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Article >  Journal of Tropical Meteorology  > 1996 >  2(1): 1-11

INNER AND OUTER STRUCTURES OF TROPICAL CYCLONE Ⅱ. BAROCLINIC MODEL

  • Department of Geophysics, Peking University, Bniversity, Beijing 100871

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  • A tropical cyclone is divided into inner and outer regions in which temporal and spacial scales and physical quantities are all different.Making use of the scale analysis and perturbation methods the gov-erning equations of barotropic and baroclinic models are obtained for the two regions, respectively.In the two models the stream and presure fields are solved analytically and the obtained structures are ap- proximately consistent with observations.It is shown that there are different governing equations for the inner and outer regions of the tropical cyclone.The inner region is governed by the cyclostrophic wind and an evolution equation, the outer region by the gradient wind and another evolution equation.
  • [1] Ling Guocan, Li Xianlin, 1986. Inner structure solution to geostrophic vortexes. J. Mechanics,18: 289-296 (in Chinese).
    [2] Liu Shikuo, Liu Shida, 1995. Inner and outer structures of tropical cyclone L. Barotropic model.J. Tropical Meteorology. 1:1-11.
    [3] Liu Shikuo, Yang Dasheng, 1980. Spiral structure of the tropical cyclone. J. Meteo.,38: 193-204 (in Chinese).
    [4] Peng M S, Williams R T. 1990. Dynamics of vortex asymmetries and their influence on vortex motion on a β-plane,J. Almos. Sci. 47:1687-2003.
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Liu Shikuo, Liu Shida. INNER AND OUTER STRUCTURES OF TROPICAL CYCLONE Ⅱ. BAROCLINIC MODEL [J]. Journal of Tropical Meteorology, 1996, 2(1): 1-11.
Liu Shikuo, Liu Shida. INNER AND OUTER STRUCTURES OF TROPICAL CYCLONE Ⅱ. BAROCLINIC MODEL [J]. Journal of Tropical Meteorology, 1996, 2(1): 1-11.
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    • Manuscript History

    Manuscript received: 02 August 1993
    Manuscript revised: 16 October 1993
    通讯作者: 陈斌, bchen63@163.com
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    INNER AND OUTER STRUCTURES OF TROPICAL CYCLONE Ⅱ. BAROCLINIC MODEL

    • Department of Geophysics, Peking University, Bniversity, Beijing 100871
    • Received Date: 1993-08-02
    • Rev Recd Date: 1993-10-16

    Abstract: A tropical cyclone is divided into inner and outer regions in which temporal and spacial scales and physical quantities are all different.Making use of the scale analysis and perturbation methods the gov-erning equations of barotropic and baroclinic models are obtained for the two regions, respectively.In the two models the stream and presure fields are solved analytically and the obtained structures are ap- proximately consistent with observations.It is shown that there are different governing equations for the inner and outer regions of the tropical cyclone.The inner region is governed by the cyclostrophic wind and an evolution equation, the outer region by the gradient wind and another evolution equation.

    Liu Shikuo, Liu Shida. INNER AND OUTER STRUCTURES OF TROPICAL CYCLONE Ⅱ. BAROCLINIC MODEL [J]. Journal of Tropical Meteorology, 1996, 2(1): 1-11.
    Citation: Liu Shikuo, Liu Shida. INNER AND OUTER STRUCTURES OF TROPICAL CYCLONE Ⅱ. BAROCLINIC MODEL [J]. Journal of Tropical Meteorology, 1996, 2(1): 1-11.
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