ICCE 2022

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EXTREME WAVES IN SHALLOW WATER AND DREDGED CHANNELS FOR DIRECTIONAL SEAS. (2023). Coastal Engineering Proceedings, 37, structures.37. https://doi.org/10.9753/icce.v37.structures.37


Extreme wave conditions at coastal structures located offshore of natural coastlines and the zone of wave breaking are influenced by the deepwater wave conditions, the coastal bathymetry between deepwater and the structure, and the ongoing growth, generation and decay of waves across the coastal shelf. At locations where the coastal shelf is relatively flat, the gradually reducing water depths can limit the significant and maximum wave heights and crest elevations that may be encountered. If a coastal structure is located in deeper water than the bathymetry of approaching waves, for example port or navigation structures located in dredged channels or basins, coastal engineers need to consider wave conditions in the shallower approach waters and the transformation and propagation of waves across the dredged area. The directional characteristics of wave spectra in this situation can have a significant impact on extreme wave conditions that occur within the dredged basin. This paper presents insights into extreme wave conditions for gently sloping natural seabed profiles and also within a dredged basin, for directional seas which occur within the direct path of severe storms; for example, tropical cyclones.


Baker, Collins, Cornett and McLaren (2019). Physical Modelling of Extreme Wave Interaction with an Offshore Terminal. Coastal Structures, 2019.

Babinin, Young, and Banner (2001). Breaking probabilities for dominant surface waves on water of finite constant depth, J. Geophys. Res., 106, 11,659-11,676.

Brodtkorb, Johannesson, Lindgren, Rychlik, Rydén, and Sjö. (2000). WAFO - a Matlab toolbox for analysis of random waves and loads. Proceedings of the 10th International Offshore and Polar Engineering conference, Seattle, Vol III, pp. 343-350.

Forristall (2004). Environmental Forces on Offshore LNG Terminals: The Complications of Shallow Water. Proceedings of OMAE04 – 23rd International Conference on Offshore Mechanics and Arctic Engineering. June 20-25, 2004. Vancouver, Canada.

Goda (2000). Random Seas and Design of Maritime Structures. Advanced Series on Ocean Engineering – Volume 15. World Scientific, Singapore. ISBN-13 978-981-02-3256-6.

Nelson, R.C. (1994). Depth limited design wave heights in very flat regions, Coastal Engineering, 23, 43-59.

Young, I. R. (2006), Directional spectra of hurricane wind waves, J. Geophys. Res., 111, C08020.

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Copyright (c) 2023 David Taylor, Sean Garber, Scott Collins, Scott Baker, Andrew Cornett