Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS, sponsor, Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy, sponsor, Aquapôle - AQUAPOLE, research center
المصدر:
In S. E., Christodoulou, Proc. 7th Int. Conf. on Water Resources Conservancy and Risk Reduction Under Climatic Uncertainty (pp. 411-418). Limassol, Cyprus: EWRA (2009).
Risk management is currently shifting from the full protection against flooding towards the management of theconsequences of flooding. To reduce these consequences, micro-scale analysis is compelled. In addition to thehydraulic modelling of the inundation flow, nearby land use and vulnerability of elements-at-risk are taken intoconsideration. This new approach requests an interdisciplinary collaboration of scientists from hydraulic and socialscience, as is the case for this paper. The research teams have developed a methodology to evaluate socio-economicconsequences of flooding based on the analysis at the micro-scale of the flood characteristics, the exposure and thevulnerability of elements-at-risk and the adaptive capacity of society. The hydrodynamic simulations are conductedby means of 2D flow modelling run on a highly accurate Digital Surface Model - DSM with a resolution of 2 by 2meters. The two-dimensional modelling provides high resolution flood maps detailing the distribution of water depthand flow velocity field in the floodplains, which constitute key inputs for the subsequent flood risk analysis. Themethodology will be illustrated for a case study along River Ourthe, which is the main tributary of River Meuse inBelgium, for selecting and designing flood protection measure. The geographic data in this area are available at aresolution consistent with the conducted micro-scale risk analysis. They include data on social vulnerability comingfrom the most recent socio-economic national survey (NIS).
