Hauptseite > Publikationsdatenbank > Characterisation of the field-saturated hydraulic conductivity on a hillslope : in situ single ring pressure infiltrometer measurements > print

001     423
005     20180208232020.0
024 7 _ |2 DOI
|a 10.1016/S0022-1694(02)00052-5
024 7 _ |2 WOS
|a WOS:000176261700014
037 _ _ |a PreJuSER-423
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Engineering, Civil
084 _ _ |2 WoS
|a Geosciences, Multidisciplinary
084 _ _ |2 WoS
|a Water Resources
100 1 _ |a Mertens, J.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a Characterisation of the field-saturated hydraulic conductivity on a hillslope : in situ single ring pressure infiltrometer measurements
260 _ _ |a Amsterdam [u.a.]
|b Elsevier Science
|c 2002
300 _ _ |a 217 - 229
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 263
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Spatial variability of surface hydraulic properties is an important factor for infiltration and runoff processes in agricultural fields. At 120 locations on a hillslope, steady-state infiltration rates were measured at two applied pressure heads with a single-ring infiltrometer. The solution of two steady-state infiltration equations for each location (the simultaneous-equation approach, SEA) yielded 41 negative alpha-values, 79 positive alpha values and 120 positive K-fs-values. The sensitivity of K-fs and alpha to small measurement errors was estimated using a Monte-Carlo simulation (MC). Results of this MC simulation showed that the uncertainty on alpha is extremely high while the uncertainty on K-fs is fairly small. Hence, although the pressure infiltrometer technique as applied here is useful to estimate K-fs at each measurement location, it is not suited for the estimation of an alpha-value at each measurement location. A new procedure is proposed for the simultaneous estimation of one overall 'field alpha' and the 79 K-fs values of measurement locations having a positively calculated a using SEA. Using this field alpha, K-fs values for the other locations with a negative a are hence determined. Finally, the spatial correlation of K-fs on the hillslope is examined. Ranges of ln(K-fs) between 2.85 and 3.8 m were observed, respectively, for the omnidirectional case and the y direction along the hillslope mu. (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 hydraulic conductivity
653 2 0 |2 Author
|a hillslope
653 2 0 |2 Author
|a inverse parameter estimation
653 2 0 |2 Author
|a sensitivity analysis
653 2 0 |2 Author
|a spatial variability
700 1 _ |a Jacques, D.
|b 1
|0 P:(DE-HGF)0
700 1 _ |a Vanderborght, J.
|b 2
|u FZJ
|0 P:(DE-Juel1)129548
700 1 _ |a Feyen, J.
|b 3
|0 P:(DE-HGF)0
773 _ _ |a 10.1016/S0022-1694(02)00052-5
|g Vol. 263, p. 217 - 229
|p 217 - 229
|q 263<217 - 229
|0 PERI:(DE-600)1494766-3
|t Journal of contaminant hydrology
|v 263
|y 2002
|x 0169-7722
909 C O |o oai:juser.fz-juelich.de:423
|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)10081
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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