National Oceanography Centre Internal Document No. 16 The impact of tidal lagoons on future flood Risk on the North Wirral and Conwy coastline, UK C Lyddon1,2, Plater, A J2, J M Brown1, T Prime2 & J Wolf1 2015 1National Oceanography Centre, Liverpool 2Department of Geography and Planning 6 Brownlow Street University of Liverpool Liverpool Roxby Building, Chatham Street L3 5DA Liverpool UK L69 7DT UK Author contact details Tel: 0151 795 4971 Email:
[email protected] © National Oceanography Centre, 2015 DOCUMENT DATA SHEET AUTHOR PUBLICATION LYDDON, C, PLATER, A J, BROWN, J M, PRIME, T & WOLF, J DATE 2015 TITLE The impact of tidal lagoons on future flood risk on the North Wirral and Conwy coastline, UK. REFERENCE Southampton, UK: National Oceanography Centre, Southampton, 88pp. (National Oceanography Centre Internal Document, No. 16) (Unpublished manuscript) ABSTRACT This report considers the viability of tidal lagoons in the North Wirral and Conwy coastlines, to mitigate future flood risk and reduce the cost of damage in these areas. The report is aims to provide information on the feasibility and benefits of tidal lagoons as mitigation and adaptation strategies to future sea-level rise, as part of the RISES-AM project. Sea-level has been rising since instrumental records began in the 1700s, and has been rising at a rate of 3.0 ± 0.7 mm / yr-1 since 1990 (Hay et al., 2015). Low probability, plausible high-end sea-level rise scenarios, where global average warming exceeds 2oC in respect to the pre- industrial level, estimate up to 0.98 m sea-level rise (SLR) by 2100 (Church et al., 2013).