The influence of infragravity waves, wind, and basin resonance on vessel movements and related downtime at the Outer Port of Punta Langosteira, Spain

The coupling of low-frequency oscillatory modes a harbor with horizontal motions moored ships can amplify the latter, causing operational and safety problems. objectives this study were to analyze infragravity waves their effect on ship motions; validate Wavelet Transform Analysis (WTA) method for studying port-ship resonance in Outer Port Punta Langosteira, Spain; climatic forcing downtimes. excited resonant basin (102 132 s) determined using numerical model high-frequency water level measurements at different points harbor. Yaw sway three bulk carriers analyzed frequency-time domain WTA. results showed that oscillation periods studied vessel are directly related depth draft ratio. In addition, when wind speeds exceeds 20 km/h, moves away from fenders, which lead lengthening these periods. Based our findings, yaw may induce oscillations same period sway. Additionally, thresholds proposed based outer inner data will optimize stays, avoiding downtimes, advance loading unloading operations.