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Article

Sensitivity of Flood Hazard and Damage to Modelling Approaches

1
School of Environmental Sciences, University of Liverpool, Liverpool L69 7ZT, UK
2
National Oceanography Centre Liverpool, Joseph Proudman Building, 6 Brownlow Street, Liverpool L3 5DA, UK
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Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2020, 8(9), 724; https://doi.org/10.3390/jmse8090724
Received: 31 July 2020 / Revised: 2 September 2020 / Accepted: 17 September 2020 / Published: 19 September 2020
(This article belongs to the Section Coastal Engineering)
Combination of uncertainties in water level and wave height predictions for extreme storms can result in unacceptable levels of error, rendering flood hazard assessment frameworks less useful. A 2D inundation model, LISFLOOD-FP, was used to quantify sensitivity of flooding to uncertainty in coastal hazard conditions and method used to force the coastal boundary of the model. It is shown that flood inundation is more sensitive to small changes in coastal hazard conditions due to the setup of the regional model, than the approach used to apply these conditions as boundary forcing. Once the threshold for flooding is exceeded, a few centimetres increase in combined water level and wave height increases both the inundation and consequent damage costs. Improved quantification of uncertainty in inundation assessments can aid long-term coastal flood hazard mitigation and adaptation strategies, to increase confidence in knowledge of how coastlines will respond to future changes in sea-level. View Full-Text
Keywords: LISFLOOD; estuarine storm response; inundation model; coastal wave hazard; coastal flood hazard; storm impact modelling LISFLOOD; estuarine storm response; inundation model; coastal wave hazard; coastal flood hazard; storm impact modelling
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MDPI and ACS Style

Lyddon, C.E.; Brown, J.M.; Leonardi, N.; Plater, A.J. Sensitivity of Flood Hazard and Damage to Modelling Approaches. J. Mar. Sci. Eng. 2020, 8, 724. https://doi.org/10.3390/jmse8090724

AMA Style

Lyddon CE, Brown JM, Leonardi N, Plater AJ. Sensitivity of Flood Hazard and Damage to Modelling Approaches. Journal of Marine Science and Engineering. 2020; 8(9):724. https://doi.org/10.3390/jmse8090724

Chicago/Turabian Style

Lyddon, Charlotte E., Jennifer M. Brown, Nicoletta Leonardi, and Andrew J. Plater 2020. "Sensitivity of Flood Hazard and Damage to Modelling Approaches" Journal of Marine Science and Engineering 8, no. 9: 724. https://doi.org/10.3390/jmse8090724

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