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An approach to assess flooding and erosion risk for open beaches in a changing climate

Villatoro, M., Silva, R., Méndez, F.J., Zanuttigh, B., Pan, Shunqi, Trifonova, E., Losada, I.J., Izaguirre, C., Simmonds, D., Reeve, D.E., Mendoza, E., Martinelli, L., Formentin, S.M., Galiatsatou, P. and Eftimova, P. 2014. An approach to assess flooding and erosion risk for open beaches in a changing climate. Coastal Engineering 87 , pp. 50-76. 10.1016/j.coastaleng.2013.11.009

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This paper examines the vulnerability to flooding and erosion of four open beach study sites in Europe. A framework for the quantitative estimation of present and future coastal flood and erosion risks is established using methods, data and tools from across a range of disciplines, including topographic and bathymetric data, climate data from observation, hindcast and model projections, statistical modelling of current and future climates and integrated risk analysis tools. Uncertainties in the estimation of future coastal system dynamics are considered, as are the consequences for the inland systems. Different implementations of the framework are applied to the study sites which have different wave, tidal and surge climate conditions. These sites are: Santander, Spain—the Atlantic Ocean; Bellocchio, Italy—the Adriatic Sea; Varna, Bulgaria—the Black Sea; and the Teign Estuary, UK—the northern Atlantic Ocean. The complexity of each system is first simplified by sub-division into coastal “impact units” defined by homogeneity in the local key forcing parameters: wave, wind, tide, river discharge, run-off, etc. This reduces the simulation to that of a number of simpler linear problems which are treated by applying the first two components of the Source–Pathway–Receptor–Consequence (S–P–R–C) approach. The case studies reveal the flexibility of this approach, which is found useful for the rapid assessment of the risks of flooding and erosion for a range of scenarios and the likely effectiveness of flood defences.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: Elsevier
ISSN: 0378-3839
Funders: EU-FP7
Last Modified: 21 Feb 2019 14:49

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