風浪數值模式已被廣泛應用於波浪預報，本文針對單一 SWAN模式、 WAM模式、 NWWⅢ模式與 WAM/SWAN巢狀 模式探討各模式推算能力。由於各模式具有不同的數值方法、參數值及經驗式，所以計算結果亦會有所不同，透過模擬計算花耗時間、格網解析度不同、計算時距不同下，討論模擬結果與實測值的相關係數與絕對誤差之關係。由結果顯示出， WAM/SWAN巢狀 模式在波高模擬的準確度較其它模式來得好，而 WAM模式在週期模擬較其它三個模式有較好的模擬結果； NWW Ⅲ模式在模擬時所花耗的時間為最短。在研究中發現當颱風來襲時，由於 WAM/SWAN巢狀 模式的格網較能描述近岸水深變化，故較能模擬出較準確波高的尖峰值。本文並討論 SWAN模式不同參數的消散係數( )，由計算結果與實測資料的比較可發現當 接近 時，其模擬結果會越接近實測值。

The wind wave models have been widely applied to the wave forecast. This paper, in view of the single SWAN model, the WAM model, the NWW III model and the WAM/SWAN nest model, discusses these models’ calculation ability. Because each model has different value methods, parameter values and empirical equation, the computed results also can be various. Through simulate calculation in spent time, different mesh analysis, and time ranges, the relation between correlation coefficient and absolute error in simulate results and actual values is discussed. The result shows that the WAM/SWAN nest model has higher accuracy than the other models in the wave height simulation. The WAM model compared with the other three models in the cyclical simulation has the best simulate result. NWW III model takes the shortest time in simulation. In the research, when typhoons coming, the mesh of WAM/SWAN nest-shaped pattern can describe the water depth change in nearshore better, so it can simulate a more accurate wave height peak value This paper also discusses the of different parameters in the SWAN pattern. Comparing the computed result with actual material, when is close to , its simulate result can be closer to the actual value.

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