In a swell dominated region like the Northern Indian Ocean basin, the effect of pre-existing waves will play a significant role in the non-linear wave-wave interactions during cyclonic conditions, where the sea is dominated with high-frequency waves. Hence, to include such complex phenomenon into the numerical model, the present study aims at forcing a pre-run two-dimensional wave spectral output from an unstructured global coarser domain as a wave boundary condition to a finer regional domain. The storm wave and surge simulations were performed for the duration of cyclone Phailin (2013). A coupled (ADCIRC + SWAN) model was used for both, generating the spectrum, as well as the estimation of surge and wave attributes. Additionally, both storm wave and surge were simulated without considering the nested wave boundary condition, followed by the comparison and analyses of the modeled results with the field data. The investigation showed that the inclusion of wave boundary condition in the model resulted in closer agreement of the simulated wave parameters with the observed field data. The residual surge results also correlated well with the in-situ measurements, while the spatial representation of maximum water levels essentially revealed the spread of surge and its associated inundation.

在北部印度洋海盆这样的高潮地区，预先存在的波浪的影响将在气旋条件下的非线性波波相互作用中发挥重要作用，在旋风条件下，海洋以高频波为主。因此，为了将这种复杂的现象包括在数值模型中，本研究旨在将二维二维波谱输出从非结构化的全局较粗糙域作为波边界条件强制向较精细的区域域输出。在Phailin飓风（2013）期间进行了风暴波和浪涌模拟。耦合（ADCIRC + SWAN）模型用于生成频谱以及估算电涌和电波属性。此外，在不考虑嵌套波边界条件的情况下，模拟了风暴波和浪涌，接下来是对建模结果与现场数据的比较和分析。研究表明，在模型中包含波边界条件导致模拟波参数与实测数据更加一致。剩余的涌浪结果也与原位测量值很好地相关，而最大水位的空间表示基本上揭示了浪涌的扩散及其相关的淹没。