Journal of Tropical Oceanography ›› 2019, Vol. 38 ›› Issue (1): 35-42.doi: 10.11978/2018037CSTR: 32234.14.2018037

Special Issue: 南海专题

• Marine Meteorology • Previous Articles     Next Articles

Trend analysis of typhoon and storm surge disaster on the South China Sea coast of China

YIN Chengtuan1, 2, ZHANG Jinshan1, 2, XIONG Mengjie1, 2, XU Junhui1, 2   

  1. 1. Nanjing Hydraulic Research Institute, Nanjing 210024, China;
    2. Research Center of Climate Change, Ministry of Water Resources the People's Republic of China, Nanjing 210024, China
  • Received:2018-04-09 Revised:2018-06-29 Online:2019-01-20 Published:2019-01-16
  • Contact: ZHANG Jinshan. E-mail: jszhang@nhri.cn
  • Supported by:
    National Key Research and Development Plan (2018YFC0407503.2016YFC1402000)

Abstract: Based on the analysis of data obtained from the China Meteorological Administration (CMA) (1949-2016) and State Oceanic Administration (SOA) (1989-2016), the trend of tropical cyclone and storm surge disaster along the northern South China Sea was examined in this study. The result indicated that the annual frequency of typhoons had been decreasing slightly but the influence of powerful typhoons and typhoon intensity showed a rising tendency. The frequency of landfall typhoons had experienced significant transformation in the mid-90s. Eastern Guangdong was frequently affected by high-intensity typhoons, and typhoon intensity in western Guangdong had increased year by year since 2007. Typhoon intensity gave the accordant distribution in the four study areas. Four typical paths of storm surge were summarized, and variations of intensity and regional distributions of typhoons with different incidence angle ranges were also analyzed in the study. We found that both the frequency of strong storm surge disaster and the level of annual maximum storm surge had increasing trends along South China coast in recent years.

Key words: typhoon, storm surge, frequency, intensity, angle of incidence