NOWCASTING INFRAGRAVITY WAVE HEIGHT WITHIN A HARBOUR USING AN ARTIFICIAL NEURAL NETWORK

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

Infragravity (IG) waves, sometimes known as “long waves” “low frequency waves” or “subharmonic gravity waves” are waves that are forced in deeper water through subharmonic interactions of sea and swell wave components. These waves are typically quite small (a few centimetres to decimetres) but can excite harbour seiching and amplification due to resonance. This can cause vessels to surge and sway at their berth, straining mooring lines and making loading and unloading difficult. This paper describes the design, training and application of a Bayesian regularized Artificial Neural Network (ANN) to accurately predict (“nowcast”) IG wave height outside and inside Port Kembla from deep-water swell wave spectral characteristics measured at Port Kembla Waverider Buoy (PKWRB), NSW coast (Williams, 2019).
Original languageEnglish
Title of host publicationCoastal Engineering Proceedings
Subtitle of host publicationWAVES
EditorsDan Cox
Number of pages1
DOIs
Publication statusPublished - 1 Sept 2023
Event37th International Conference on Coastal Engineering, ICCE 2022 - Sydney, Australia
Duration: 4 Dec 20229 Dec 2022

Conference

Conference37th International Conference on Coastal Engineering, ICCE 2022
Country/TerritoryAustralia
CitySydney
Period4/12/229/12/22

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