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dc.creatorOliveira, Luiz Fernando Coutinho de-
dc.creatorSouza, Gabriela Rezende de-
dc.creatorCorrêa, Flávia Vilela-
dc.creatorSilva, Jaíza Ribeiro Mota e-
dc.identifier.citationOLIVEIRA, L. F. C. de et al. Parameter estimation of soil hydraulic characteristics by inverse modeling of the analytical equation for unsaturated subsurface water flow. Journal of Hydroinformatics, [S. l.], 2020. DOI:
dc.description.abstractIn drip-irrigated systems, the understanding of the soil wetting pattern is essential in defining the area effectively irrigated, the spacing between the emitters and their installation depth, and the irrigation rate. Thus, this study aims to estimate soil hydraulic characteristics through inverse modeling of an analytical equation used in wetting bulb simulation based on soil moisture measurements obtained in the field. The parameters of the Gardner model, which describes the unsaturated soil hydraulic conductivity, and the van Genuchten model that describes the soil moisture retention curve, were estimated by inverse modeling techniques. The following options were considered: (A) estimating parameter β while considering the other parameters, Ko, θr, θs, α, n, and m, as known and obtained experimentally; (B) estimating parameters Ko and β while considering the experimental retention curve as known; (C) estimating parameters Ko, β, α, n, and m while considering the values of the θr and θs volumetric moisture as known; (D) estimating all the parameters of Gardner and van Genuchten models (Ko, θr, θs, α, n, and m). The results indicate that option D showed better concordance between the estimated and observed moisture values. Thus, the inverse modeling of the analytical equation is an important tool for irrigation design and management.pt_BR
dc.publisherIWA Publishingpt_BR
dc.sourceJournal of Hydroinformaticspt_BR
dc.subjectGardner modelpt_BR
dc.subjectHydraulic conductivitypt_BR
dc.subjectRetention curvept_BR
dc.subjectVan Genuchten modelpt_BR
dc.subjectWetting bulbpt_BR
dc.subjectModelo de Gardnerpt_BR
dc.subjectCondutividade hidráulicapt_BR
dc.subjectCurva de retençãopt_BR
dc.subjectModelo van Genuchtenpt_BR
dc.titleParameter estimation of soil hydraulic characteristics by inverse modeling of the analytical equation for unsaturated subsurface water flowpt_BR
Appears in Collections:DEG - Artigos publicados em periódicos
DRS - Artigos publicados em periódicos

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