2015
DOI: 10.5194/nhess-15-2497-2015
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Coastal flooding of urban areas by overtopping: dynamic modelling application to the Johanna storm (2008) in Gâvres (France)

Abstract: Abstract. Recent dramatic events have allowed significant progress to be achieved in coastal flood modelling over recent years. Classical approaches generally estimate wave overtopping by means of empirical formulas or 1-D simulations, and the flood is simulated on a DTM (digital terrain model), using soil roughness to characterize land use. The limits of these methods are typically linked to the accuracy of overtopping estimation (spatial and temporal distribution) and to the reliability of the results in urb… Show more

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Cited by 51 publications
(49 citation statements)
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“…La modélisation de la submersion par débordement est aujourd'hui relativement maitrisée. Toutefois, l'aléa de submersion est souvent causé par des franchissements (LE ROY et al, 2015 ;GALLIEN, 2016, NICOLAE LERMA et al, 2018. Or, la modélisation des franchissements en conditions réelles se confronte à plusieurs défis majeurs.…”
Section: Introductionunclassified
“…La modélisation de la submersion par débordement est aujourd'hui relativement maitrisée. Toutefois, l'aléa de submersion est souvent causé par des franchissements (LE ROY et al, 2015 ;GALLIEN, 2016, NICOLAE LERMA et al, 2018. Or, la modélisation des franchissements en conditions réelles se confronte à plusieurs défis majeurs.…”
Section: Introductionunclassified
“…High-resolution numerical modelling has therefore become the preferred approach to characterize flooding hazards in the most exposed and vulnerable sites (e.g. Guimarães et al, 2015;Le Roy et al, 2015;Gallien, 2016).…”
mentioning
confidence: 99%
“…In the last few years, several process-based models have been developed and applied to address coastal flooding risks: VOF (volume of fluid) model (Tomás et al, 2016), Boussinesq model (Lynett et al, 2010;Andrade et al, 2013), nonhydrostatic phase-averaged model (Smith et al, 2012;Gallien, 2016), and NLSW (nonlinear shallow water) model (Suzuki et al, 2012;Guimarães et al, 2015;Le Roy et al, 2015). These, and especially the SWASH model (Simulating WAves till SHore), are able to reproduce the dynamics of wave surges and overtopping to an appropriate degree of reliability for coastal flooding studies (Suzuki et al, 2012).…”
mentioning
confidence: 99%
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