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长江三峡区间暴雨洪水分析
引用本文:张有芷,张少婕,王政祥.长江三峡区间暴雨洪水分析[J].人民长江,1999,30(3):11-13.
作者姓名:张有芷  张少婕  王政祥
作者单位:长江水利委员会水文局水文水资源处
摘    要:利用1965~1989年三峡区间34个雨量站逐日降水量资料,计算了区间逐年的面暴雨和洪水,初步揭示了区间暴雨洪水的基本特征。指出三峡区是长江流域多暴雨区之一,平均情况下了7月和9月,暴雨出现机会较基他月份多。三峡区间年最大洪峰出现在5-9月,约有1/3的区间洪水可与万县洪水遭遇,区间洪水可使宜昌流量增加,还计算了24h,3d区间面暴雨及洪水的频率,为三峡工程二期围堰安全度汛和施工安排,提供了三峡区

关 键 词:暴雨洪水  自然地理  洪水频率  洪水特性  三峡

Storm flood in Three Gorges intervening area of Yangtze River
Zhang Youzhi,ZHANG Shaojie,Wang Zhengxiang.Storm flood in Three Gorges intervening area of Yangtze River[J].Yangtze River,1999,30(3):11-13.
Authors:Zhang Youzhi  ZHANG Shaojie  Wang Zhengxiang
Affiliation:Zhang Youzhi\ Zhang Shaojie\ Wang Zhengxiang
Abstract:By use of daily precipitation data at 34 rainfall stations in Three Gorges intervening area in 1965 through 1989, the corresponding every-year areal mean storms, and floods are calculated, and the results reveal basic characteristics of the storm flood. Three Gorges intervening area is one of storm prone areas in the Yangtze valley, with storm often occurring in July and September on an average. Annual maximum intervening flood peak occurs in May through September. Some one third of intervening flood events could meet with above-Wanxian flood events. The intervening flood could increase the discharge at Yichang station by several thousands or more than ten thousands cubic metres per second. For providing information of storm flood in Three Gorges intervening area for the safety of TGP second stage cofferdams and TGP construction scheduling, 24-hour and 3-day areal intervening storms and intervening flood frequencies are also calculated.
Keywords:Storm flood \ Physical geography\ Flood frequency \ Flood characteristic\ Sanxia  
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