江苏省新沂河流域短历时降水极值统计规律研究  

Study on statistical law of short-term precipitation extreme value in Xinyi River Basin

作　　者：许广东[1] 蒋煜 XU Guangdong;JIANG Yu(Xuzhou Branche of Jiangsu Province Hydrology and Water Resources Investigation Bureau,Xuzhou 221018,China;College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China)

机构地区：[1]江苏省水文水资源勘测局徐州分局,江苏徐州221018 [2]河海大学水文水资源学院,江苏南京210098

出　　处：《江苏水利》2024年第2期38-41,共4页Jiangsu Water Resources

摘　　要：为揭示江苏省新沂河流域短历时降水极值统计规律,以研究区内的10个雨量站1981—2020年历史实测资料为依据,以年最大1 h、3 h、6 h、12 h和24 h降水极值为研究对象,采用Mann-Kendall检验和Morlet小波分析,开展了新沂河流域不同历时面雨量极值趋势性、跳跃性和周期性分析。研究短历时降水极值的统计规律可为地区工程防洪设计与规划提供参考。In order to reveal the statistical laws of short-term precipitation extreme values in the Xinyi River Basin,based on historical measured data from 10 rainfall stations in the study area from 1981 to 2020.The maximum annual precipitation extreme values of 1 hour,3 hours,6 hours,12 hours,and 24 hours were used as the research objects.Mann-Kendall test and Morlet wavelet analysis were used to analyze the trend,jumping,and periodicity of surface precipitation extreme values in different durations in the Xinyi River Basin.Studying the statistical laws of short-term precipitation extremes value can provide reference for flood control design and planning of regional engineering.

关 键 词：新沂河流域 降水趋势 检验分析 

分 类 号：TV125[水利工程—水文学及水资源]