Article (Scientific journals)
Micro-scale flood risk analysis based on detailed 2D hydraulic modelling and high resolution geographic data
Ernst, Julien; Dewals, Benjamin; Detrembleur, Sylvain et al.
2010In Natural Hazards, 55 (2), p. 181-209
Peer reviewed
 

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Published online: 15 May 2010
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J. Ernst, B. J. Dewals have contributed equally to this article. The original publication is available at www.springerlink.com.


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Abstract :
[en] The paper presents a consistent micro-scale flood risk analysis procedure, relying on detailed 2D inundation modelling as well as on high resolution topographic and land use database. The flow model is based on the shallow-water equations, solved by means of a finite volume scheme on multiblock structured grids. Using highly accurate laser altimetry, the simulations are performed with a typical grid spacing of 2m, which is fine enough to represent the flow at the scale of individual buildings. Consequently, the outcomes of hydraulic modelling constitute suitable inputs for the subsequent exposure analysis, performed at a micro-scale using detailed land use maps and geographic database. Eventually, the procedure incorporates social flood impact analysis and evaluation of direct economic damage to residential buildings. Besides detailing the characteristics and performance of the hydraulic model, the paper describes the flow of data within the overall flood risk analysis procedure and demonstrates its applicability by means of a case study, for which two different flood protection measures were evaluated.
Research center :
Aquapôle - ULiège
Disciplines :
Civil engineering
Author, co-author :
Ernst, Julien  ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Dewals, Benjamin   ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Detrembleur, Sylvain ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Archambeau, Pierre  ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
Erpicum, Sébastien  ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydraulique génér., const. hydraul. et méc. des fluides
Pirotton, Michel ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Hydrodynamique appl. et constructions hydrauliques (HACH)
 These authors have contributed equally to this work.
Language :
English
Title :
Micro-scale flood risk analysis based on detailed 2D hydraulic modelling and high resolution geographic data
Publication date :
15 May 2010
Journal title :
Natural Hazards
ISSN :
0921-030X
eISSN :
1573-0840
Publisher :
Springer Science & Business Media B.V.
Volume :
55
Issue :
2
Pages :
181-209
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
Commentary :
J. Ernst, B. J. Dewals have contributed equally to this article.
Available on ORBi :
since 24 February 2010

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