References of "Koestel, Johannes"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailComparison of Heterogeneous Transport Processes Observed with Electrical Resistivity Tomography in Two Soils
Garré, Sarah ULg; Koestel, Johannes; Günther, Thomas et al

in Vadose zone journal (2010), 9(2), 336-349

Preferential flow in soils can manifest itself in several ways. To illustrate this, we analyzed solute transport during a step tracer experiment in two soils expected to differ in their governing ... [more ▼]

Preferential flow in soils can manifest itself in several ways. To illustrate this, we analyzed solute transport during a step tracer experiment in two soils expected to differ in their governing transport processes: a loamy sand and a silty soil. By combining electrical resistivity tomography (ERT), time domain reflectometry, and effluent measurements, we observed different preferential flow phenomena. The transport process was characterized using voxel- and column-scale effective convective–dispersive equation (CDE) parameters, local velocities, and leaching surfaces. At the column scale, transport in the loamy sand was dominated by a homogenous convective–dispersive transport behavior, but at the scale of the voxel, preferential transport was observed. Transport in the silty soil was considerably more heterogeneous. Preferential flow was identified using ERT, voxel- and column-scale effective CDE parameters, local velocities, and leaching surfaces. In these soils, a clear influence of soil layering on solute transport was observed. [less ▲]

Detailed reference viewed: 26 (2 ULg)
Peer Reviewed
See detailComparison of transport in lysimeters with undisturbed loamy sand and silty soil using non-invasive imaging with electrical resistivity tomography
Garré, Sarah ULg; Koestel, Johannes; Javaux, Mathieu et al

Conference (2009, September)

Detailed reference viewed: 16 (2 ULg)
Peer Reviewed
See detailComparison of transport in lysimeters with undisturbed loamy sand and silty soil using non invasive imaging with electrical resistivity tomography.
Garré, Sarah ULg; Koestel, Johannes; Vanderborght, Jan et al

in Geophysical Research Abstracts (2009, April 23)

Detailed reference viewed: 11 (4 ULg)
Peer Reviewed
See detailDetecting preferential flow and transport in soils using electrical resistivity tomography
Vanderborght, Jan; Oberdoerster, Christoph; Garré, Sarah ULg et al

Conference (2009)

Detailed reference viewed: 47 (1 ULg)
Peer Reviewed
See detailElectrical resistivyt tomography as tool to image preferential flow pathways in soils
Kasteel, Roy; Garré, Sarah ULg; Koestel, Johannes et al

Conference (2009)

Detailed reference viewed: 11 (2 ULg)