# Effect of Tide Level Change on Typhoon Waves in the Taiwan Strait and Its Adjacent Waters
They also noted that the typhoon intensity and model wind field calculation results from the Central Meteorological Observatory were significantly weaker than the actual conditions. [PERSON] and [PERSON] [17] used the Regional Ocean Modeling System (ROMS) with a spatial resolution of 2 km to understand the cooling response associated with multiple typhoons in the Northeastern Sea of Taiwan. The results show that, after integrating the tidal forcing, the cold wake after the typhoon channel simulated by the model is basically enhanced. [PERSON] et al. [18] used the FVCOM model to conduct a numerical study on the storm surge behavior caused by typhoon \"Mangosteen\" in the Pearl River Estuary and its surrounding areas. The results show that the impact of landfall timing is dominated by tide-tide interactions. Taking typhoon \"Chanhong\" as an example, [PERSON] et al. [19] used a validated numerical model to study the characteristics and dynamics of storm surges. The model results show that during the typhoon process, the total water level of Haizhu Island is dominated by tides, and the storm surge is closely related to the wind field. Surface currents are primarily influenced by wind, followed by tides. Based on the numerical simulation method, [PERSON] et al. [PERSON] et al. (2018) constructed a detailed hydrodynamic model of the Shantou Sea area in Guangdong, China, and verified the accuracy of the model by using the measured tide height and tidal current. According to the simulation results, the tidal elevation and tidal current in the study area are analyzed. [PERSON] et al. [PERSON] et al. (2018) use the semi-implicit Euler-Lagrangian finite element model coupled with wind wave model II (selfe-wm-II) based on unstructured grids to simulate the fully coupled simulation system of tidal and wave interactions. The results show that wind waves should not be ignored when simulating typhoon-induced storm surges, especially in areas with steep submarine slopes. Additionally, storm surge simulations require accurate tidal and meteorological forces. [PERSON] et al. [PERSON] et al. (2018) developed a numerical model of storm surge and applied it to the coast of Taiwan and adjacent waters. This two-dimensional model has a fine horizontal resolution and considers the interaction of storm surges and astronomical tides, which is suitable for describing the complex physical properties of storm surges along the coast of Taiwan. The results show reasonable agreement between model simulations and observed data. [PERSON] et al. [PERSON] et al. (2018) carried out a numerical simulation of global ocean tide waves based on the semi-implicit trans-scale ocean model of unstructured grids. The measured data are consistent with the simulation results, but there is room for improvement in accuracy. [PERSON] et al. [PERSON] et al. (2018) proposed a modularized tide level prediction model consisting of astronomical tidal data affected by astronomical tidal forces and non-astronomical tidal data affected by various environmental factors. They emphasized the significant impact of meteorological factors on tides, indicating that these factors play a crucial role in the variability of tide levels. The research content of this paper aims to establish a numerical model of the Taiwan Strait and its surrounding waters using the third-generation numerical model SWAN, which is coupled with the tide level at the corresponding moment. The simulation results will be compared with measured data to verify the accuracy of the typhoon wind field simulation. Additionally, this paper will analyze the optimization effect after incorporating the tide level into the model and discuss the influence of the tide level on typhoons.