Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/3979
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dc.contributor.authorDeng, Zhi-Qiang-
dc.contributor.authorLima, João L. M. P. de-
dc.contributor.authorSingh, Vijay P.-
dc.date.accessioned2008-09-01T09:46:53Z-
dc.date.available2008-09-01T09:46:53Z-
dc.date.issued2005en_US
dc.identifier.citationJournal of Hydrology. 315:1-4 (2005) 220-235en_US
dc.identifier.urihttp://hdl.handle.net/10316/3979-
dc.description.abstractA one-dimensional mathematical model, termed a transport rate-based model, is developed for solute transport over infiltrating soil slopes under constant rainfall and declining sources. The model is comprised of (1) the kinematic-wave equation for overland flow, (2) a transport rate-based advection equation for overland solute transport, (3) a moment-based method for estimation of the parameters involved in the flow and solute transport equations, and (4) a semi-Lagrangian algorithm for numerical solution of the solute transport equation. Data from a single soil flume experiment under constant rainfall established the proof-of-concept for this new model. Sodium chloride was applied to the soil surface to simulate the presence of a declining diffuse pollutant. The parameters involved in the flow equation were found to take on the values that correspond to turbulent flow. With these turbulent flow parameters the simulated hydrograph displayed an initial rising limb, followed by a constant flow discharge. The profile of solute concentration exhibits a steep receding limb transitioning into an elongated tail. The solute transport rate follows a non-Gaussian distribution that does not appear to have been derived before. These theoretical hydrographs and pollutographs are in good agreement with those measured in laboratory, demonstrating the laboratory proof-of-concept for the transport rate-based model on soil and pavement blocks.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6V6C-4GG2M02-2/1/a414d8ff108e050f7bc250cd83d63114en_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectOverland flowen_US
dc.subjectSolute transport rateen_US
dc.subjectNumerical modelen_US
dc.subjectParameter estimationen_US
dc.titleTransport rate-based model for overland flow and solute transport: Parameter estimation and process simulationen_US
dc.typearticleen_US
dc.identifier.doi10.1016/j.jhydrol.2005.03.042-
uc.controloAutoridadeSim-
item.languageiso639-1en-
item.grantfulltextopen-
item.fulltextCom Texto completo-
crisitem.author.deptFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.parentdeptUniversidade de Coimbra-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.orcid0000-0002-0135-2249-
Appears in Collections:FCTUC Eng.Civil - Artigos em Revistas Internacionais
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