Index Catalog // ScholarsArchive@OSU

Creator:: Boll, Jan, Selker, John S., Shalit, Gil, and Steenhuis, Tammo S.
Abstract:: Modeling of water and solute movement requires knowledge of the nature of the spatial distribution of transport parameters. Only a few of the field experiments reported in the literature contained enough measurements to discriminate statistically between lognormal and normal distributions. To obtain statistically significant data sets, six field experiments at...
Resource Type:: Article
Full Text:: data Jan Boll, • John S. Selker, 2 Gil Shalit, 3 and Tammo S. Steenhuis 4 Abstract. Modeling of

Creator:: Steenhuis, Tammo S., Baver, Christine E., Hasanpour, Bahareh, Stoof, Cathelijne R., DiCarlo, David A., and Selker, John S.
Abstract:: To explain the dynamic behavior of the matric potential at the wetting front of gravity driven fingers, we take into account the pressure across the interface that is not continuous and depends on the radius of the meniscus, which is a function of pore size and the dynamic contact angle...
Resource Type:: Article

Creator:: Selker, J., Parlange, J.-Y., and Steenhuis, T.
Abstract:: An exact integral solution for the moisture profile in growing fingers in sandy soil is derived from Richards' equation. The solution provides moisture content along a finger as a function of position and time and provides applicable results, including the calculation of the asymptotic matric potential of a growing finger...
Resource Type:: Article
Full Text:: -232, !958. Glass, R. J., T. S. Steenhuis, and J.-Y. Parlange, Wetting front instability, 2

Creator:: Selker, J., Leclerq, P., Parlange, J.-Y., and Steenhuis, T.
Abstract:: Precise management of the changing matric potential during infiltration into unsaturated soil required the development of miniature, high-speed, planar tensiometers. A novel design was developed, with response time of less than 1 s. The applicability of the devices is shown through measurements of the matric potential in growing instabilities, both...
Resource Type:: Article
Full Text:: . Selker, T. S. Steenhuis, and R. J. Glass, Rapid measurement of moisture in two-dimensional sand slabs

Creator:: Barry, D. A., Sander, G. C., Jomaa, S., Yeghiazarian, L., Steenhuis, T. S., and Selker, J. S.
Abstract:: We explore selected aspects of J.-Y. Parlange’s contributions to hydrological transport of solutes and sediments, including both the laboratory and field scales. At the laboratory scale, he provided numerous approximations for solute transport accounting for effects of boundary conditions, linear and nonlinear reactions, and means to determine relevant parameters. Theory...
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Full Text:: J.-Y. Parlange D. A. Barry,1 G. C. Sander,2 S. Jomaa,3 L. Yeghiazarian,4 T. S. Steenhuis,5 and J. S

Creator:: Walter, M. T., Kim, J.-S., Steenhuis, T. S., Parlange, J.-Y., Heilig, A., Braddock, R. D., Selker, J. S., and Boll, J.
Abstract:: Artificial capillary barriers are being used to divert water away from sensitive underground regions. Conversely, funneled flow over natural capillary barriers may increase the danger of groundwater contamination by decreasing the travel time and contact area. There have been relatively few experimental studies of capillary barrier flow patterns. In this...
Resource Type:: Article
Full Text:: . S. Steenhuis, 3 J.-Y. Parlange, 3 A. Heilig, 3 R. D. Braddock, 4 J. S. Selker, 5 and J. Boll 6

Creator:: Rupp, David E. and Selker, John S.
Abstract:: The method of recession analysis proposed by Brutsaert and Nieber (1977) remains one of the few analytical tools for estimating aquifer hydraulic parameters at the field scale and beyond. In the method, the recession hydrograph is examined as −dQ/dt = f(Q), where Q is aquifer discharge and f is an...
Resource Type:: Article
Full Text:: recession hydrographs from sloping aquifers David E. Rupp1,2 and John S. Selker1 Received 2 April 2006

Creator:: Louie, Michael J., Shelby, Patrick M., Smesrud, Jason S., Gatchell, Lance O., and Selker, John S.
Abstract:: Passive capillary samplers (PCAPS), which sample water from the vadose zone via a hanging water column in a fiberglass wick, have shown potential to provide superior estimates of soil water flux compared to alternative methods. The objectives of this study were to evaluate the performance of PCAPS under natural rain-fed...
Resource Type:: Article
Full Text:: . Selker, B. M. Nijssen, T. S. Steenhuis, J. van Winkle, and E. Jolles, Water quality sampling under

Creator:: Assouline, S., Selker, J. S., and Parlange, J.-Y.
Abstract:: The prediction of the time to ponding following commencement of rainfall is fundamental to hydrologic prediction of flood, erosion, and infiltration. Most of the studies to date have focused on prediction of ponding resulting from simple rainfall patterns. This approach was suitable to rainfall reported as average values over intervals...
Resource Type:: Article
Full Text:: . Parlange, J.-Y., W. L. Hogarth, D. A. Barry, M. B. Parlange, R. Haverkamp, P. J. Ross, T. S. Steenhuis, D

Creator:: Rupp, David E. and Selker, John S.
Abstract:: Solutions to the Boussinesq equation describing drainage into a fully penetrating channel have been used for aquifer characterization. Two analytical solutions exist for early- and late-time drainage from a saturated, homogeneous, and horizontal aquifer following instantaneous drawdown. The solutions for discharge Q can be expressed as dQ/dt = −aQ [superscript...
Resource Type:: Article
Full Text:: . Lopez, Water Resour. Res., 35, 909–910. Parlange, J. Y., M. B. Parlange, T. S. Steenhuis, W. L. Hogarth

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