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Revista EIA

Print version ISSN 1794-1237

Abstract

ALVAREZ, Lina María  and  BARROS, Juan Fernando. PROPUESTA DE CALIBRACIÓN DE UN MODELO PARA EL TRÁNSITO DE CRECIENTES EN UN TRAMO DEL RÍO MEDELLÍN. Rev.EIA.Esc.Ing.Antioq [online]. 2006, n.6, pp.129-140. ISSN 1794-1237.

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.

Keywords : Flood routing; calibration; base discharge; floodplain; Medellín river; NWS-FLDWAV.

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