Journal of Marine Sciences ›› 2019, Vol. 37 ›› Issue (3): 31-39.DOI: 10.3969/j.issn.1001-909X.2019.03.004

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Resonance in the Yueqing Bay generated by March 11 Japan Tsunami

LIU Yong1, LU Wen-fang*2,3, YING Chao1, LI Xin-wen1, YAO Wen-wei1   

  1. 1. Zhejiang Institute of Hydraulics & Estuary, Hangzhou 310020,China;
    2. National & Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou University, Fuzhou 350116, China;
    3. Key Laboratory of Spatial Data Mining and Information Sharing of Ministry of Education, Fuzhou University, Fuzhou 350116, China
  • Received:2019-01-18 Revised:2019-08-16 Online:2019-09-15 Published:2022-11-14

Abstract: In this study, a numerical model based on TELEMAC-2D was developed for the Pacific Ocean and the China Seas to simulate the propagation of the tsunami wave of the Honshu (Japan) tsunami event on March 11th, 2011. After validated against in-situ observation data from buoys, the influence of this event on the Yueqing Bay was investigated. By using a spectrum analysis, the amplitudes and phases of the resonance waves in the Yueqing Bay were found with the dominating periods of 240 min, 180 min and 103 min. A regional model driven by a white-noise-like boundary condition further elucidated the property of the natural oscillation at these periods, further supporting the finding of the three resonance modes. Moreover, the white-noise-driven model suggested that maximum amplitudes would appear both in the upper bay and at the bay mouth when tsunami disasters occurred. The conclusion of this paper can be instructive for disaster management and reduction of local governance.

Key words: Japan tsunami, bay resonance, Yueqing Bay, white-noise simulation, TELEMAC-2D

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