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Broadscale coastal inundation modelling

Lookup NU author(s): Dr Xingzheng Wu, Professor Jim Hall, Professor Qiuhua Liang, Professor Richard DawsonORCiD


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© Springer Science+Business Media Dordrecht 2015. All rights reserved. To understand the implications of changes to marine climates and the impact on people, analysis is required of the spatial extent and depths of flooding in urban and rural areas. Over extended timescales, the uncertainties related to possible sea-level rise and changes in storminess increase significantly. As such, there is no certainty regarding when and if a major storm or breach will occur. The increasing availability of some details of changing wave climate (described in Chaps. 2 and 3) and full range of beach evolutionary behaviours (given in Chap. 7) offer an opportunity to improve the implications of these uncertainties on flood extents. Uncertainties in beach level in front of flood defences, future sea level, extremes of wave height and water level and breach location(s) require that a wide range of current and potential future conditions are considered to fully understand flood risk. It is therefore crucial to capture and model a wide range of possible future inundation events. We simulated shallow flow hydrodynamics and validated this with a comparison of the recorded inundation extent from a flood event in 1938. Subsequently, with 1,344 simulations for each breaching scenario, we analyzed the full range of hydraulic loadings, beach morphologies, coastal defence structural responses (overtopping and breaching) and coastal management policy in order to understand the full range of uncertainties that influence long-term changes in flood impacts.

Publication metadata

Author(s): Wu XZ, Hall JW, Liang Q, Dawson RJ

Publication type: Book Chapter

Publication status: Published

Book Title: Broad Scale Coastal Simulation: New Techniques to Understand and Manage Shorelines in the Third Millennium

Year: 2015

Volume: 49

Pages: 213-232

Print publication date: 26/08/2015

Acceptance date: 01/01/1900

Series Title: Advances in Global Change Research

Publisher: Springer Netherlands


DOI: 10.1007/978-94-007-5258-0_8

Library holdings: Search Newcastle University Library for this item

ISBN: 9789400752580