Harbour resonance and its contribution to wave overtopping are examined for a small irregular-shaped harbour in the eastern Mediterranean. Offshore wave measurements are used to determine the incident wave conditions during storm events. Resonant periods of the harbour basin are identified through in situ measurements at four different deployment locations during multiple storm events. Numerical simulations using a Boussinesq-type model and an idealised offshore spectrum yielded similar resonant frequencies to the field measurements and allowed us to visualise the corresponding resonant modes. Wave overtopping along the vertical docks of the harbour is inferred by combining numerical time series of free surface elevation with EurOtop formulae. Two approaches to estimate wave overtopping rates are examined and compared: a novel approach considering wave energy in the sea-swell frequency range and varying the freeboard through time series in the infragravity frequency range, and the conventional method that considers spectral parameters along the entire frequency range. The novel approach provides an estimate for the contribution of harbour resonance to wave overtopping considering that infragravity wave energy inside the basin is mainly resonance-driven.

研究了地中海东部一个不规则形状的小港口的港口共振及其对波浪漫顶的贡献。海上波浪测量用于确定风暴事件期间的入射波浪条件。在多个风暴事件期间，通过在四个不同部署位置的原位测量来确定港口盆地的共振周期。使用 Boussinesq 型模型和理想化离岸频谱的数值模拟产生了与现场测量相似的谐振频率，并使我们能够可视化相应的谐振模式。通过将自由表面高程的数值时间序列与 EuroOtop 公式相结合，可以推断沿港口垂直码头的波浪漫顶。检查并比较了两种估算波浪越顶率的方法：一种在海涌频率范围内考虑波浪能并通过次重力频率范围内的时间序列改变干舷的新方法，以及在整个频率范围内考虑频谱参数的传统方法。考虑到盆地内的次重力波能量主要是共振驱动的，这种新颖的方法提供了对港口共振对波浪漫顶的贡献的估计。