Modelación hidráulica bidimensional de los desbordes el Chañaral y la garrapata del río Pilcomayo
; Gyssels, Paolo ; Corral, Mariano Andres
; Pagot, Mariana Renee ; Vargas, Constanza ; Farias, Hector Daniel
; Rodriguez, Andres 
Otros responsables
Fecha
09/2016
Editorial
Organización de las Naciones Unidas para la Educación, la Ciencia y la Cultura. Programa Hidrológico Intergubernamental
Revista
Aqua-LAC
Título del libro
Nombre del evento
Fecha del evento
Institución organizadora
ISSN
1688-2873
eISSN
1688-2881
ISBN
Idioma
Español
Tipo del evento
Clasificación temática
Palabras clave
Resumen
Este trabajo pretende obtener los caudales de desborde de El Chañaral y La Garrapata del Río Pilcomayo. Para lograr este objetivo se realizó una modelación numérica bidimensional permanente a fondo fijo y sin transporte de sedimentos de la hidráulica del tramo. La zona de estudio se localiza en la zona que se conoce como Pilcomayo Superior, parte de la cuenca baja del río Pilcomayo, 13 km al noroeste de la localidad Santa Victoria en la provincia de Salta Argentina. Para realizar la modelación se han analizado imágenes satelitales, hidrogramas, aforos durante crecidas, topografías e imágenes de radar SRTM. En una primera etapa se analizó la topografía e imágenes SRTM para elaborar el modelo digital del terreno, posteriormente se seleccionaron las condiciones de contorno del modelo con la ayuda de imágenes satelitales y series hidrométricas, y finalmente se evaluaron los resultados de las simulaciones numéricas para determinar los caudales que desbordan y los que continúan aguas abajo por el Río Pilcomayo. Con los resultados del modelo se pudo obtener una aproximación de los caudales que activan los desbordes y los caudales desbordados.
This work aims to obtain the flow rates of El Chañaral and La Garrapata overflows of the Pilcomayo River. This article presents a stationary two-dimensional model with fixed bed and no sediment transport in the overflow reach of El Chañaral and La Garrapata, located in the Upper Pilcomayo, part of the lower basin of the Pilcomayo River, in order to approximate the flow that activates the overflows. To achieve the proposed objective it has been analyzed satellite imagery, hydrographs, gauging during floods, topographies and SRTM radar images. In a first stage the topography and images SRTM were analyzed to develop the digital terrain model, then the boundary conditions model were selected with the help of satellite images and hydrometric series, and finally the results are evaluated to determine flow rates that overflows as well as those which continue downstream in the Pilcomayo River. Subsequently the results of the modeling are superimposed on satellite images available for the studied flows. It could be determined with this information an approximation to the flows that activate the overflows and those that overflows. The result obtained showed a good agreement with previous work.
This work aims to obtain the flow rates of El Chañaral and La Garrapata overflows of the Pilcomayo River. This article presents a stationary two-dimensional model with fixed bed and no sediment transport in the overflow reach of El Chañaral and La Garrapata, located in the Upper Pilcomayo, part of the lower basin of the Pilcomayo River, in order to approximate the flow that activates the overflows. To achieve the proposed objective it has been analyzed satellite imagery, hydrographs, gauging during floods, topographies and SRTM radar images. In a first stage the topography and images SRTM were analyzed to develop the digital terrain model, then the boundary conditions model were selected with the help of satellite images and hydrometric series, and finally the results are evaluated to determine flow rates that overflows as well as those which continue downstream in the Pilcomayo River. Subsequently the results of the modeling are superimposed on satellite images available for the studied flows. It could be determined with this information an approximation to the flows that activate the overflows and those that overflows. The result obtained showed a good agreement with previous work.
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