Impacts of climate change on future flood damage on the river Meuse, with a distributed uncertainty analysis

Detrembleur, Sylvain; Stilmant, Frédéric; Dewals, Benjamin; Erpicum, Sébastien; Archambeau, Pierre; Pirotton, Michel

doi:10.1007/s11069-015-1661-6

Cited by 24 publications

(20 citation statements)

References 21 publications

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“…Also, the downstream boundary conditions expressed by Eq. (1) leads to Froude numbers in our simulation domain ranging between 0.1 and 0.4, which matches detailed flow computations performed for typical real-world floodplains of lowland rivers (Beckers et al 2013, Detrembleur et al 2015).…”

Section: Boundary Conditionssupporting

confidence: 82%

Influence of urban pattern on inundation flow in floodplains of lowland rivers

Bruwier

Mustafà

Aliaga³

et al. 2018

Science of The Total Environment

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The objective of this paper is to investigate the respective influence of various urban pattern characteristics on inundation flow. A set of 2000 synthetic urban patterns were generated using an urban procedural model providing locations and shapes of streets and buildings over a square domain of 1×1km. Steady two-dimensional hydraulic computations were performed over the 2000 urban patterns with identical hydraulic boundary conditions. To run such a large amount of simulations, the computational efficiency of the hydraulic model was improved by using an anisotropic porosity model. This model computes on relatively coarse computational cells, but preserves information from the detailed topographic data through porosity parameters. Relationships between urban characteristics and the computed inundation water depths have been based on multiple linear regressions. Finally, a simple mechanistic model based on two district-scale porosity parameters, combining several urban characteristics, is shown to capture satisfactorily the influence of urban characteristics on inundation water depths. The findings of this study give guidelines for more flood-resilient urban planning.

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Section: Boundary Conditionssupporting

confidence: 82%

Influence of urban pattern on inundation flow in floodplains of lowland rivers

Bruwier

Mustafà

Aliaga³

et al. 2018

Science of The Total Environment

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“…This model has been extensively validated and applied for simulating flow induced by dam and dike breaching Roger et al, 2009) as well as for conducting flood risk analysis (Arrault et al, 2016;Beckers et al, 2013;Bruwier et al, 2015;Detrembleur et al, 2015;Ernst et al, 2010).…”

Section: Hydraulic Modellingmentioning

confidence: 99%

Formation, breaching and flood consequences of a landslide dam near Bujumbura, Burundi

Nibigira

Havenith

Archambeau

et al. 2018

Nat. Hazards Earth Syst. Sci.

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Abstract. This paper investigates the possible formation of a landslide dam on the Kanyosha River near Bujumbura, the capital of Burundi, as well as the interplay between the breaching of this landslide dam and the flooding along the river. We present an end-to-end analysis, ranging from the origin of the landslide up to the computation of flood waves induced by the dam breaching. The study includes three main steps. First, the mass movement site was investigated with various geophysical methods that allowed us to build a general 3-D model and detailed 2-D sections of the landslide. Second, this model was used for dynamic landslide process modelling with the Universal Distinct Element Code. The results showed that a 15 m high landslide dam may form on the river. Finally, a 2-D hydraulic model was set up to find out the consequences of the breaching of the landslide dam on flooding along the river, especially in an urban area located downstream. Based on 2-D maps of maximum water depth, flow velocity and wave propagation time, the results highlight that neglecting the influence of such landslide dams leads to substantial underestimation of flood intensity in the downstream area.

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“…For the hydraulic analysis, we used the academic model WOLF 2D, which solves the shallow-water equations by means of a stable and conservative finite volume scheme. This model has been extensively validated and applied for simulating flow induced by dam and dike breaching (Dewals et al, 2011;Roger et al, 2009) as well as for conducting flood risk analysis (Arrault et al, 2016;Beckers et al, 2013;Bruwier et al, 2015;Detrembleur et al, 2015;Ernst et al, 2010).…”

Section: Hydraulic Modellingmentioning

confidence: 99%

Authors response to Review comment by Martin Mergili for “Formation, breaching and flood consequences of a landslide dam near Bujumbura, Burundi”

Anonymous

2018

Preprint

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This paper investigates the possible formation of a landslide dam on the Kanyosha River near Bujumbura, the capital of Burundi, as well as the interplay between the breaching of this landslide dam and the flooding along the river. We present an end-to-end analysis, ranging from the origin of the landslide up to the computation of flood waves induced by the dam breaching. The study includes three main steps. First, the mass movement site was investigated with various geophysical methods that allowed us to build a general 3D model and detailed 2D sections of the landslide. Second, this model was used for dynamic landslide process modelling with the Universal Distinct Element Code. The results showed that a fifteen-meterhigh landslide dam may form on the river. Finally, a 2D hydraulic model was setup to find out the consequences of the breaching of the landslide dam on flooding along the river, especially in an urban area located downstream. Based on 2D maps of maximum water depth, flow velocity and wave propagation time, the results highlight that neglecting the influence of such landslide dams leads to substantial underestimation of flood intensity in the downstream area.

show abstract

Impacts of climate change on future flood damage on the river Meuse, with a distributed uncertainty analysis

Cited by 24 publications

References 21 publications

Influence of urban pattern on inundation flow in floodplains of lowland rivers

Influence of urban pattern on inundation flow in floodplains of lowland rivers

Formation, breaching and flood consequences of a landslide dam near Bujumbura, Burundi

Authors response to Review comment by Martin Mergili for “Formation, breaching and flood consequences of a landslide dam near Bujumbura, Burundi”

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