Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.jconhyd.2006.10.001
Titel (primär) Comment on "Analysis of groundwater contamination using concentration-time series recorded during an integral pumping test: bias introduced by strong concentration gradients within the plume" by Allelign Zeru and Gerhard Schafer
Autor Bayer-Raich, M.; Jarsjö, J.; Teutsch, G.
Quelle Journal of Contaminant Hydrology
Erscheinungsjahr 2007
Department GF; HDG
Band/Volume 90
Heft 3-4
Seite von 240
Seite bis 251
Sprache englisch
Keywords Mass flux; Mass flow rate; Integral pumping; Groundwater; Pollution; Natural attenuation
Abstract We consider the results of a recent paper in this journal [Zeru, A. and Schäfer, G., 2005. Analysis of groundwater contamination using concentration-time series recorded during an integral pumping test: Bias introduced by strong concentration gradients within the plume. Journal of Contaminant Hydrology 81 (2005) 106-124], which addresses the field-scale characterisation of contaminant plumes in groundwater. There, it is concluded that contaminant concentration gradients can bias Integral Pumping Test (IPT) interpretations considerably, in particular if IPTs are conducted in advective fronts of contaminant plumes. We discuss implications of this setting and also argue that the longitudinal and transverse dispersivities used in the examples of Zeru and Schäfer (2005) of up to 30 m and 3 m, respectively, are generally very high for the here relevant capture zone scale (< 20 m). However, regardless of both longitudinal and transverse concentration gradients, we further show through a counter-example that IPT results are unbiased as long as the concentration attenuation along the flow direction is linear over the capture zone extent.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1639
Bayer-Raich, M., Jarsjö, J., Teutsch, G. (2007):
Comment on "Analysis of groundwater contamination using concentration-time series recorded during an integral pumping test: bias introduced by strong concentration gradients within the plume" by Allelign Zeru and Gerhard Schafer
J. Contam. Hydrol. 90 (3-4), 240 - 251 10.1016/j.jconhyd.2006.10.001