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ORIGINAL RESEARCH article

Front. Mar. Sci.
Sec. Coastal Ocean Processes
Volume 11 - 2024 | doi: 10.3389/fmars.2024.1423294

Tide-Surge Interactions in Northern South China Sea: A Comparative Study of Barijat and Mangkhut (2018)

Provisionally accepted
YAN CHEN YAN CHEN 1,2Yating Miao Yating Miao 1,2Peiwei Xie Peiwei Xie 1Yuhong Zhang Yuhong Zhang 1,2,3*Yineng Li Yineng Li 1,2*
  • 1 State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou, China
  • 2 University of Chinese Academy of Sciences, Beijing, Beijing, China
  • 3 Guangdong Key Lab of Ocean Remote Sensing, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou, Guangdong Province, China

The final, formatted version of the article will be published soon.

    In this study, the storm surge processes and characteristics of Tide-Surge Interactions (TSI) induced by the sequential tropical cyclones (TCs) BARIJAT and MANGKHUT (2018) in the Northern South China Sea (NSCS) are investigated using the numerical model. By comparing the impacts of the two TCs, we find that storm surges are significantly influenced by multiple factors. Notably, bays situated on the western side of the cyclone's landfall point exhibit a double peak pattern in storm surge. In addition, TSI exhibits a pronounced impact across bays affected by the two TCs, with amplitude fluctuations ranging from -0.3 to 0.3 meters and contributing approximately -5% to -20% to the peaks of storm surge. Comparative analysis of TSI variations reveals that tides act as the primary determinant, significantly influencing both the magnitude and period of TSI. Dynamic analysis further highlights that variations in TSI are dominated by barotropic pressure gradient and bottom friction stress. Moreover, TSI affects the frequency of storm surges, introducing highfrequency tidal signals to storm surges and reducing the frequency of storm surges.

    Keywords: storm surge, Tide-surge interactions, Northern South China Sea, Numerical modeling, Mechanism analysis

    Received: 25 Apr 2024; Accepted: 14 Aug 2024.

    Copyright: © 2024 CHEN, Miao, Xie, Zhang and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Yuhong Zhang, State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou, 510301, China
    Yineng Li, State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou, 510301, China

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