000017431 001__ 17431
000017431 005__ 20200702121610.0
000017431 0247_ $$2DOI$$a10.1029/2011GL048147
000017431 0247_ $$2WOS$$aWOS:000294785500001
000017431 0247_ $$2Handle$$a2128/20839
000017431 0247_ $$2altmetric$$aaltmetric:213471
000017431 037__ $$aPreJuSER-17431
000017431 041__ $$aeng
000017431 082__ $$a550
000017431 084__ $$2WoS$$aGeosciences, Multidisciplinary
000017431 1001_ $$0P:(DE-Juel1)129436$$aBechtold, M.$$b0$$uFZJ
000017431 245__ $$aNear-surface solute redistribution during evaporation
000017431 260__ $$aWashington, DC$$bAmerican Geophysical Union$$c2011
000017431 300__ $$aL17404
000017431 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
000017431 3367_ $$2DataCite$$aOutput Types/Journal article
000017431 3367_ $$00$$2EndNote$$aJournal Article
000017431 3367_ $$2BibTeX$$aARTICLE
000017431 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000017431 3367_ $$2DRIVER$$aarticle
000017431 440_0 $$02249$$aGeophysical Research Letters$$v38$$x0094-8276
000017431 500__ $$3POF3_Assignment on 2016-02-29
000017431 500__ $$aWe thank Patrick Wunnemann from Aachen university and Dagmar van Dusschoten of the Eco-NMR center at the IBG-3 (Forschungszentrum Julich) for their help during the MRI measurements, and Odilia Esser for the dye analysis. Jan Vanderborght would like to acknowledge the DFG funded research project Multi-scale Interfaces in Unsaturated Soil (MUSIS, FOR 1083).
000017431 520__ $$aWe present results from solute transport experiments in an evaporating composite porous medium consisting of a cylindrical inner core with coarse sand that was surrounded by a mantle with fine sand. Small volumes of dye and salt tracer were applied at the surface of the fine material of the evaporating column. The pressure head at the bottom boundary was kept constant using a hanging water table ensuring liquid phase continuity to top surface in both fine and coarse material, whereby the latter was hydraulically less conductive at these pressure conditions. Contrary to the expectation that solute accumulation at an evaporating surface is proportional to local cumulative evaporation, high concentration spots developed at the surface of the coarse material, for which IR surface temperature measurements did not indicate higher evaporation fluxes. 3D unsaturated flow and transport simulations and a second tracer experiment monitored with magnetic resonance imaging (MRI) demonstrated that preferential upward water flux in the fine sand deeper in the column and near-surface lateral water flow from the fine into the coarse sand in combination with a downward diffusive flux are responsible for the local solute accumulation. We propose that at the wet regions of a soil surface, solute accumulation is largely decoupled from local evaporation fluxes and strongly governed by relative differences of the hydraulic conductivities. The possible formation of high solute concentration spots at the surface of coarser regions usually representing preferential flow pathways during strong precipitation may have an accelerating effect on the leaching of solutes. Citation: Bechtold, M., S. Haber-Pohlmeier, J. Vanderborght, A. Pohlmeier, T. P. A. Ferre, and H. Vereecken (2011), Near-surface solute redistribution during evaporation, Geophys. Res. Lett., 38, L17404, doi:10.1029/2011GL048147.
000017431 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000017431 588__ $$aDataset connected to Web of Science
000017431 650_7 $$2WoSType$$aJ
000017431 7001_ $$0P:(DE-Juel1)VDB12272$$aHaber-Pohlmeier, S.$$b1$$uFZJ
000017431 7001_ $$0P:(DE-Juel1)129548$$aVanderborght, J.$$b2$$uFZJ
000017431 7001_ $$0P:(DE-Juel1)VDB1270$$aPohlmeier, A.$$b3$$uFZJ
000017431 7001_ $$0P:(DE-HGF)0$$aFerre, T.P.A.$$b4
000017431 7001_ $$0P:(DE-Juel1)VDB102192$$aVerreecken, H.$$b5$$uFZJ
000017431 773__ $$0PERI:(DE-600)2021599-X$$a10.1029/2011GL048147$$gVol. 38, p. L17404$$pL17404$$q38<L17404$$tGeophysical research letters$$v38$$x0094-8276$$y2011
000017431 8567_ $$uhttp://dx.doi.org/10.1029/2011GL048147
000017431 8564_ $$uhttps://juser.fz-juelich.de/record/17431/files/2011GL048147.pdf$$yOpenAccess
000017431 8564_ $$uhttps://juser.fz-juelich.de/record/17431/files/2011GL048147.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000017431 909CO $$ooai:juser.fz-juelich.de:17431$$pVDB$$pVDB:Earth_Environment$$pdriver$$popen_access$$popenaire$$pdnbdelivery
000017431 9141_ $$y2011
000017431 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000017431 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000017431 9131_ $$0G:(DE-Juel1)FUEK407$$aDE-HGF$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0
000017431 9132_ $$0G:(DE-HGF)POF3-259H$$1G:(DE-HGF)POF3-250$$2G:(DE-HGF)POF3-200$$aDE-HGF$$bMarine, Küsten- und Polare Systeme$$lTerrestrische Umwelt$$vAddenda$$x0
000017431 9201_ $$0I:(DE-Juel1)IBG-3-20101118$$gIBG$$kIBG-3$$lAgrosphäre$$x0
000017431 970__ $$aVDB:(DE-Juel1)131903
000017431 980__ $$aVDB
000017431 980__ $$aConvertedRecord
000017431 980__ $$ajournal
000017431 980__ $$aI:(DE-Juel1)IBG-3-20101118
000017431 980__ $$aUNRESTRICTED
000017431 9801_ $$aFullTexts