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Article >  Journal of Tropical Meteorology  > 2001 >  7(1): 80-85

DEVELOPING AND NON-DEVELOPING TROPICAL CYCLONES AS REVEALED BY HIGH DENSITY CLOUD MOTION WINDS

  • National Satellite Meteorological Center

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  • An algorithm for computation of cloud motion winds has been developed at the National Satellite Meteorological Center in China. Since 1997, it has been applied to calculate the cloud motion winds for a 1.25 lat. 1.25 long. mesh over the northwest Pacific region with the satellite data from GMS-5. The development of the tropical cyclones is studied. It shows that the tropical cyclone is usually intrigued by the westerly jet streams at the upper levels of the troposphere, which may be caused by mid-latitude troughs well extending into the tropics. During the prime season of summer, the westerly flowing equatorward of the TUTT may also be a cause for the generation of typhoons.
  • [1] CHARNEY J G, ELIASSEN A. On the growth of the hurricane depression [J]. Journal of Atmospheric Sciences,1964, 21: 68-75.
    [2] GRAY W M. Global view of the origin of tropical disturbances and storms [J]. Monthly Weather Review,1968, 96: 669-698.
    [3] HOLLAND J G. Angular momentum transports in tropical cyclones [J]. Quarterly Journal of Royal MeteorologicalSociety, 1983, 109: 187-209.
    [4] SADLER J C. A role of the tropical upper tropospheric trough in early season typhoon development [J].Monthly Weather Review, 1976, 104: 1266-1278.
    [5] XU Jian-min, ZHANG Qisong. Cloud motion winds from FY-2 and GMS-5 meteorological satellite [A]. Thethird international winds workshop [C]. 1996, 45-52.
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FANG Xiang, XU Jian-min, ZHANG Qi-song. DEVELOPING AND NON-DEVELOPING TROPICAL CYCLONES AS REVEALED BY HIGH DENSITY CLOUD MOTION WINDS [J]. Journal of Tropical Meteorology, 2001, 7(1): 80-85.
FANG Xiang, XU Jian-min, ZHANG Qi-song. DEVELOPING AND NON-DEVELOPING TROPICAL CYCLONES AS REVEALED BY HIGH DENSITY CLOUD MOTION WINDS [J]. Journal of Tropical Meteorology, 2001, 7(1): 80-85.
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    DEVELOPING AND NON-DEVELOPING TROPICAL CYCLONES AS REVEALED BY HIGH DENSITY CLOUD MOTION WINDS

    • National Satellite Meteorological Center

    Abstract: An algorithm for computation of cloud motion winds has been developed at the National Satellite Meteorological Center in China. Since 1997, it has been applied to calculate the cloud motion winds for a 1.25 lat. 1.25 long. mesh over the northwest Pacific region with the satellite data from GMS-5. The development of the tropical cyclones is studied. It shows that the tropical cyclone is usually intrigued by the westerly jet streams at the upper levels of the troposphere, which may be caused by mid-latitude troughs well extending into the tropics. During the prime season of summer, the westerly flowing equatorward of the TUTT may also be a cause for the generation of typhoons.

    FANG Xiang, XU Jian-min, ZHANG Qi-song. DEVELOPING AND NON-DEVELOPING TROPICAL CYCLONES AS REVEALED BY HIGH DENSITY CLOUD MOTION WINDS [J]. Journal of Tropical Meteorology, 2001, 7(1): 80-85.
    Citation: FANG Xiang, XU Jian-min, ZHANG Qi-song. DEVELOPING AND NON-DEVELOPING TROPICAL CYCLONES AS REVEALED BY HIGH DENSITY CLOUD MOTION WINDS [J]. Journal of Tropical Meteorology, 2001, 7(1): 80-85.
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