Artículo
Image-based migration velocity and dune length in clear water rivers
Patalano, Antoine
; Heredia Ligorria, Ana Inés
; Díaz Lozada, José Manuel
; Garcia Rodriguez, Carlos Marcelo
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Fecha de publicación:
08/2022
Editorial:
Elsevier
Revista:
Flow Measurement And Instrumentation
ISSN:
0955-5986
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This work presents a novel way of measuring image-based migration velocity and dune length in clear water rivers. These results, together with empirical formulations, can be used to estimate bedload sediment transport with a high-spatial resolution. Image processing relies on the non-intrusive image-based technique called Space-Time Image Velocimetry (STIV). STIV consists in visualizing pixel intensity variation in time over a defined line. This technique was originally applied to hydraulics in order to characterize streamwise surface velocities in rivers. In this case, STIV is used to measure dune migration velocity and length in a shallow river with clear water in Córdoba Province, Argentina. Image processing procedures are detailed, including pre-processing and rectification. Results are then compared with measurements obtained from Acoustic Doppler Current Profilers. Finally, as an appendix, using the measured data and empirical equations, an estimation of bedload sediment transport is performed using both techniques.
Palabras clave:
DUNE LENGTH
,
EXPERIMENTAL METHODS
,
MIGRATION VELOCITY
,
SEDIMENT TRANSPORT
,
STIV
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IDIT)
Articulos de INSTITUTO DE ESTUDIOS AVANZADOS EN INGENIERIA Y TECNOLOGIA
Articulos de INSTITUTO DE ESTUDIOS AVANZADOS EN INGENIERIA Y TECNOLOGIA
Citación
Patalano, Antoine; Heredia Ligorria, Ana Inés; Díaz Lozada, José Manuel; Garcia Rodriguez, Carlos Marcelo; Image-based migration velocity and dune length in clear water rivers; Elsevier; Flow Measurement And Instrumentation; 86; 8-2022; 1-11
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