我國夏季降水類型初探

[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： 李鸞 LI Luan   作者單位： 南京大學大氣科學系,江蘇南京,210093;安徽省蕪湖市氣象局,安徽蕪湖,241000  刊 名： 農業(yè)科學與技術(英文版)  ISTIC 英文刊名： AGRICULTURAL SCIENCE & TECHNOLOGY  年，卷(期)： 2008 9(1)  分類號： P4  關鍵詞： EOF method   Summer precipitation patterns   Spatial distribution   Temporal distribution   Interannual variability   Interdecadal variability  

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