兰州市暴雨特征分析及其强度计算(英文)

Analysis of Features and Intensity of Rainstorm in Lanzhou District

根据城市暴雨历时短、重现期低的特征 ,结合兰州市近 40年来自记录降水资料 ,探讨了在城市暴雨强度计算过程中的几种方法及其相互关系 .在以频率指数分布曲线和超定非线性电算解法的基础上 ,推求了兰州市暴雨强度计算公式 。

According to the rainfall data of recently 40 years and features of short-durat ion and infrequent recurrence of rainstorm in Lanzhou district.This paper discus ses several sampling methods and their relationships in the analysis of intensit y of urban rainstorm. On the basis of the exponential distribution of the ra instorm frequency and nonlinear method for the super-standard amount equation, the calculating formula of rainstorm intensity in Lanzhou district were present ed. As a result, it provided the scientific basis for the municipal c onstruction and urban drainage in Lanzhou district.