摘要
通过对1991—2001年5~9月寸滩(寸滩位于重庆市区以东, 长江干流北岸)逐日08时流量分析和区域洪涝暴雨的成因分析, 得到几点认识: (1)西南地区区域洪涝主要发生在四川盆地, 造成区域洪涝的主要因素是流域底水条件和由暴雨造成的面雨量, 两者缺一不可。(2)西南地区区域洪涝的概念模型可以以不同的寸滩流量条件与不同的间隔天数、不同的流域性降水条件表示, 也可以以第一次区域洪涝出现前、后, 不同的间隔天数与不同的流域性降水条件表示。
Through analyzing the causes of regional flooding storm rainfall and the day-to-day stream amount in Cuntan at 08:00 in May^September from 1991 to 2001, the obtained results are as follow: 1 The regional flooding in Southwest China mainly occurred in Sichuan basin, its main causing is the bottom water condition in the valley and the surface rainfall amount is caused by storm rainfall, and either one should not be absent. 2 The conceptual model for regional flooding in Southwest China is expressed as the different stream conditions with different interval days and basin precipitation in Cuntan, and also expressed as the different interval days before and after the first regional flooding with different basin precipitation conditions.
出处
《高原气象》
CSCD
北大核心
2004年第z1期59-62,共4页
Plateau Meteorology
基金
科技部社会公益专项资金项目(2001DIB20106)
四川省重点科技项目(1999(177))共同资助
关键词
西南地区
区域洪涝
概念模型
Southwest region
Regional flooding
Conceptual model
