Index Catalog // ScholarsArchive@OSU

Creator:: Sayde, Chadi, Benitez Buelga, Javier, Rodriguez-Sinobas, Leonor, El Khoury, Laureine, English, Marshall, van de Giesen, Nick, and Selker, John S.
Abstract:: The Actively Heated Fiber Optic (AHFO) method is shown to be capable of measuring soil water content several times per hour at 0.25 m spacing along cables of multiple kilometers in length. AHFO is based on distributed temperature sensing (DTS) observation of the heating and cooling of a buried fiber-optic...
Resource Type:: Article

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:: Stewart, Ryan D., Rupp, David E., Abou Najm, Majdi R., and Selker, John S.
Abstract:: A soil’s capillarity, associated with the parameter sorptivity, is a dominant control on infiltration, particularly at the onset of rainfall or irrigation. Many mathematical models used to estimate sorptivity are only valid for dry soils. This paper examines how sorptivity and its capillary component (as wetting front potential) change with...
Resource Type:: Article
Full Text:: 10.1002/wrcr.20508 American Geophysical Union Version of Record http://hdl.handle.net/1957/47891 http

Creator:: Bogaart, Patrick W., Rupp, David E., Selker, John S., and van der Velde, Ype
Abstract:: Numerical solutions to the nonlinear Boussinesq equation, applied to a steeply sloping aquifer and assuming uniform hydraulic conductivity, indicate that late-time recession discharge decreases nearly linearly in time. When recession discharge is characterized by -dQ/dt=aQ[superscript b], this is equivalent to constant dQ/dt or b=0. This result suggests that a previously...
Resource Type:: Article
Full Text:: -3508 TC Utrecht, The Netherlands. (p.w.bogaart@uu.nl) VC 2013. American Geophysical Union. All Rights

Creator:: Troch, Peter A., Berne, Alexis, Bogaart, Patrick, Harman, Ciaran, Hilberts, Arno G. J., Lyon, Steve W., Paniconi, Claudio, Pauwels, Valentijn R. N., Rupp, David E., Selker, John S., Teuling, Adriaan J., Uijlenhoet, Remko, and Verhoest, Niko E. C.
Abstract:: Based on a literature overview, this paper summarizes the impact and legacy of the contributions of Wilfried Brutsaert and Jean-Yves Parlange (Cornell University) with respect to the current state-of-the-art understanding in hydraulic groundwater theory. Forming the basis of many applications in catchment hydrology, ranging from drought flow analysis to surface...
Resource Type:: Article
Full Text:: Arizona, 1133 E. James E. Rogers Way, Tucson, AZ 85721, USA. (patroch@hwr.arizona.edu) ©2013. American

Creator:: Selker, John S. and Haith, Douglas A.
Abstract:: Distributed temperature data are used as input and as calibration data for an energy based temperature model of a first order stream in Luxembourg. A DTS (Distributed Temperature Sensing) system with a fiber optic cable of 1500m was used to measure stream water temperature with 1m resolution each 2 min....
Resource Type:: Article
Full Text:: - tions. The research described in this paper had two major Copyright 1990 by the American Geophysical

Creator:: Vercauteren, Nikki, Huwald, Hendrik, Bou-Zeid, Elie, Selker, John S., Lemmin, Ulrich, Parlange, Marc B., and Lunati, Ivan
Abstract:: In lentic water bodies, such as lakes, the water temperature near the surface typically increases during the day, and decreases during the night as a consequence of the diurnal radiative forcing (solar and infrared radiation). These temperature variations penetrate vertically into the water, transported mainly by heat conduction enhanced by...
Resource Type:: Article
Full Text:: University, Stock- holm, Sweden. Copyright 2011 by the American Geophysical Union. 0043-1397/11

Creator:: Stewart, Ryan D., Hut, Rolf, Rupp, David E., Gupta, Hoshin, and Selker, John S.
Abstract:: We propose a novel, accurate quantification of precipitation and evaporation, as needed to understand fundamental hydrologic processes. Our system uses a collection vessel placed on top of a slender rod that is securely fixed at its base. As the vessel is deflected, either by manual perturbation or ambient forcing (for...
Resource Type:: Article

Creator:: Selker, John S. and Rupp, David E.
Abstract:: Quality concerns drive many water studies and practices, but obtaining samples from water bodies over time and space for quality determination is often difficult and expensive. We present a low-cost approach that allows integration of water samples over timescales of days to months to allow more widely distributed acquisition of...
Resource Type:: Article
Full Text:: and pressure causing pressure changes Copyright 2005 by the American Geophysical Union. 0043-1397/05

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:: by using the Boltzmann transfor- Copyright 2005 by the American Geophysical Union. 0043-1397/05

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