拒马河干流典型场次暴雨洪水对比分析
Comparison and analysis of typical rainstorm floods in the main stream of Juma River Basin
于海柱 1季明锋 1苟璐峰 1龚义新1
作者信息
摘要
为了明确拒马河干流典型场次暴雨洪水情况,通过研究拒马河流域紫荆关和张坊的水文数据,结合相关气象背景资料,从降雨和洪水两方面对"7·21"和"23·7"暴雨洪水特征进行对比分析,结果表明:因"7·21"和"23·7"降雨特点不同,导致拒马河流域洪水呈现出不同的特点;2场降雨中紫荆关—张坊区间产流量均高于紫荆关上游流域;受降雨时空分布差异影响,"7·21"洪水中紫荆关和张坊断面流量过程均呈现单峰形状,"23·7"洪水中两站则呈现多峰形状,且"7·21"洪水涨落速度快于"23·7"洪水.此研究为今后更好开展拒马河流域水旱灾害防御工作提供参考.
Abstract
In order to clarify the typical rainstorm flood situation of the main stream of the Juma River,by analyzing the hydrological data of Zijingguan and Zhangfang in Juma River Basin,combined with the rele-vant meteorological background data,the characteristics of"7·21"and"23·7"rainstorm floods were com-pared and analyzed from two aspects of rainfall and flood.The results showed that because of the different rainfall characteristics of"7·21"and"23·7",the flood in the Juma River basin showed different charac-teristics.The runoff yield in Zijingguan-Zhangfang interval was higher than that in the upper reaches of Zi-jingguan.Affected by the difference in spatial and temporal distribution of rainfall,the flow processes of Zi-jingguan and Zhangfang sections in the"7·21"flood showed a single peak shape,while the two stations in the"23·7"flood showed a multi-peak shape,and the fluctuation speed of the"7·21"flood was faster than that of the"23·7"flood.This study provides reference for better flood and drought disaster prevention in the Juma River basin in the future.
关键词
大清河/"7·21"暴雨/"23·7"暴雨/洪水/拒马河/张坊/紫荆关Key words
Daqing River/"7·21"rainstorm/"23·7"rainstorm/flood/Juma River/Zhangfang/Zijingguan引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据