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Hames, Dominic
Gouldby, Ben
With a rise in sea levels, there is a consequent increase in the risk to coastal communities of the severity and magnitude of flood events. However these increased risks are not spatially consistent, and the type and nature of a coastal defence may influence the change in the risk at a location, and to what extent levels of mitigation may need to be implemented. This paper therefore investigates the impact of the change in risk of coastal flooding around England as a result of sea level rise. It involves the application of components of an existing risk-based coastal flood risk analysis method for a subset of almost 600 defences to rises in sea levels up to 1m. The resulting analysis shows that overtopping rates increase at a much greater rate for low return period events, which can be in excess of 100 times. The analysis also shows that the change in overtopping rate is a function of the defence type, with the relative changes for sloping defence structures significantly greater than for vertical defence structures
Effect of sea level rise on the overtopping of English coastal defences
Kiadói változat
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Full or partial reprint or use of the papers is encouraged, subject to due acknowledgement of the authors and its publication in these proceedings. The copyright of the research resides with the authors of the paper, with the FLOODrisk consortium.
Budapest University of Technology and Economics
Science and practice for an uncertain future
sea level rise
coastal defences
FLOODrisk 2020 - 4th European Conference on Flood Risk Management

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  • FLOODrisk2020 [93]
    4th European Conference on Flood Risk Management

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