A simple low-cost approach for transport parameter determination in mountain rivers

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dc.contributor.authorCastillo, Daniela
dc.contributor.authorRunkel, Robert L.
dc.contributor.authorDuhalde, Denisse
dc.contributor.authorPasten Gonzalez, Pablo Arturo
dc.contributor.authorArumí, José L.
dc.contributor.authorOyarzún, Jorge
dc.contributor.authorNúñez, Jorge
dc.contributor.authorMaturana, Hugo
dc.contributor.authorOyarzún, Ricardo
dc.contributor.otherCentro de Desarrollo Urbano Sustentable (Chile)
dc.date.accessioned2022-11-25T15:41:55Z
dc.date.available2022-11-25T15:41:55Z
dc.date.issued2021
dc.description.abstractA simplified low-cost approach to experimentally determine transport parameters inmountain rivers is described,with an emphasis on the longitudinal dispersion coefficient(DL). The approach is based on a slug injectionof table salt (NaCl) as a tracer and specificconductance readings at different locations downstream of the injection spot. Observedspecific conductance readings are fit using the advection-dispersion equation withOTIS-P, yielding estimates of cross-sectional area and longitudinal dispersion coefficientfor various stream reaches. Estimates of theDLare used to assess the accuracy of sev-eral empirical equations reported in the literature. This allowed the determination ofcomplementary transport parameters related to transient storage zones. The empiricalequations yielded rather highDLvalues, with some reaching up an order of magnitudehigher to those obtained from tracer additions and OTIS-P. Overall, the proposedapproach seems reliable and pertinent for river reaches of ca. 150 m in length.
dc.format.extent9 páginas
dc.fuente.origenSIPA
dc.identifier.doi10.1002/rra.3890
dc.identifier.eissn1535-1467
dc.identifier.urihttps://doi.org/10.1002/rra.3890
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/65753
dc.information.autorucEscuela de Ingeniería ; Pasten Gonzalez, Pablo Arturo ; 0000-0002-9961-9342 ; 10645469
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final181
dc.pagina.inicio173
dc.revistaRiver Research and Applicationses_ES
dc.rightsacceso abierto
dc.subjectHydraulic propertieses_ES
dc.subjectLongitudinal dispersion coefficientes_ES
dc.subjectOTIS/OTIS-Pes_ES
dc.subjectTracer additiones_ES
dc.titleA simple low-cost approach for transport parameter determination in mountain riverses_ES
dc.typeartículo
dc.volumen38
sipa.codpersvinculados10645469
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