Resistance Partitioning of Headwater Mountain Streams A Case Study in Southern Ecuador

Sebastián Cedillo, Luis Timbe, Esteban Samaniego, Andrés Alvarado

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Resumen

Resistance partitioning is a standard method to divide total resistance into linear additive components. Nevertheless, in mountain rivers the consideration of linearity is questionable. This article analyses the resistance partitioning on five reaches with typical mountain river morphologies (three cascades and two step-pools) in the Quinoas River in southern Ecuador through the calibration of two equations: The calibrated Keulegan and another nondimensional hydraulic geometry equation calibrated with resistance measured in a plain bed. Each studied reach was divided into three to five cross sections to take geometric and hydraulic data for six months for a wide range of flows magnitudes. The calibrated Keulegan equation provides the best results based on the values presented in the literature, the calibrated nondimensional hydraulic geometry equation produces different values probably due to the presence of vegetation in the banks of the plain-bed reach.

Idioma originalInglés
Título de la publicación alojadaWorld Environmental and Water Resources Congress 2020
Subtítulo de la publicación alojadaHydraulics, Waterways, and Water Distribution Systems Analysis - Selected Papers from the Proceedings of the World Environmental and Water Resources Congress 2020
EditoresSajjad Ahmad, Regan Murray
EditorialAmerican Society of Civil Engineers (ASCE)
Páginas183-194
Número de páginas12
ISBN (versión digital)9780784482971
DOI
EstadoPublicada - 2020
EventoWorld Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis - Henderson, Estados Unidos
Duración: 17 may. 202021 may. 2020

Serie de la publicación

NombreWorld Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis - Selected Papers from the Proceedings of the World Environmental and Water Resources Congress 2020

Conferencia

ConferenciaWorld Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis
País/TerritorioEstados Unidos
CiudadHenderson
Período17/05/2021/05/20

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