The prediction of infragravity waves within ports and harbours

Infragravity waves are known to give rise to mooring problems for large ships, notably including container ships. With the increased development of container ports that are more exposed to long period swell and the associated infragravity waves, the need to predict infragravity waves has become crucial in understanding and predicting port operability. Using the TELEMAC- SYSTEM wave model ARTEMIS, a method is developed to predict a long term hindcast of infragravity waves in harbours and is validated against measurements. A relationship between swell waves at a given port configuration and the corresponding infragravity waves is explored.