我国夏季降水类型初探

我国夏季降水类型初探

[Objective]Study on the spatial distribution of summer precipitation patterns and interannnal and interdacadal variability.[Method]The summer precipitation patterns were obtained from standard field of summer precipitation data for 160 observation stations in China during 1951-2000 by the utilization of empirical orthogonal function(EOF),and characteristics of interannual and interdecadal variability were analyzed.[Result]The summer precipitation mainly distributes in eastern part of China;The Ist,2nd and 3rd EOF modes of spatial distribution are especially remarkable as well consistent with the results of previous reports about three rainfall patterns from analysis on the percentages of precipitation anomaly of summer.[Conclusion]There exists interannnal and interdecadal variability for summer precipitation in China.

作 者： 李鸾 LI Luan   作者单位： 南京大学大气科学系,江苏南京,210093;安徽省芜湖市气象局,安徽芜湖,241000  刊 名： 农业科学与技术(英文版)  ISTIC 英文刊名： AGRICULTURAL SCIENCE & TECHNOLOGY  年，卷(期)： 2008 9(1)  分类号： P4  关键词： EOF method   Summer precipitation patterns   Spatial distribution   Temporal distribution   Interannual variability   Interdecadal variability  

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