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《Scientia Meteorologica Sinica》 2004-02
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DETRENDED FLUCTUATION ANALYSIS OF MONTHLY TEMPERATURE ANOMALY OVER CHINA DURING THE RECENT 100 YEARS

Jiang Tianghan (Department of Environmental Sciences,Peking University,Beijing 100871)  
To study the specific law and the scale range of long-range correlation,series of average monthly anomaly over China from Jan. 1873 to Nov.1990 is analyzed with the detrended fluctuation analysis. The preliminary results show as follows. Firstly,there exists the long-range correlation in the average monthly temperature fluctuations. Secondly,the temperature fluctuations can be characterized by a long-range power-law correlation with an exponent =0.66.Thirdly,the scale of 18 years can not be regarded as a crossover for the limit of the length of the series,though the exponent at large scale of more than 18 years is different from that of less than 18 years.
【Fund】: 国家气象中心自建项目ZK2 0 0 2ASZ 0 7资助
【CateGory Index】: P467
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