EFFECT OF TROPICAL CYCLONE HORIZONTAL SCALE ON ITS MOTION
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    Abstract:

    The effect of tropical cyclone horizontal scale on its motion is investigated in a nondivergent, barotropic model with no basic flow. The tropical cyclone whose horizontal scale is smaller (larger) moves toward the northwest by north (the northwest by west). The asymmetric flow of the smaller (larger) tropical cyclone causes the large scale beta gyres to countercloockwise rotate a smaller (larger) angle αl. The moving direction of tropical cyclone θc is related to the angle αl,i.e., θc≈360°-αl. Therefore, the moving direction of tropical cyclone counterclockwise deflects to the west with the increasing of horizontal scale.

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田永祥,赵远东,江燕如,1998.热带气旋的水平尺度对其移动的影响[J].大气科学学报,21(3):411-417.
Tian Yongxiang, Zhao Yuandong, Jiang Yanru,1998. EFFECT OF TROPICAL CYCLONE HORIZONTAL SCALE ON ITS MOTION[J]. Trans Atmos Sci,21(3):411-417.

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History
  • Received:September 30,1997
  • Revised:March 14,1998
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