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Volume 16 Issue 1

Jan.  1999

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Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 1999 >  16(1): 64-76

Numerical Simulations on the Explosive Cyclogenesis over the Kuroshio Current

  • 1.

    Agrometeorology Institute, Chinese Academy of Agricultural Sciences, Beijing 100081,National Research Center far Marine Environment Forecast, Beijing 100081


doi: 10.1007/s00376-999-0004-5

  • In this paper, the Pennsylvania State University-NCAR Mesoscale Model (MM4) is used to investigate the explosive oceanic cyclone of 14-15 March 1988 over the warm Kuroshio Current. A series of numerical simulations on this cyclogenesis indicates that the favorable weather condi-tions and strong baroclinity in the low- and middle-level are essential to its explosive development. The explosive cyclogenesis occurred over a wide range of sea surface temperatures (SST’s), which was then characterized by strong baroclinity, the low-level jet (LLJ) was initially formed under the favorable atmospheric circulation and then this LLJ advected the moisture and heat northward for the explosive development of the cyclone, the LLJ played an important role in the process of cyclogenesis. Sensitivity experiments show that the latent heating was a key factor to explosive cyclogenesis, the latent heating deepened the short-wave trough, which resulted in the rapid intensification of the cyclone; while in the explosive intensification stage and continuous de-velopment stage, there was less contribution of local surface processes for the explosion of the cy?clone.
  • [1] ZHAI Fangguo, WANG Qingye, WANG Fujun, Hu Dunxin, 2014: Variation of the North Equatorial Current, Mindanao Current, and Kuroshio Current in a High-Resolution Data Assimilation during 20082012, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 1445-1459.  doi: 10.1007/s00376-014-3241-1
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    [7] Yang Fanglin, Yuan Chongguang, 1993: Numerical Simulation of Regional Short-Range Climate Anomalies, ADVANCES IN ATMOSPHERIC SCIENCES, 10, 335-344.  doi: 10.1007/BF02658139
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    • Manuscript History

    Manuscript received: 10 January 1999
    Manuscript revised: 10 January 1999
    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

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    Numerical Simulations on the Explosive Cyclogenesis over the Kuroshio Current

    • 1. Agrometeorology Institute, Chinese Academy of Agricultural Sciences, Beijing 100081,National Research Center far Marine Environment Forecast, Beijing 100081
    • Manuscript received: 1999-01-10
    • Manuscript revised: 1999-01-10

    Abstract: In this paper, the Pennsylvania State University-NCAR Mesoscale Model (MM4) is used to investigate the explosive oceanic cyclone of 14-15 March 1988 over the warm Kuroshio Current. A series of numerical simulations on this cyclogenesis indicates that the favorable weather condi-tions and strong baroclinity in the low- and middle-level are essential to its explosive development. The explosive cyclogenesis occurred over a wide range of sea surface temperatures (SST’s), which was then characterized by strong baroclinity, the low-level jet (LLJ) was initially formed under the favorable atmospheric circulation and then this LLJ advected the moisture and heat northward for the explosive development of the cyclone, the LLJ played an important role in the process of cyclogenesis. Sensitivity experiments show that the latent heating was a key factor to explosive cyclogenesis, the latent heating deepened the short-wave trough, which resulted in the rapid intensification of the cyclone; while in the explosive intensification stage and continuous de-velopment stage, there was less contribution of local surface processes for the explosion of the cy?clone.

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