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Hillslope run-off thresholds with shrink-swell clay soils

Creator:: Stewart, Ryan D., Abou Najm, Majdi R., Rupp, David E., Lane, John W., Uribe, Hamil C., Luis Arumí, José, and Selker, John S.
Abstract:: Irrigation experiments on 12 instrumented field plots were used to assess the impact of dynamic soil crack networks on infiltration and run-off. During applications of intensity similar to a heavy rainstorm, water was seen being preferentially delivered within the soil profile. However, run-off was not observed until soil water content...
Resource Type:: Article
Full Text:: : 511. DOI: 10.2136/ vzj2007.0005. Arnold JG, Potter KN, King KW, Allen PM. 2005. Estimation of soil

The Soil Moisture Active Passive Marena, Oklahoma, In Situ Sensor Testbed (SMAP-MOISST): Testbed Design and Evaluation of In Situ Sensors

Creator:: Cosh, Michael H., Ochsner, Tyson E., McKee, Lynn, Dong, Jingnuo, Basara, Jeffrey B., Evett, Steven R., Hatch, Christine E., Small, Eric E., Steele-Dunne, Susan C., Zreda, Marek, and Sayde, Chadi
Abstract:: n situ soil moisture monitoring networks are critical to the development of soil moisture remote sensing missions as well as agricultural and environmental management, weather forecasting, and many other endeavors. These in situ networks utilize a variety of sensors and installation practices, which confounds the development of a unified reference...
Resource Type:: Article
Full Text:: (Michael.cosh@ars.usda.gov). Vadose Zone J. doi:10.2136/vzj2015.09.0122 Received 5 Sept. 2015. Accepted 14

Solute and sediment transport at laboratory and field scale: Contributions of J.-Y. Parlange

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...
Resource Type:: Article

State of the Art in Large-Scale Soil Moisture Monitoring

Creator:: Ochsner, Tyson E., Cosh, Michael H., Cuenca, Richard H., Dorigo, Wouter A., Draper, Clara S., Hagimoto, Yutaka, Kerr, Yann H., Larson, Kristine M., Njoku, Eni G., Small, Eric E., and Zreda, Marek
Abstract:: Soil moisture is an essential climate variable influencing land–atmosphere interactions, an essential hydrologic variable impacting rainfall–runoff processes, an essential ecological variable regulating net ecosystem exchange, and an essential agricultural variable constraining food security. Large-scale soil moisture monitoring has advanced in recent years, creating opportunities to transform scientific understanding of soil...
Resource Type:: Article
Full Text:: moisture monitoring. Soil Science Society of America Journal, 77(6), 1888-1919. doi:10.2136

Flow Processes in the Dry Regime: The Effect on Capillary Barrier Performance

Creator:: Jansik, D. P., Wildenschild, D., and Rosenberg, N. D.
Abstract:: Engineered capillary barriers typically consist of two layers of granular materials designed so that the contrast in material hydraulic properties and sloping interface retain infiltrating water in the upper layer. We conducted two benchtop capillary barrier experiments, followed by interpretation and numerical modeling. The hydraulic parameters for two coarse materials...
Resource Type:: Article
Full Text:: Zone J. 10:1173–1184 doi:10.2136/vzj2010.0128 Received 26 Oct. 2010. Posted online 31 Aug. 2011

Calibration of soil moisture sensing with subsurface heated fiber optics using numerical simulation

Creator:: Benítez‐Buelga, Javier, Rodríguez‐Sinobas, Leonor, Sánchez Calvo, Raul, Gil‐Rodríguez, Maria, Sayde, Chadi, and Selker, John S.
Abstract:: The heat pulse probe method can be implemented with actively heated fiber optics (AHFO) to obtain distributed measurements of soil water content (θ) by using reported soil thermal responses measured by Distributed Temperature Sensing (DTS) and with a soil-specific calibration relationship. However, most reported applications have been calibrated to homogeneous...
Resource Type:: Article
Full Text:: - Probe Heat-Pulse Approach, Vadose Zone J., 13(11), doi:10.2136/vzj2014.02.0014. Bittelli, M. (2011

Feasibility of soil moisture monitoring with heated fiber optics

Creator:: Sayde, Chadi, Gregory, Christopher, Gil‐Rodriguez, Maria, Tufillaro, Nick, Tyler, Scott, van de Giesen, Nick, English, Marshal, Cuenca, Richard, and Selker, John S.
Abstract:: Accurate methods are needed to measure changing soil water content from meter to kilometer scales. Laboratory results demonstrate the feasibility of the heat pulse method implemented with fiber optic temperature sensing to obtain accurate distributed measurements of soil water content. A fiber optic cable with an electrically conductive armoring was...
Resource Type:: Article
Full Text:: probe measurements, Soil Sci. Soc. Am. J. , 69(3), 599–606, doi:10.2136/sssaj2004.0174. Mortensen, A. P

Tension infiltrometer enhancements with automated pneumatic control and more durable base plate

Creator:: Selker, J. S., Suter, J. D., Cuenca, R. H., Flugstad, B. A., and Kelly, S. F.
Abstract:: Measurement of soil hydraulic retention and conduction parameters using tension infiltrometers has been found to be useful but has suffered from unreliable instrument membranes at the soil interface and the need for manual control, which limits the range of boundary conditions that can feasibly be established. An automated design is...
Resource Type:: Article
Full Text:: unsaturated fractured rock, Vadose Zone J., 4, 885–890, doi:10.2136/vzj2004.0135. Clothier, B. E., and I

Soil Water Potential Requirement for Germination of Winter Wheat

Creator:: Wuest, Stewart B. and Lutcher, Larry K.
Abstract:: Abstract: In semi-arid climates, seed is often sown into soil with inadequate water for rapid germination. Distinguishing between adequate and marginal water can be difficult. Planting decisions become increasingly complicated when one considers possible differences between cultivars. This study was designed to measure the soil water potential limits for rapid,...
Resource Type:: Article
Full Text:: :10.2136/sssaj2012.0110 Received 28 Mar. 2012 *Corresponding author (stewart.wuest@ars.usda.gov

Are oxygen limitations under recognized regulators of organic carbon turnover in upland soils?

Creator:: Keiluweit, Marco, Nico, Peter S., Kleber, Markus, and Fendorf, Scott
Abstract:: Understanding the processes controlling organic matter (OM) stocks in upland soils, and the ability to management them, is crucial for maintaining soil fertility and carbon (C) storage as well as projecting change with time. OM inputs are balanced by the mineralization (oxidation) rate, with the difference determining whether the system...
Resource Type:: Article

ScholarsArchive@OSU

Hillslope run-off thresholds with shrink-swell clay soils

The Soil Moisture Active Passive Marena, Oklahoma, In Situ Sensor Testbed (SMAP-MOISST): Testbed Design and Evaluation of In Situ Sensors

Solute and sediment transport at laboratory and field scale: Contributions of J.-Y. Parlange

State of the Art in Large-Scale Soil Moisture Monitoring

Flow Processes in the Dry Regime: The Effect on Capillary Barrier Performance

Calibration of soil moisture sensing with subsurface heated fiber optics using numerical simulation

Feasibility of soil moisture monitoring with heated fiber optics

Tension infiltrometer enhancements with automated pneumatic control and more durable base plate

Soil Water Potential Requirement for Germination of Winter Wheat

Are oxygen limitations under recognized regulators of organic carbon turnover in upland soils?

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