MODELLING MEMORY OF COASTAL FLOOD SYSTEMS
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Keywords

coastal flooding
storm sequence
XBeach
morphodynamic change
statistical storm analysis

How to Cite

Karunarathna, H., Brown, J., Briganti, R., Pockrajac, D., Haigh, I., Beck, C., Dissanayake, P., Pedrozo-Acuna, D., Sparrow, K., & Wadey, M. (2014). MODELLING MEMORY OF COASTAL FLOOD SYSTEMS. Coastal Engineering Proceedings, 1(34), management.19. https://doi.org/10.9753/icce.v34.management.19

Abstract

Flooding and coastal erosion is a frequent and widespread natural hazard in the UK. With increasing urban development pressures on flood systems and changing global climate, frequency and severity of flooding is rapidly increasing. Temporal clustering of flood events in time has a critical effect in reducing the ability of systems to recover to the pre-flood 'norm', leading to amplified flood damages in the second flood event. This can be considered as system memory, the timeframes of which will be highly variable and range from days to years according to system components. The current assumptions of flood risk are based on single-event simulations and fail to consider the spatio-temporal dynamics of morphological memory due to coastal erosion. The floodMEMORY project attempts to address this issue through a continuous flood simulation framework based on temporal clustering of flood drivers.
https://doi.org/10.9753/icce.v34.management.19
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References

Allsop et al (2007). FLOODsite project report T04_06_01

Beck, C. and Cohen, E.G.D. 2003. Superstatistics, Physica A: Statistical mechanics and its applications, 322, 267-275.

Briganti, R. and Dodd, N. 2009. On the role of shoreline boundary conditions in wave overtopping modelling with non-linear shallow water equations, Coastal Engineering, 56(10), 1061-1067.

Briganti, R., Dodd, N. Pokrajack, D. and O'Donoughue. 2011. Non linear shallow water modelling of bore-driven swash: description of the bottom boundary layer, Coastal Engineering, 58(6), 463-477.

Brown, J.M., Souza, A.J., Wolf, J. 2010a. An 11-year validation of wave-surge modelling in the Irish Sea, using a nested POLCOMS-WAM modelling system, Ocean Modelling, 33, 118 - 128.

Brown, J.M., Souza, A.J., Wolf, J. 2010b. Surge modelling in the eastern Irish Sea: Present and future storm impact, Ocean Dynamics, 60, 227 - 236.

DEFRA. 2005. Making space for water: taking forward a new Government strategy for flood and coastal erosion risk management in England. First Government response to the autumn 2004 Making space for water consultation exercise.

http://archive.defra.gov.uk/environment/flooding/documents/policy/

Lesser, G., Roelvink, J.A., Van Kester, J.A.T.M., Stelling, G.S. 2004. Development and validation of a three dimensional morphological model, Coastal Engineering, 51, 883 - 915.

Nicolls, R. et al. 2012. iCOASST - Integrating Coastal Sediment Systems, Proc. 33rd Int. Conf. in Coastal Eng., Santander, Spain

Office of Science and Technology (OST). 2004. Foresight. Future Flooding. Scientific Summary. Office of Science and Technology: London.

.Roelvink, D., Reniers, A., van Dongeren, A., Van Thiel de Vries, J., McCall, R., Lescinski, J. 2009. Modelling storm impacts on beaches, dunes and barrier islands. Coastal Engineering, 56, 1133 - 1152.

Steenhauer, K., D. Pokrajac and T. O'Donoghue. 2012. Numerical model of swash motion and air entrapment within coarse-grained beaches, Coastal Engineering, 64, 113-126.

Wang, J.P., Liang, Q. 2011. Testing a new adaptive grid-based shallow flow model for different types of flood simulations. Journal of Flood Risk Management 2011, 4(2), 96-103.

Williams, J.J., Brown, J., Esteves, L.S., Souza, A., 2011. MICORE WP4 Modelling coastal erosion and flooding along the Sefton Coast NW UK, Final Report (http://www.micore.eu)

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