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Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/12566


Título: Assessing Controls on the Displacement of Tracers in Gravel-Bed Rivers
Autores: Vázquez Tarrío, Daniel
Batalla, Ramon
Palabras Claves: Geología
Geomorfología
Fecha Edición: 31-Jul-2019
Editor: MDPI
Cita Bibliográfica: Vázquez-Tarrío, D.; Batalla, R.J. Assessing Controls on the Displacement of Tracers in Gravel-Bed Rivers. Water 2019, 11, 1598.
Resumen: Particle travel length is one of the main dimensions of bedload and strongly influences river morpho-dynamics, particularly when exploring the interactions between sediment transport and channel morphology. This process has been traditionally studied by using tagged stones that allow tracking the movement experienced by individual grains during transport episodes. In this paper, we relate measured particle travel lengths to flow metrics and river channel parameters. First, we link the event-based bedload volumes to the active-layer dimensions, and the product between the average bedload rates and the duration of competent flows. We then hypothesize that travel length depends on channel width, surface grain-size, particle size, bed structure, flow strength, and duration of competent flow. The results from this approach are, subsequently, tested with a set of tracer observations from eight rivers that were available in the literature. The relationship between travel length and flow metrics was found to be statistically strong and has the potential to allow us to quantitatively assess the one-day dynamics of particles moving along streambeds. We also analyzed the influence of channel morphology and bed structure and identified morphological signatures for particle transport in gravel-bed rivers
URI: https://ria.asturias.es/RIA/handle/123456789/12566
Aparece en las Colecciones:Open Access DRIVERset
Geología

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