Abstract
Coastal harbours are often subject to periodic surface water level and current speed oscillations (‘seiche’) on the order of 1 minute and longer, which can impede harbour operations by causing vessels to surge and sway
at their berth; strain or break mooring lines; or otherwise cause structural damage through overtopping or scour. Harbours known to seiche typically require investigations utilising both physical and numerical models
to minimise or mitigate adverse impacts by any proposed development that may alter the resonant characteristics of the harbour or its response to incident forcing functions. This paper outlines some of the successes and difficulties encountered by the authors in measuring seiching in NSW harbours (Coffs, Crowdy Head, Ulladulla and Port Kembla) prone to resonate from infragravity wave forcing during swell wave storm events and matching the model results to the measured seiche.
at their berth; strain or break mooring lines; or otherwise cause structural damage through overtopping or scour. Harbours known to seiche typically require investigations utilising both physical and numerical models
to minimise or mitigate adverse impacts by any proposed development that may alter the resonant characteristics of the harbour or its response to incident forcing functions. This paper outlines some of the successes and difficulties encountered by the authors in measuring seiching in NSW harbours (Coffs, Crowdy Head, Ulladulla and Port Kembla) prone to resonate from infragravity wave forcing during swell wave storm events and matching the model results to the measured seiche.
| Original language | English |
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| Publication status | Published - 2022 |