is difficult for meteorological forecast to clarify the impact of flood on cit⁃ies.Therefore,the WRF-SWMM meteorological and hydrological coupled model was constructed to provide early warning and forecast of re⁃gional flood.The feasibility and rationality of the coupled model for flood prediction in Zhengzhou city were verified by the simulating several rainstorm and waterlogging events and the 7·20 extreme precipitation event.The results show that precipitation process,which generated 6-8 hours by WRF model in advance,which is closer to measured data when with the UMC urban canopy scheme.Based on WRF-SWMM cou⁃pling model,the magnitude and process of urban flood disaster could be predicted,more effective flood information could be forecasted,and more efficiency reference were provided for flood control,drainage and social rescue in urban areas.

关 键 词：WRF模式 SWMM模型 气象水文耦合模型 郑州 城市内涝 

分 类 号：TV125[水利工程—水文学及水资源]