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dc.contributor.authorMoret-Fernández, David-
dc.contributor.authorGonzález-Cebollada, César-
dc.contributor.authorLatorre Garcés, Borja-
dc.identifier.citationMoret-Fernández D, González-Cebollada C, Latorre B. Microflowmeter-tension disc infiltrometer - Part I: Measurement of the transient infiltration rate. Journal of Hydrology 466: 151-158 (2012)es_ES
dc.description30 Pags., 6 Figs., 5 Tabls. The definitive version is available at: http://www.sciencedirect.com/science/journal/00221694es_ES
dc.description.abstractThe tension disc infiltrometer is a useful tool for in situ measurements of soil hydraulic characteristics in the vadose zone. Soil hydraulic properties can be estimated from an analysis of the transient section of the cumulative infiltration curve, which is commonly measured from the water-level drop in the reservoir tower. This paper presents a new design of tension disc infiltrometer with the disc separated from a Mariotte tube, the bubble tower and the water-supply reservoir, in which the full infiltration rate curve is measured with a microflowmeter plus Mariotte tube system (MF). This disc infiltrometer was tested in the laboratory on two 1D sand columns and two 1D and 3D 2-mm sieved loam soil columns, and in the field in three different soil-structure conditions. The cumulative infiltration and infiltration rate curves recorded with the MF method were subsequently compared with the corresponding curves measured from the water-level drop in the water-reservoir tower (WLD). Although the cumulative infiltration curves calculated with the MF method fitted well with those obtained using the WLD technique, the laboratory experiments showed that the MF system allowed more accurate estimates of the infiltration rate curves. Smoothing data using a simple moving average algorithm made it possible to improve the characterization of the infiltration rate curves. These results were corroborated in field experiments, in which the MF system proved to be more robust than the standard WLD procedure. These results confirm that the disc infiltrometer design proposed here can provide a solid alternative to the classical disc infiltrometer, and, as described in the second paper of this series (Moret-Fernández et al., 2012a), offers an alternative for estimating the soil hydraulic properties from an analysis of the infiltration rate curves.es_ES
dc.description.sponsorshipThis paper describes a modification of an original infiltrometer design for which a patent was applied (Infiltrómetro de disco y procedimiento de medida de la tasa de infiltración en un suelo empleando dicho infiltrometro.; P200930735; D. Moret-Fernández and C. González-Cebollada, Priority Date: 25th spetember 2009; Withdrawal Date: 25th spetember 2010). The research was supported by the Ministerio de Ciencia e Innovación of Spain (Grant AGL2010-22050-C03-02).-
dc.subjectCumulative infiltrationes_ES
dc.subjectWater level dropes_ES
dc.subjectSoil hydraulic propertieses_ES
dc.titleMicroflowmeter-tension disc infiltrometer - Part I: Measurement of the transient infiltration ratees_ES
dc.description.peerreviewedPeer reviewedes_ES
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