广州市近年降雨时空变化规律分析  

Analysis of Temporal and Spatial Variation of Rainfall in Guangzhou City at Recent Years

作　　者：郑杰元[1] 黄国如[1] 王质军 陈其幸[2] 

机构地区：[1]华南理工大学土木与交通学院.广东广州510640 [2]广东省水文局广州分局,广东广州510150

出　　处：《水电能源科学》2011年第3期5-8,192,共5页Water Resources and Power

基　　金：水利部公益性行业科研专项经费基金资助项目(200801001,200801033);华南理工大学中央高校基本科研业务费专项基金资助项目(2009ZM0051,2009ZM0044)

摘　　要：受全球气温上升影响,广州市区水文要素出现了明显的变化。为揭示广州市降雨时空变化趋势,采用Mann-Kendall检验法从不同方面分析了降雨时间序列的演变规律,可知市区年降雨量逐年增加,暴雨中心由市郊向市中心转移,降雨时段更为集中。并采用不均匀系数结合Mann-Kendall检验法分析了降雨的时空分布及其变化趋势,发现广州市降雨量年内分配不平衡,且降雨空间分布不均匀。The hydrological factors in Guangzhou City are obviously changed by the effect of global air temperature rising in recent years.In order to reveal the variation trend of rainfall factors in Guangzhou City,the Mann-Kendall test method is used to analyze the variation trend of rainfall time series.The results show that annual rainfall in urban region is gradual increased,and the storm center is transformed from the suburban region into in the urban center and rainfall duration is more concentrated.The temporal and spatial distribution of rainfall and its variation trend are studied with asymmetrical factor method and Mann-Kendall test method,which is found that the annual distribution of rainfall is asymmetrical and the spatial distribution of rainfall is also non-uniform.

关 键 词：广州市 降雨时空变化规律 Mann-Kendall检验法 不均匀系数法 

分 类 号：TV125[水利工程—水文学及水资源] P426.13[天文地球—大气科学及气象学]