北京水务Issue(1)：31-36,6.DOI:10.19671/j.1673-4637.2025.01.006
北京市"23·7"特大洪水水文测报应对分析与对策研究
Analysis and countermeasures of hydrological monitoring and forecasting in the Beijing"23·7"extraordinary flood
赵小伟 1季明锋 1唐东升 1范强 1曾萌 1刘婷婷 1梁世强 1杨国军1
作者信息
摘要
Abstract
Beijing experienced a rare and extreme rainfall event from July 29 to August 2,2023,influ-encing by Typhoon Doksuri.To enhance hydrological forecasting capabilities,this study conducted an analysis through on-site investigations,rainfall statistics,and hydrological inversion methods.The re-sults revealed that the"23·7"heavy rainstorm exhibited distinct phases,with hourly rainfall exceeding 20 mm for 52 hours,accounting for more than 60％of the total rainfall duration.Major rivers and tribu-taries,including the Yongding,Dashi,and Juma Rivers,experienced historical floods simultaneously.A total of 127 hydrological facilities were damaged to some degrees,highlighting issues with monitoring coverage,flood resistance,infrastructure,data sharing,and emergency response capabilities.The main shortcomings of hydrological forecasting were found to be the lack of flood prediction accuracy and in-sufficient lead time.The primary strategies for improving hydrological forecasting included enhancing the"three-line defense"system for rainfall monitoring and forecasting,and incorporating new hydrologi-cal technologies and equipment.关键词
"23·7"特大洪水/水文测报/三道防线/北京Key words
"23·7"extraordinary flood/hydrological monitoring and forecast/three lines of defense/Beijing分类
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赵小伟,季明锋,唐东升,范强,曾萌,刘婷婷,梁世强,杨国军..北京市"23·7"特大洪水水文测报应对分析与对策研究[J].北京水务,2025,(1):31-36,6.
