Search Results - "Sanford, William E"

Dynamics of major and trace elements during seawater intrusion in a coastal sedimentary aquifer impacted by anthropogenic activities by Mora, Abrahan, Mahlknecht, Jürgen, Ledesma-Ruiz, Rogelio, Sanford, William E., Lesser, Luis E.

“…This study analyzed the dynamics of major ions and trace elements along the groundwater flow path of the coastal sedimentary Todos Santos aquifer in Baja…”
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Estimating specific yield and storage change in an unconfined aquifer using temporal gravity surveys by Gehman, Carter L., Harry, Dennis L., Sanford, William E., Stednick, John D., Beckman, Nathaniel A.

“…Two high‐precision gravity surveys were conducted to determine groundwater mass changes at a managed groundwater recharge site in northeastern Colorado…”
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Subsurface Microbial Diversity in Deep-Granitic-Fracture Water in Colorado by Sahl, Jason W, Schmidt, Raleigh, Swanner, Elizabeth D, Mandernack, Kevin W, Templeton, Alexis S, Kieft, Thomas L, Smith, Richard L, Sanford, William E, Callaghan, Robert L, Mitton, Jeffry B, Spear, John R

“…A microbial community analysis using 16S rRNA gene sequencing was performed on borehole water and a granite rock core from Henderson Mine, a >1,000-meter-deep…”
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Drivers of Dust-Enhanced Snowpack Melt-Out and Streamflow Timing by Fassnacht, Steven R., Duncan, Caroline R., Pfohl, Anna K. D., Webb, Ryan W., Derry, Jeffrey E., Sanford, William E., Reimanis, Danielle C., Doskocil, Lenka G.

“…The presence of dust on the snowpack accelerates snowmelt. This has been observed through snowpack and hydrometeorological measurements at a small study…”
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Snow Water Equivalent Accumulation Patterns from a Trajectory Approach over the U.S. Southern Rocky Mountains by Schrock, Isaac J. Y., Fassnacht, Steven R., Collados-Lara, Antonio-Juan, Sanford, William E., Pfohl, Anna K. D., Morán-Tejeda, Enrique

“…The spatial characteristics and patterns of snow accumulation and ablation inform the amount of water stored and subsequently available for runoff and the…”
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Headwater regions- Physical, ecological, and social approaches to understand these areas： introduction to the special issue by FASSNACHT, Steven R., WEBB, Ryan W., SANFORD, William E.

“…Around the world human communities and natural ecosystems both rely on headwater regions for vital resources. Resources provided include groundwater sto- rage…”
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Stable and radio-isotope analysis to determine recharge timing and paleoclimate of sandstone aquifers in central and southeast Libya by Al Faitouri, Mohamed, Sanford, William E.

“…Stable isotopes of water and 14 C activities (percent modern carbon, pmc) were used to estimate the timing of recharge and paleoclimatic conditions during…”
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Lanthanide Field Tracers Demonstrate Enhanced Transport of Transuranic Radionuclides by Natural Organic Matter by McCarthy, John F., Sanford, William E., Stafford, Paige L.

“…Transuranic (TRU) radionuclides buried 25 years ago in shallow unlined disposal trenches in a fractured shale saprolite had been detected in groundwater from…”
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Mobilization of transuranic radionuclides from disposal trenches by natural organic matter by McCarthy, John F, Czerwinski, Kenneth R, Sanford, William E, Jardine, Philip M, Marsh, J.Daniel

“…Transuranic (TRU) radionuclides in groundwater at the Oak Ridge National Laboratory migrate rapidly and with little retardation of the radionuclides over…”
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Modeling field-scale multiple tracer injection at a low-level waste disposal site in fractured rocks: Effect of multiscale heterogeneity and source term uncertainty on conceptual understanding of mass transfer processes by Gwo, Jin-Ping, Jardine, Philip M., Sanford, William E.

“…Multiple factors may affect the scale-up of laboratory multi-tracer injection into structured porous media to the field. Under transient flow conditions and…”
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Tracer Mass Recovery in Fractured Aquifers Estimated from Multiple Well Tests by Sanford, William E., Cook, Peter G., Robinson, Neville I., Weatherill, Douglas

“…Forced‐gradient tracer tests in fractured aquifers often report low mass recoveries. In fractured aquifers, fractures intersected by one borehole may not be…”
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Stream/aquifer interactions at Great Sand Dunes National Monument, Colorado: influences on interdunal wetland disappearance by Wurster, Frederic C, Cooper, David J, Sanford, William E

“…Between 1937 and 1995 a complex of more than 100 interdunal wetlands disappeared from Great Sand Dunes National Monument, Colorado. We investigated three…”
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Analysis of a Vertical Dipole Tracer Test in Highly Fractured Rock by Sanford, William E., Cook, Peter G., Dighton, John C.

“…The results of a vertical dipole tracer experiment performed in highly fractured rocks of the Clare Valley, South Australia, are presented. The injection and…”
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Site Characterization and Containment Assessment with Dissolved Gases by Sanford, William E, Solomon, D. Kip

“…A passive in situ headspace sampler has been developed for the collection of dissolved gases in ground water during tracer tests using dissolved, inert gases…”
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Flow characteristics of rock-reed filters for treatment of landfill leachate by Sanford, William E., Steenhuis, Tammo S., Surface, Jan M., Peverly, John H.

“…To characterize the flow patterns of wastewater through subsurface-flow rock-reed filters, a combination of tracer studies and specific conductance…”
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Estimating specific yield and storage change in an unconfined aquifer using temporal gravity surveys by Gehman, Carter L, Harry, Dennis L, Sanford, William E, Stednick, John D, Beckman, Nathaniel A

“…Two high‐precision gravity surveys were conducted to determine groundwater mass changes at a managed groundwater recharge site in northeastern Colorado…”
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Government-Minority Dialogue in Austria: The Ethnic Advisory Councils by SANFORD, WILLIAM E.

“…The purpose of this article is to analyze the functioning of Austria's Ethnic Advisory Councils as institutionalized mechanisms for government-minority…”
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Electronic isotopic substitution in flow and stopped flow nuclear magnetic resonance studies of chemical reactions by Fyfe, Colin A, Sanford, William E, Yannoni, Costantino S

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Hydraulic conductivity of gravel and sand as substrates in rock-reed filters by Sanford, William E., Steenhuis, Tammo S., Parlange, J.-Yves, Surface, Jan M., Peverly, John H.

“…Long-term use of a constructed wetland to treat landfill leachate requires that the saturated hydraulic conductivity be maintained and clogging avoided to…”
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Upward migration of radio-cesium and strontium in a sand-filled lysimeter by Sanford, William E., Larsen, Ingvar L., McConnell, John W., Rogers, Robert D.

“…The upward migration of 134Cs, 137Cs, and 90Sr was observed in a silica sand-filled lysimeter at the Field Lysimeter Investigations: Low Level Waste Data Base…”
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