海河“23·7”流域性特大洪水防御蓄滞洪区运用关键技术

Key technologies in flood storage area for defense of“July 23”catastrophic floods in the Haihe River Basin

2023年,受第5号台风“杜苏芮”残余环流北上与冷空气共同影响,海河全流域出现强降雨过程,发生流域性特大洪水。水利部门及时调度启用8处蓄滞洪区防御洪水,为支撑蓄滞洪区科学合理安全运用,基于洪水风险图成果、多源遥感监测数据等,水利部防洪抗旱减灾工程技术研究中心(水旱灾害防御中心)快速搭建了8处蓄滞洪区一、二维耦合水动力模型,并依托自主研发的水利遥感应急监测系统平台,开展了蓄滞洪区淹没全过程遥感监测与洪水演进分析,相关成果为水利部及水利部海河水利委员会、河北省水利厅、天津市水务局等指导蓄滞洪区运用提供科学依据,总结应用实践中存在的问题并提出措施建议。

In 2023,under the joint influence of the residual circulation of the Typhoon No.5 Doksuri northward and cold air,heavy rainfalls swept throughout the Haihe River Basin,resulting in catastrophic floods.In response,Ministry of Water Resources opened up 8 flood storage and detention areas in a timely manner.In order to make scientific,rational and safe use of these flood detention basins,the Research Center for Flood Control,Drought Relief and Disaster Reduction Engineering of the Ministry of Water Resources(Water and Drought Disaster Prevention Center)established eight coupled hydrodynamic models of flood detention basins,and developed an emergency platform with remote-sensing monitoring system.The entire process of inundation of flood detention basins and evolution of floods were evaluated.The outcomes provide scientific basis for regulation of flood detention basins and decision making of the Ministry of Water Resources,Haihe Water Resources Commission,Hebei Provincial Water Resources Department and Tianjin Water Authority.Suggestions are made based on examination of issues in practice.