CIUNR – Ciencias Exactas y Tecnológicas - Capítulos de Libro

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Examinando CIUNR – Ciencias Exactas y Tecnológicas - Capítulos de Libro por Materia "Inundation risk"

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  • Miniatura
    ÍtemAcceso Abierto
    Mathematical Modelling of Flood Propagation for the Delimitation of Rural, Semiurbanized and Urbanized zones with Inundation Risk
    (UNESCO, 1997) Riccardi, Gerardo A.; Zimmermann, Erik D.
    A mathematical model of subcritical flow simulation is described in this paper. It's capable for flood propagation in water courses with flood plains partial or totally obstructed. Also it permits the simulation in semiurbanized and urbanized zones , modelling the flow through the ground surface (major system) and through conduit networks (minor system). The model was calibrated by simulation of several events with recorded information and now this is being applied as a technical tool in the risk zone delimitation of floods with different retum period in the Luduena Stream, water course of the Rosario District. In this work the goveming equations of the model are exposed. Later the numeric formulation, the solution of the equations in kite differences, the boundary and initial conditions, and the computational structure are presented. Then the state of advance of a model application is described. This application consists in the model ling on: 15 km of water course, 1.5 km on big underground conduits, embracing a zone of 40 km2 in the rural and urban zone of the cities of Rosario and Funes. Lastly the conclusions of the work are exposed.
  • Miniatura
    ÍtemAcceso Abierto
    Zonification of areas with inundation risk by means of mathematical modelling in the Rosario region, Argentina
    (IAHS Press, Institute of Hydrology, Wallingford, Oxfordshire OX 10 8BB, UK, 1997) Riccardi, Gerardo A.; Zimmermann, Erik D.; Navarro, Raul A.
    River flood valleys are being subjected to urbanization processes in big cities of the world. Therefore, urban planning strategies based on water resources management must be established to avoid environmental deterioration. The mapping of risk zones by means of mathematical modelling is a tool to carry out control policies of land use and occupation. This paper describes a two-dimensional mathematical model and the determination of inundation risk maps for two rivers in the Rosario region of Argentina. The mapping was made over both Saladillo and Luduefia rivers, for floods of return periods of 50, 100 and 500 years. The studied zones embraced an area of 7000 ha, with a population of 500 000 inhabitants. Based on the results, state and local governments are planning non-structural rules with the associated legislation. The paper concludes that it is important to use flow simulation models for urban planning strategies and water resources management.