Search Results - "Frey, Steven K."

Simulating Climate Change Impacts on Surface Water Resources Within a Lake‐Affected Region Using Regional Climate Projections by Erler, Andre R., Frey, Steven K., Khader, Omar, d'Orgeville, Marc, Park, Young‐Jin, Hwang, Hyoun‐Tae, Lapen, David R., Richard Peltier, W., Sudicky, Edward A.

“…This study aims to assess the impact of climate change on water resources in a large watershed within the Laurentian Great Lakes region, using the fully…”
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Dual‐permeability modeling of preferential flow and snowmelt partitioning in frozen soils by Mohammed, Aaron A., Cey, Edwin E., Hayashi, Masaki, Callaghan, Michael V., Park, Young‐Jin, Miller, Killian L., Frey, Steven K.

“…The infiltrability of frozen soils modulates the partitioning of snowmelt between infiltration and runoff in cold regions. Preferential flow in macropores may…”
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Reactive Transport of Manure‐Derived Nitrogen in the Vadose Zone: Consideration of Macropore Connectivity to Subsurface Receptors by Hussain, Syed I., Frey, Steven K., Blowes, David W., Ptacek, Carol J., Wilson, David, Mayer, K. Ulrich, Su, Danyang, Gottschall, Natalie, Edwards, Mark, Lapen, David R.

“…Core Ideas Manure N transformation was modeled with different soil pore connectivities to tile drains. Macropores facilitated NH4+ oxidation reaction products…”
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Evaluating Climate Change Impacts on Soil Moisture and Groundwater Resources Within a Lake‐Affected Region by Erler, Andre R., Frey, Steven K., Khader, Omar, d'Orgeville, Marc, Park, Young‐Jin, Hwang, Hyoun‐Tae, Lapen, David R., Peltier, W. Richard, Sudicky, Edward A.

“…The impact of climate change on surface water resources is reasonably well studied. However, the impact on groundwater resources has only been considered by a…”
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Hydrological performance of ERA5 and MERRA-2 precipitation products over the Great Lakes Basin by Xu, Xiaoyong, Frey, Steven K., Ma, David

“…The Laurentian Great Lakes Basin (GLB) of North America. Precipitation is often the paramount driver in hydrological systems and dynamics. Gridded…”
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Controlling tile drainage during the growing season in Eastern Canada to reduce nitrogen, phosphorus, and bacteria loading to surface water by Sunohara, Mark D., Gottschall, Natalie, Craiovan, Emilia, Wilkes, Graham, Topp, Edward, Frey, Steven K., Lapen, David R.

“…•Controlled tile drainage was monitored from seven field-pairs over nine growing seasons.•Significant reductions in growing season tile effluent N, P, and…”
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Application of machine learning techniques for regional bias correction of snow water equivalent estimates in Ontario, Canada by King, Fraser, Erler, Andre R, Frey, Steven K, Fletcher, Christopher G

“…Snow is a critical contributor to Ontario's water-energy budget, with impacts on water resource management and flood forecasting. Snow water equivalent (SWE)…”
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Evaluation of variability among different precipitation products in the Northern Great Plains by Xu, Xiaoyong, Frey, Steven K., Boluwade, Alaba, Erler, Andre R., Khader, Omar, Lapen, David R., Sudicky, Edward

“…•Precipitation variability among the various gridded products is examined.•Ability of products to capture different precipitation intensities is…”
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Quantitative Campylobacter spp., antibiotic resistance genes, and veterinary antibiotics in surface and ground water following manure application: Influence of tile drainage control by Frey, Steven K., Topp, Edward, Khan, Izhar U.H., Ball, Bonnie R., Edwards, Mark, Gottschall, Natalie, Sunohara, Mark, Lapen, David R.

“…This work investigated chlortetracycline, tylosin, and tetracycline (plus transformation products), and DNA-based quantitative Campylobacter spp. and…”
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Dual permeability modeling of tile drain management influences on hydrologic and nutrient transport characteristics in macroporous soil by Frey, Steven K., Hwang, Hyoun-Tae, Park, Young-Jin, Hussain, Syed I., Gottschall, Natalie, Edwards, Mark, Lapen, David R.

“…•Liquid manure application was modeled with a dual permeability model.•Tile drainage management scenarios were incorporated.•Reactive transport characteristics…”
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Using SWAT, Bacteroidales microbial source tracking markers, and fecal indicator bacteria to predict waterborne pathogen occurrence in an agricultural watershed by Frey, Steven K., Topp, Edward, Edge, Thomas, Fall, Claudia, Gannon, Victor, Jokinen, Cassandra, Marti, Romain, Neumann, Norman, Ruecker, Norma, Wilkes, Graham, Lapen, David R.

“…Developing the capability to predict pathogens in surface water is important for reducing the risk that such organisms pose to human health. In this study,…”
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Quantitative real-time PCR-based assessment of tile drainage management influences on bacterial pathogens in tile drainage and groundwater by Liu, Linda, Cloutier, Michel, Craiovan, Emilia, Edwards, Mark, Frey, Steven K., Gottschall, Natalie, Lapen, David R., Sunohara, Mark, Topp, Edward, Khan, Izhar U.H.

“…This study compared the impact of controlled tile drainage (CD) and freely draining (FD) systems on the prevalence and quantitative real-time PCR-based…”
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Bromide and chloride tracer movement in macroporous tile-drained agricultural soil during an annual climatic cycle by Frey, Steven K., Rudolph, David L., Conant, Brewster

“…► We apply Br and Cl tracers to macroporous tile drained soil in fall after crop harvest. ► Tracer movement and hydrology is monitored over annual cycle…”
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Tile Drainage Management Influences on Surface‐Water and Groundwater Quality following Liquid Manure Application by Frey, Steven K., Topp, Ed, Ball, Bonnie R., Edwards, Mark, Gottschall, Natalie, Sunohara, Mark, Zoski, Erin, Lapen, David R.

“…This study investigated the potential for controlled tile drainage (CD) to reduce bacteria and nutrient loading to surface water and groundwater from…”
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Natural Stimuli Calibration with Fining Direction Regularization in an Integrated Hydrologic Model by Berg, Steven J., Grosso, Nancy R., Sherrier, Michael P., Mudrick, Kevin, Ohr, Matthias, Hwang, Hyoun‐Tae, Park, Young‐Jin, Callaghan, Michael V., Frey, Steven K., Sudicky, Edward A.

“…The interaction between surface water and groundwater during flood events is a complex process that has traditionally been described using simplified…”
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Multiscale Characterization of Vadose Zone Macroporosity in Relation to Hydraulic Conductivity and Subsurface Drainage by Frey, Steven K, Rudolph, David L

“…The purpose of this study was to quantify macroporosity distribution in relation to tile drains, and to determine any correlation between macroporosity and…”
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Viscosity dependent dual-permeability modeling of liquid manure movement in layered, macroporous, tile drained soil by Frey, Steven K., Rudolph, David L., Lapen, David R., Ball Coelho, Bonnie R.

“…A scarcity of information exists on how physical processes govern the movement of liquid manure, or other viscous fluids, through layered macroporous soils. To…”
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Spatial and Temporal Influences on Hydraulic Properties in Macroporous Tile-Drained Soil by Frey, Steven K, Rudolph, David L, Parkin, Gary W

“…This study investigated post-harvest temporal changes in macroporosity and hydraulic properties, relative to subsurface drain position, at three different…”
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Differences in phosphorus biogeochemistry and mediating microorganisms in the matrix and macropores of an agricultural clay loam soil by Hussain, Syed I., Phillips, Lori A., Hu, Yongfeng, Frey, Steven K., Geuder, David S., Edwards, Mark, Lapen, David R., Ptacek, Carol J., Blowes, David W.

“…Phosphorus (P) derived from the application of fertilizers to agricultural land can often reach surface water bodies through tile drainage systems. Phosphorus…”
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Efficient numerical incorporation of water management operations in integrated hydrosystem models: Application to tile drainage and reservoir operating systems by Hwang, Hyoun-Tae, Park, Young-Jin, Frey, Steven K., Callaghan, Michael V., Berg, Steven J., Lapen, David R., Sudicky, Edward A.

“…•We develop boundary condition linking and mesh cutoff schemes.•The schemes are applied to hydrologic control structures in integrated modelling.•The schemes…”
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