摘要
着重分析甘肃省的暴雨特性与时空分布规律,列举了历年实测和调查最大点暴雨特征值,绘制了短历时暴雨～高程相关线、选配了甘肃最大点暴雨外包线公式,对历年各时段最大暴雨均值、极值、Cv、Cs值等暴雨参数及典型暴雨时程分配和面时关系线等方面作了初步探讨。
Gansu province is located at northwestern interior of China, and most areas belong to arid region with less rainfall, but rainstorm events always occurred with short duration and big intensity characteristics. Moreover the short duration rainstorm created the record in the world events. The rainstorm characteristics and the patterns of time and space distribution are analysed with emphasis.Measured and investigated maximum feature values of rainstorms point over the years are listed, short duration rainstorm regression curves with altitude changes are drawn, and the function of outer and include line of maximum points rainstorm in the Gansu province is selected in the paper. The paper makes the preliminary inquisition of the rainstorm parameter values of mean,extreme, Cv, Cs over the years and the duration distribution and interrelated lines of areas with time change at the typical rainstorms etc.
出处
《干旱气象》
2004年第1期74-79,共6页
Journal of Arid Meteorology
基金
水利部项目"中国暴雨及其参数
等值线图修编".
关键词
暴雨
时空分布
特征值
甘肃
rainstorm
characteristics
Gansu province
