Home > Publications database > In Situ Long-Term Chloride Transport through a Layered, Nonsaturated Subsoil . 2 . Effect of Layering on Solute Transport Processes > print

001     41657
005     20180210134012.0
024 7 _ |2 WOS
|a WOS:000227469200028
037 _ _ |a PreJuSER-41657
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Environmental Sciences
084 _ _ |2 WoS
|a Soil Science
084 _ _ |2 WoS
|a Water Resources
100 1 _ |a Javaux, M.
|b 0
|u FZJ
|0 P:(DE-Juel1)129477
245 _ _ |a In Situ Long-Term Chloride Transport through a Layered, Nonsaturated Subsoil . 2 . Effect of Layering on Solute Transport Processes
260 _ _ |a Madison, Wis.
|b SSSA
|c 2004
300 _ _ |a 1331 - 1339
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Vadose Zone Journal
|x 1539-1663
|0 10301
|v 3
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a We analyze observed Cl- transport during a large-scale in situ unsaturated infiltration experiment in terms of the observation scale of the transport process and the physical stratification of the Tertiary sedimentary flow domain. By comparing piston flow and local velocity profiles, we show that velocity variations cannot be explained by water content changes alone. We also demonstrate that by comparing a layered convection - dispersion ( CD) model with the observations, the dispersivity profile cannot be explained with the model, which produced unrealistic local dispersivity values. These discrepancies were partially explained by nonrepresentative sampling using porous cup solution samplers (PCS). We hypothesize that fingering flow or convergence phenomena below sand - clay interfaces leads to nonrepresentative artificially high dispersivity values. Velocity and dispersivity values immediately above the clay layers, however, seem more reliable to convergence and more lateral mixing induced by a larger water Following the criteria derived from the Chuoke equation, we show that the subsoil can be subjected to fingering flow. We found that this process likely persisted for some 17 yr. Therefore, we conclude that the fine-textured clayey layers regulated the flow rate through time, approaching a quasi-steady-state flow condition. Overall, solute transport processes in the unsaturated layered subsoil appeared to be very strongly influenced by stratification of the flow domain. An highly variable flow field was induced by the clay layers in a sandy deposit, while the local PCS sampling devices were likely too small to properly assess the mixing regime at this large scale.
536 _ _ |a Chemie und Dynamik der Geo-Biosphäre
|c U01
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK257
|x 0
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
|2 WoSType
700 1 _ |a Vanclooster, M.
|b 1
|0 P:(DE-HGF)0
773 _ _ |g Vol. 3, p. 1331 - 1339
|p 1331 - 1339
|q 3<1331 - 1339
|0 PERI:(DE-600)2088189-7
|t Vadose zone journal
|v 3
|y 2004
|x 1539-1663
909 C O |o oai:juser.fz-juelich.de:41657
|p VDB
913 1 _ |k U01
|v Chemie und Dynamik der Geo-Biosphäre
|l Chemie und Dynamik der Geo-Biosphäre
|b Environment (Umwelt)
|0 G:(DE-Juel1)FUEK257
|x 0
914 1 _ |y 2004
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |k ICG-IV
|l Agrosphäre
|d 31.12.2006
|g ICG
|0 I:(DE-Juel1)VDB50
|x 0
970 _ _ |a VDB:(DE-Juel1)57649
980 _ _ |a VDB
980 _ _ |a ConvertedRecord
980 _ _ |a journal
980 _ _ |a I:(DE-Juel1)IBG-3-20101118
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IBG-3-20101118

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