半个世纪以来长江中下游降水的时空分析  

Spatial-temporal analysis of precipitation at the middle or lower reaches of the Yangtze River near half century

作　　者：吴宜进[1] 朱爱琴[1] 许莉莉[1] 

机构地区：[1]华中师范大学城市与环境科学学院,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2011年第2期299-303,共5页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金青年基金资助项目(41001126)

摘　　要：利用长江中下游89个气象站1958年～2009年逐日降水资料,采用EOF、REOF和小波分析等方法,分析该区域降水的时空变化特征.结果表明:过去52年来,长江中下游地区年降水量主要有3种典型的空间振荡型,存在6个典型的降水变化敏感区域.各区域均有6年左右的准周期变化.By using the daily precipitation data of 89 stations in the middle and lower reaches of Yangtze River during the 1958-2009, by means of EOF, REOF, and wavelet analysis method, anglicizing the spatial distribution characteristics of precipitation and time scale of complex structure analysis. The results show that the middle and lower reaches of Yangtze river precipitation mainly have three typical space types and six typical sensitive regions on rainfall change. And all regions have six-year cycle.

关 键 词：长江中下游 年降水 时空分布 小波分析 

分 类 号：P426.6[天文地球—大气科学及气象学]