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《Journal of Nanjing Institute of Meteorology》 2004-01
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Climatic Characteristics of 116-Year Mei-yu Rainfall in the Mid-lower Reaches of the Changjiang River

CHEN Yi-min,QIAN Yong-fu (Department of Atmospheric Sciences,Nanjing University,Nanjing210093,China)  
Using EOF decomposition,cluster analysis and correlation analysis,116-year annual mei-yu data of five stations in the mid-lower reaches of the Changjiang river are examined.Results show that the five stations data can represent typical mei-yu characteristics in this region.According to the relation between mei-yu rainfall and pentad rainfall,the 116-year mei-yu rainfall-concentrated periods are analyzed.The four different mei-yu parameters' periods are analyzed by Morlet wavelet analysis.Laws of interannual and interdecadal variations and characteristics of trends are found.Climatic jumps are tested by the moving t-test.
【Fund】: 国家自然科学基金重点资助项目(40175021);; 国家自然科学基金重点资助项目(40233037)
【CateGory Index】: P426.6
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