统计分析法在辽宁省中小河流致洪暴雨临界雨量计算中的应用  

Application of statistical analysis method in the calculation of critical rainfall of flood produced by rainstorms in small and medium rivers in Liaoning Province

作　　者：刘元锋 李书博 LIU Yuanfeng;LI Shubo(Shenyang Branch of Liaoning Water Resources and Hydropower Research Institute Co.,Ltd.,Shenyang 110003)

机构地区：[1]辽宁省水利水电科学研究院有限责任公司沈阳分公司,沈阳110003

出　　处：《中国防汛抗旱》2023年第1期61-66,共6页China Flood & Drought Management

摘　　要：在辽宁省各防汛分区内选取流域面积小于2000 km2的中小河流的22个代表站,结合各代表站时段降雨量和场次洪峰数据,按照5年一遇防洪标准,确定各代表站不同计算时段的雨量预警阈值,并按照防洪分区进行区域综合分析,得到全省不同防洪分区的时段雨量预警指标,该研究成果可为辽宁省中小河流防洪减灾提供决策依据。In the flood control zones of Liaoning Province,there are 22 representative stations of small and mediumsized rivers with catchment area of less than 2000 km2selected.Combined with the period rainfall and site flood peak data of each representative station,the rainfall early warning thresholds of each station in different calculation periods were determined according to the 5-year flood control standard,and regional comprehensive analysis was carried out according to the flood control zones.The rainfall early warning indexes of different flood control zones in Liaoning province were obtained.The research results provide a basis for decision-making of flood management and disaster reduction of small and medium-sized rivers in Liaoning Province.

关 键 词：降水-洪峰流量关系 雨量预警 指标阈值 中小河流 辽宁省 

分 类 号：P333[天文地球—水文科学]