Examinando por Materia "FLOOD ROUTING"

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  • Miniatura
    PublicaciónAcceso abierto
    Metodología para evaluación de la condición de corrientes urbanas
    (2014-05-08) Barros-Martínez, J. F. (Juan Fernando); Vallejo-Giraldo, L. E. (Luz Eliana)
    A methodology for the evaluation of the condition of urban streams is proposed. The methodology integrates field data, historical information and technical analysis; it could be applied to the hydraulic component of the physical subsystem to comply with the ordering plans for watersheds. Pointers to measure the condition of the streams and the watershed are defined, the connection between portions of the streams with different hydraulic capacity conditions is analyzed and a multicriteria analysis is developed. This analysis compiles all the information gathered and identifies the most critical points of the hydraulic network based on three basic criteria: field evaluation, flooding records, and hydraulic capacity.
  • Miniatura
    PublicaciónRestringido
    Propuesta de calibración de un modelo para el tránsito de crecientes en un tramo del río Medellín
    (2014-05-08) Álvarez, L. M. (Lina María); Barros-Martínez, J. F. (Juan Fernando)
    This paper presents the methodology used to calibrate an NWS-FLDWAV model for flood routing through a stretch of the Medellín river. To build the model, the topographic information of the selected river section was compiled as soon as the stage hydrographs registered in the gauge stations. The importance of considering the discharge contributions along the stretch, which arise from the direct run-off caused essentially by the precipitation, was identified through the analysis of the behavior of the chosen floods. A way to calibrate the model was discovered that included the Manning coefficient of frictional resistance and the contribution discharge. This discharge was obtained from the analysis of the difference between base discharges for the two measurement stations that limit the river segment and were simulated with a spatial and temporal distribution.