Use of field measurements to improve probabilistic wave overtopping forecasts

Pullen, T.; Tozer, N.; Sayers, P.; Hawkes, P.; Saulter, A.; Flowerdew, J.; Horsburgh, K. ORCID: 2009 Use of field measurements to improve probabilistic wave overtopping forecasts. In: McKee Smith, Jane, (ed.) Proceedings of the 31st International Conference on Coastal Engineering 2008. Singapore, World Scientific Publ Co Pte Ltd, 3020-3021.

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The project described in this paper includes development of surge ensemble modelling for the UK, and demonstration of probabilistic coastal flood forecasting for an area in the Irish Sea. Its purpose is to develop, demonstrate, and evaluate probabilistic methods for surge, nearshore wave, and coastal flood forecasting in England and Wales, but the concepts and models would be equally applicable elsewhere. The main features that distinguish these methods from existing practice are in the use of hydraulic models extending through to action at coastal defences, and the use of ensemble and other probabilistic approaches throughout. Use of offshore forecasts to estimate the likelihood of high overtopping involves transformation of wave forecasts through the nearshore and surf zones, and the combined effects of wind, waves and sea level in causing overtopping. The model is outlined and site-specific measurements of waves and overtopping discharges are described and compared to the probabilistic predictions of the model.

Item Type: Publication - Book Section
Programmes: POL Programmes
ISBN: 978-981-4277-36-5
Additional Keywords: waves, coastal impacts, climate change, numerical models, NW Europe
NORA Subject Terms: Marine Sciences
Date made live: 24 Aug 2012 14:35 +0 (UTC)

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