Statistical analysis of intensity variations in tropical cyclones in the East China Sea passing over the Kuroshio


Intensity variations of the SE-NW-oriented tropical cyclones (TC) in the East China Sea (ECS) passing over the Kuroshio are studied using multi-year high-resolution sea surface temperature data, the tropical cyclone data, and the global reanalysis dataset. The statistical results show that there are 81 TCs passing over the Kuroshio from the southeast in the East China Sea, over 68 years from 1949 to 2016. In terms of the change of the atmospheric pressure in the center of the TC, there are three categories: 31 TCs are intensified, 28 maintain their intensities, and 22 weakened. Significant seasonal differences are presented in the distribution. In the analysis on the intensified TCs, it is found that the TCs in the range where the center translational speed is from 1 m/s to 8 m/s and the distance from the Kuroshio main axis is from 10 km to 75 km are intensified more significantly. The analysis of three specific examples of TCs show that the stronger characteristics of the Kuroshio warm water in the ECS, the greater the intensity increase of such tropical cyclones.

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Data Availability Statement

The datasets analyzed during the current study are available in the REMSS Analysis (Sea surface temperature data is the daily data provided by the National Oceanographic Data Center of the United States, download from:, the China Meteorological Administration (CMA,, and the Global Drifter Program (GDP, download from:


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Corresponding author

Correspondence to Changming Dong.

Additional information

Supported by the National Key Research and Development Program of China (Nos. 2017YFA0604100, 2016YFA0601803), the National Natural Science Foundation of China (Nos. 41476022, 41490643), the Startup Foundation for Introducing Talent of Nanjing University of Information Science & Technology (No. 2014r072), the Program for Innovation Research and Entrepreneurship Team in Jiangsu Province (No. 2191061503801), the National Program on Global Change and Air-Sea Interaction (No. GASI-03-IPOVAI-05), the National Science Foundation of China (No. OCE 06-23011), and the Foundation of China Ocean Mineral Resources R&D Association (Nos. DY135-E2-2-02, DY135-E2-3-01)

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Yu, Y., Dong, C., Shan, H. et al. Statistical analysis of intensity variations in tropical cyclones in the East China Sea passing over the Kuroshio. J. Ocean. Limnol. 38, 1632–1639 (2020).

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  • intensity of typhoons
  • Kuroshio
  • East China Sea