Hauptseite > Publikationsdatenbank > Estimation of local scale dispersion from local breakthrough curves during a tracer test in a heterogeneous aquifer : the Lagrangian approach > print

001     437
005     20180208220149.0
024 7 _ |2 DOI
|a 10.1016/S0169-7722(01)00143-7
024 7 _ |2 WOS
|a WOS:000173429700008
037 _ _ |a PreJuSER-437
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Environmental Sciences
084 _ _ |2 WoS
|a Geosciences, Multidisciplinary
084 _ _ |2 WoS
|a Water Resources
100 1 _ |a Vanderborght, J.
|b 0
|u FZJ
|0 P:(DE-Juel1)129548
245 _ _ |a Estimation of local scale dispersion from local breakthrough curves during a tracer test in a heterogeneous aquifer : the Lagrangian approach
260 _ _ |a Amsterdam [u.a.]
|b Elsevier Science
|c 2002
300 _ _ |a 141 - 171
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 Journal of Contaminant Hydrology
|x 0169-7722
|0 3225
|v 54
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The local scale dispersion tensor, D-d, is a controlling parameter for the dilution of concentrations in a solute: plume that is displaced by groundwater flow in a heterogeneous aquifer. In this paper, we estimate the local scale dispersion froth time series or breakthrough curves, BTCs, of Br- concentrations that were measured at several pints in a fluvial aquifer during a natural gradient tracer test at Krauthausen. Locally Measured BTCs were characterized by equivalent convection dispersion parameters: equivalent velocity, nu(eq)(x) and expected equivalent dispersivity, . A Lagrangian framework was used to approximately predict these equivalent parameters in terns of the spatial covariance of log(e) transformed conductivity and the local scale dispersion coefficient.The approximate Lagrangian theory illustrates that increases with increasing travel distance and is much larger than the local scale dispersivity, lambda(d). A sensitivity analysis indicates that is predominantly determined by the transverse component of the local scale dispersion and by the correlation scale of the hydraulic conductivity in the transverse to flow direction whereas it is relatively insensitive to the longitudinal component of the local scale dispersion. By comparing predicted for a range of D-d values with obtained from locally measured BTCs, the transverse component of D-d, D-dT, was estimated. The estimated transverse local scale dispersivity, lambda(dT) = D-dT/U-1 (U-1 = mean advection velocity) is in the order of 10(1)-10(2) mm, which is relatively large but realistic for the fluvial gravel sediments at Krauthausen. (C) 2002 Elsevier Science B.V. All rights reserved.
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
653 2 0 |2 Author
|a heterogeneous aquifers
653 2 0 |2 Author
|a dilution
653 2 0 |2 Author
|a breakthrough curses
653 2 0 |2 Author
|a dispersion
700 1 _ |a Vereecken, H.
|b 1
|u FZJ
|0 P:(DE-Juel1)129549
773 _ _ |a 10.1016/S0169-7722(01)00143-7
|g Vol. 54, p. 141 - 171
|p 141 - 171
|q 54<141 - 171
|0 PERI:(DE-600)1494766-3
|t Journal of contaminant hydrology
|v 54
|y 2002
|x 0169-7722
909 C O |o oai:juser.fz-juelich.de:437
|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 2002
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)10087
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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