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Numerical simulation of typhoon waves in Sanmen Bay

Based on the MIKE21 SW wave numerical model, taking Typhoon Talim as an example, the sensitivity analysis of the influence of wave physical processes such as bottom friction, wave breaking and wave-wave nonlinear interaction on typhoon waves is carried out. The optimal parameters are selected to simulate the wave changes in Sanmen Bay under the influence of typhoon Talim and compared with the measured data. The results show that different wave physical process parameters have certain influence on the simulation results, and the simulation results are in good agreement with the measured data. The established model has reference significance for typhoon wave prediction in Sanmen Bay.