Journal of Marine Sciences ›› 2019, Vol. 37 ›› Issue (2): 9-15.DOI: 10.3969/j.issn.1001-909X.2019.02.002

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Coupled atmosphere and wave model and its application in an idealized typhoon

WU Zhi-yuan1,2,3, JIANG Chang-bo*1,2, HE Zhi-yong1, CHEN Jie1,2, DENG Bin1,2, XIE Zhen-dong1   

  1. 1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410004, China;
    2. Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410004, China;
    3. School for Marine Science and Technology, University of Massachusetts Dartmouth, New Bedford, MA 02744, USA
  • Received:2018-12-07 Revised:2019-01-09 Online:2019-06-15 Published:2022-11-15

Abstract: In the previous studies, some traditional theoretical models and empirical models were used to construct the typhoon dynamic field, and the typhoon wind field and pressure field were used to drive the wave model. It could not reflect the sea-air dynamic process induced by typhoon and it was difficult to provide high-precision wind and pressure field data for the wave model. In order to solve this problem, a mesoscale meteorological model (WRF) and the third-generation wave model (SWAN) had been used to construct a two-way coupled atmosphere-wave model. This coupled model had been applied to the simulation of an idealized typhoon. The results show that the coupled WRF-SWAN model can successfully simulate the distribution of typhoon waves induced by an ideal typhoon and reveal the spatially asymmetric distribution called right side enhancement of typhoon wind field and waves field. This coupled atmosphere-wave model can be further promoted for simulation analysis of actual typhoon.

Key words: typhoon waves, numerical simulation, coupled atmosphere-wave model, real-time two-way coupled model

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