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000111904 041__ $$aeng
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000111904 084__ $$2WoS$$aEnvironmental Sciences
000111904 084__ $$2WoS$$aSoil Science
000111904 084__ $$2WoS$$aWater Resources
000111904 1001_ $$0P:(DE-Juel1)VDB109775$$aKoestel, J.$$b0$$uFZJ
000111904 245__ $$aImaging Brilliant Blue Stained Soil by Means of Electrical Resistivity Tomography
000111904 260__ $$aMadison, Wis.$$bSSSA$$c2009
000111904 300__ $$a963 - 975
000111904 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000111904 440_0 $$010301$$aVadose Zone Journal$$v8$$x1539-1663$$y4
000111904 500__ $$aWe gratefully acknowledge financial support by the SFB/TR32 funded by the DFG (Deutsche Forschungsgemeinschaft). We thank Ralf-Uwe Limbach for shooting excellent photographs. Furthermore, we thank all the staff at the ICG-4 who assisted with the data collection, especially Rainer Harms and the staff from the ICG workshop for their help with digging up the lysimeter.
000111904 520__ $$aTemporal mapping of the three-dimensional spatial distribution of solute transport in soils is needed for an improved understanding of the underlying processes. Numerous studies have confirmed that Brilliant Blue imaging provides spatially highly resolved information on solute transport In soils. A drawback of the method, however, is its destructive character, which prevents three-dimensional mapping of the temporal evolution of Brilliant Blue plumes or fronts. In this study, we determined that the negative ionic charge of the Brilliant Blue molecule for moderately acid and basic environments provides an electrical conductivity contrast that can be detected by means of time domain reflectometry (TDR) and electrical resistivity tomography (ERT). Time-lapse ERT supplies three-dimensional spatiotemporally resolved image data through minimally invasive measurements but with limited spatial resolution. A joint application of Brilliant Blue imaging and (time-lapse) ERT offers potential benefits such as ERT image validation by dye staining, spatiotemporally resolved Brilliant Blue displacement studies, and improved ERT inversion regularization based on Brilliant Blue image-derived solute plume or front characteristics. This study illustrates the efforts needed to quantitatively relate Brilliant Blue concentration and electrical conductivity as well as the potential and limitations of noninvasive smoothness-constrained ERT for solute imaging in soils.
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000111904 7001_ $$0P:(DE-Juel1)VDB724$$aKasteel, R.$$b1$$uFZJ
000111904 7001_ $$0P:(DE-HGF)0$$aKemna, A.$$b2
000111904 7001_ $$0P:(DE-Juel1)129450$$aEsser, O.$$b3$$uFZJ
000111904 7001_ $$0P:(DE-Juel1)129477$$aJavaux, M.$$b4$$uFZJ
000111904 7001_ $$0P:(DE-HGF)0$$aBinley, A.$$b5
000111904 7001_ $$0P:(DE-Juel1)129549$$aVereecken, H.$$b6$$uFZJ
000111904 773__ $$0PERI:(DE-600)2088189-7$$a10.2136/vzj2008.0180$$gVol. 8, p. 963 - 975$$p963 - 975$$q8<963 - 975$$tVadose zone journal$$v8$$x1539-1663$$y2009
000111904 8567_ $$uhttp://dx.doi.org/10.2136/vzj2008.0180
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