Hierarchical structures in climate and atmospheric turbulence

查看全文 作　　者：SHE Zhensu, FU Zuntao, CHEN Jiong, LIANG Shuang and LIU Shida(1. State Key Laboratory for Studies of Turbulence and Complex Systems, Department of Mechanics and Engineering Sciences, Peking University, Beijing 100871, China;2. School of Physics, Peking University, Beijing 100871, China;3. LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China)

出　　处：《Progress in Natural Science:Materials International》索引2002年第12卷第10期,共6页

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 49975024 and 40035010) ; the Major State Basic Research Development Program of China (Grant No. G1998040900) 摘　　要：The climatic time series encompass many time scales, forming multi-scale climatic variations and hierarchies. The periods and magnitudes of cooling or warming, especially for extreme climatic events, vary with the time scales. On the other hand, high-frequency atmospheric turbulent motions, which are certainly related to the climatic changes, are also typical multi-scale phenomena. In this paper, certain properties of the fluctuations are examined that are invariant with the change of the time scales. Specifically, the existence of a statistical similarity law is demonstrated in climatic time series and in atmospheric turbulent motions. This is the hierarchical similarity law. Further analyses show that the hierarchical similarity law is a general property of multi-scale fluctuation systems. Therefore, the study on the hierarchical similarity law is important for understanding the inherent universal physical mechanism of complex systems in the atmospheric motions. 关键词：climate, multi-scale, HIERARCHICAL structure, ATMOSPHERIC turbulence.

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Hierarchical structures in climate and atmospheric turbulence

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