降雨特性的研究—N维对数正态联合分布

A Study on Rainfall Characteristics——N-Dimension Log-normal Joint Distribution

本文对降雨的年际变化特性在文献[1]的基础上,从理论上和实验上作了进一步地研究。文中首先利用n维正态分布的特征函数计算了n维对数正态联合分布的数字特征。然后就对数正态分布的相关性进行了讨论。最后将n维对数正态联合分布应用于降雨这一随机过程中,并给出了实验结果和分析。

The year-to-year rainfall variation characteristics has been investigated in terms of theory and experiment.This is a further study of our previous work.Firsty, we calulate the digital characteristics of N-dimension log-normal joint distribution by using charateristic function of normal distribution. Then, the correlation of log-normal distribution is discussed.Also we apply the N-dimension log-normal joint distribution into the rainfall random process and obtained some experiment results.