Simulation Tools of Flood Risk Management Planning (PAP014362)

Código

PAP014362

Autores

Stephan Theobald, Klaus Träbing

Tema

Flood resilient societies through community preparedness

Resumo

The Directive 2007/60/EC of the European Parliament and the Council on the assessment and management of flood risks (Flood Risk Management Directive) provides a framework for the mitigation and/or prevention of flood-related detrimental effects on human health, the environment, the cultural heritage and economic activities within the Community. A focus of the analysis in flood risk management plans (FRMPs) lays in the development of flood hazard and flood risk maps. A particular database was developed for the planning of measures which contains a quick and uncomplicated access to all the planned measures for the flood risk management. A key product of FRMPs is the resulting GIS Project which provides an extensive planning tool to describe the flood hazards, to analyse the flood risks and to develop appropriate measures in order to improve the flood risk management in the studied catchment area. This is useful for the continuous updating and completion and forms the basis for the development of the Internet viewer for the Hessian FRMP by the Hessian State Office for Environment and Geology (HLUG). Besides a geographic information system, two-dimensional HN methods, which solve the depth-averaged shallow water equations by means of an unstructured mesh and a cell-centred procedure, are widely used for the named studies. Investigations of flood protection at a section of the Hessian Lahn River, which is an eastern tributary of the Rhine River, will be consulted as the essential sample. In this review the technical and quality requirements are described regarding the digital terrain models and the hydrodynamic-numerical models. The several experiences gathered and tools developed concerning FRM-GIS and two-dimensional modelling are presented in this paper.