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Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts

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タイトル: Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts
著者: Minobe, Shoshiro 著作を一覧する
発行日: 1999年 4月 1日
出版者: American Geophysical Union
誌名: Geophysical Research Letters
巻: 26
号: 7
開始ページ: 855
終了ページ: 858
出版社 DOI: 10.1029/1999GL900119
抄録: The roles of interdecadal oscillations in climatic regime shifts, which are observed as rapid strength changes in the Aleutian low in winter and spring seasons, have been analyzed. A regime shift results from simultaneous phase reversals between pentadecadal and bidecadal variations, which synchronize with one another at a relative period of three. The pentadecadal variation, which is observed in both winter and spring seasons, provides the basic timescale of regime shifts, while the bidecadal variation, which is observed only in winter, characterizes the rapidity of the shifts. A Monte-Carlo simulation has shown that the simultaneous phase reversals or resonance between the pentadecadal and bidecadal variations reflect a physical linkage between them and do not coincide accidentally. The role of this synchronization feature for assessing and predicting regime shifts is discussed.
Rights: An edited version of this paper was published by AGU. Copyright 1999 American Geophysical Union.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/21813
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 見延 庄士郎

 

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