Journal of Marine Sciences ›› 2014, Vol. 32 ›› Issue (1): 19-30.DOI: 10.3969/j.issn.1001-909X.2014.01.003

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Temporal and spatial distribution of local typhoon and non-local typhoon in the South China Sea

CHENG Han1,2, LIANG Chu-jin*1,2, DONG Chang-ming3, LIU Zheng-li4   

  1. 1. State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012,China;
    2. The Second Institute of Oceanography, SOA,Hangzhou 310012, China;
    3. Institute of Geophysics and Planetary Physics, University of California, Los Angeles CA 90095, USA;
    4. Drilling Department, Shenzhen Branch of CNOOC Ltd. , Shenzhen 518067, China
  • Received:2013-06-25 Revised:2013-11-18 Online:2014-03-15 Published:2022-11-25

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Abstract: The best track data of tropical cyclones (TC) for 62 years (1951-2012) obtained from Japan Meteorological Agency (JMA) were used to make an analysis on the temporal and spatial distribution of two kinds of tropical cyclones, i. e. entitled local typhoon and non-local typhoon which have impact on the South China Sea (SCS). The result suggests that local typhoon’s sources are associated with the monsoon period. In summer monsoon, the sources mainly located on the north of 15°N, and in winter monsoon, it moved to the south of 15°N. Compared with non-local typhoon, local typhoon’s activity is broader in space, but weaker in intensity in commonly. In the intensity development process, the time-intensisy curve of local typhoon is almost symmetrical, but that of non-local typhoon is a decline curve. The two kinds of TC’s landing positions are also associated with the monsoon. In summer monsoon, local typhoon and non-local typhoon make landfall more frequently than those in winter monsoon. And in the same latitude, non-local typhoon moves faster than local typhoon.

Key words: SCS, tropical cyclone, local typhoon, non-local typhoon, landfall, monsoon

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