南水北调与水利科技2012，Vol.10Issue(1)：49-54,6.DOI:10.3724/SP.J.1201.2012.01049
近55年珠江上游流域降水演变规律
Analysis of Spatial and Temporal Precipitation Variations for the Upstream of Pearl River Basin during the Past 55 Years
摘要
Abstract
The linear regression,5-year moving average,Mann-Kendall test,and wavelet analysis method were used to analyze the precipitation variations from 1954 to 2008 for the upstream of the Pearl River basin. The results showed that the annual precipitation has an insignificant trend in the recent 55 years. Seasonal and monthly precipitation also showed insignificant trends,except for January which has a significant increasing trend. The insignificant trends were also found for annual and seasonal precipitation of all the weather stations in the Pearl river basin. The annual precipitation had a significantly abrupt change in 1963 whereas there were no abrupt changes for seasonal and monthly precipitation. The annual and seasonal precipitation had the similar time scales of phase change,and both of them showed variations over years关键词
Mann-Kendall检验/Morlet小波分析/珠江/降水Key words
Mann-Kendall test/ Morlet wavelet analysis/ Pearl river basin/ precipitation分类
建筑与水利引用本文复制引用
张峰,雷晓辉,蒋云钟,白建锋..近55年珠江上游流域降水演变规律[J].南水北调与水利科技,2012,10(1):49-54,6.基金项目
国家自然科学基金创新研究群体基金项目(51021006) （51021006）
