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《Acta Physica Sinica》 2006-02
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A technique for distinguishing dynamical species in the temperature time series of Yangtze River delta

Feng Guo-Lin~ 1)2) Hou Wei~ 1)2) Dong Wen-Jie~ 2)3) 1)(College of Physics Science and Technology, Yangzhou University, Yangzhou 225009, China)2)(The Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China)3)(Key Laboratory of National Meteorological Bureau Climate Research Center, Beijing 100081,China)  
The conditional entropy of two symbolic sequences which are encoded faithfully from two different time series is minimized at the zero relative shift of the two time series if the two time series have their origins in the same underlying dynamics. This technique is also useful in studying the delayed coupling between different time series. Applications are made to the temperature data derived from five meteorological stations in China, namely Shanghai, Nantong, Changzhou, Nanjing and Hangzhou in order to test the commonality of their underlying dynamics, obtain the relative strength of the dynamics coupling between different variables, and extract the implicit delayed information in the dynamics.
【Fund】: 国家重点发展基础研究项目(批准号:2006CB400503);; 国家自然科学基金(批准号:90411008和40325015)资助的课题.~~
【CateGory Index】: P423.2
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