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Articles 31 - 60 of 117
Full-Text Articles in Physical Sciences and Mathematics
Geophysical Analysis Of Seasonal Montandon Gravel Ridge Water Table Fluctuation And Moisture Gradient Variation Due To Storm Events, Annie Strader
Geophysical Analysis Of Seasonal Montandon Gravel Ridge Water Table Fluctuation And Moisture Gradient Variation Due To Storm Events, Annie Strader
Honors Theses
The purpose of this research project is to continue exploring the Montandon Long-Term Hydrologic Research Site(LTHR) by using multiple geophysical methods to obtain more accurate and precise information regarding subsurface hydrologic properties of a local gravel ridge,which are important to both the health of surrounding ecosystems and local agriculture. Through using non-invasive geophysical methods such as seismic refraction, Direct Current resistivity and ground penetrating radar (GPR) instead of invasive methods such as boreholedrilling which displace sediment and may alter water flow, data collection is less likely to bias the data itself. In addition to imaging the gravel ridge subsurface, another …
Tailings Tale: Mike Horse Looms Dark Over The Blackfoot, Elizabeth L. Harrison
Tailings Tale: Mike Horse Looms Dark Over The Blackfoot, Elizabeth L. Harrison
Graduate Student Portfolios, Professional Papers, and Capstone Projects
In the spring of 1975, a heavy rain blew out an earthen dam holding back toxic metal waste from the now defunct Mike Horse mine at the headwaters of the scenic Big Blackfoot River. Federal agencies, a corporate mining giant, and the small town community of Lincoln, Montana, grapple with the repercussions and future of the watershed.
Biogeochemical Behavior Of Dissolved Arsenic And Uranium Concentrations In Public Water Supply Wells, Kevin J. Mcvey
Biogeochemical Behavior Of Dissolved Arsenic And Uranium Concentrations In Public Water Supply Wells, Kevin J. Mcvey
School of Natural Resources: Dissertations, Theses, and Student Research
Public water supply (PWS) wells currently contain dissolved uranium concentrations above the federally mandated maximum contaminant level (MCL) of 30 ppb (parts per billion) and dissolved arsenic concentrations above the 10 ppb MCL. Both uranium and arsenic are known to cause various forms of cancer in humans. Variations in total uranium concentrations in PWS wells in Nebraska indicate a relationship to the duration and rate of pumping in specific wells. Although total arsenic concentrations show some variability over time in specific wells, the relationship to pumping is not as clear. Previous studies show that iron and sulfur bacteria present in …
Water Quality Impacts From Agricultural Land Use In Karst Drainage Basins Of Sw Kentucky And Sw China, Chris Groves, Ted Baker
Water Quality Impacts From Agricultural Land Use In Karst Drainage Basins Of Sw Kentucky And Sw China, Chris Groves, Ted Baker
Earth, Environmental, and Atmospheric Sciences Faculty Publications
Karst regions are composed of soluble rock, often limestone, which leads to the formation of fissures, sinkholes, and water flow conduits such as caves. Pollutants in karst waters tend to be quickly directed and concentrated into these subsurface conduits. As a result of this and other factors, water resources are especially sensitive to contamination and pollution in karst areas. Pollutant concentrations going into karst subsurface fluvial systems are often very similar to the concentrations surfacing at outlets such as springs. Areas connected by karst conduit flows must be distinctly determined and special attention should be given to water quality impacts …
Water Quality Impacts From Agricultural Land Use In Karst Drainage Basins Of Sw Kentucky And Sw China, Chris Groves, Ted Baker
Water Quality Impacts From Agricultural Land Use In Karst Drainage Basins Of Sw Kentucky And Sw China, Chris Groves, Ted Baker
Chris Groves
Karst regions are composed of soluble rock, often limestone, which leads to the formation of fissures, sinkholes, and water flow conduits such as caves. Pollutants in karst waters tend to be quickly directed and concentrated into these subsurface conduits. As a result of this and other factors, water resources are especially sensitive to contamination and pollution in karst areas. Pollutant concentrations going into karst subsurface fluvial systems are often very similar to the concentrations surfacing at outlets such as springs. Areas connected by karst conduit flows must be distinctly determined and special attention should be given to water quality impacts …
Hydrological Monitoring With Hybrid Sensor Networks, Thomas V. Freiberger, Sahra Sedigh, Estella A. Atekwana
Hydrological Monitoring With Hybrid Sensor Networks, Thomas V. Freiberger, Sahra Sedigh, Estella A. Atekwana
Electrical and Computer Engineering Faculty Research & Creative Works
Existing hydrological monitoring systems suffer from short- comings in accuracy, resolution, and scalability. Their fragility, high power consumption, and lack of autonomy necessitate frequent site visits. Cabling requirements and large size limit their scalability and make them prohibitively expensive. The research described in this paper proposes to alleviate these problems by pairing high-resolution in situ measure- ment with remote data collection and software maintenance. A hybrid sensor network composed of wired and wireless connections autonomously measures various attributes of the soil, including moisture, temperature, and resistivity. The mea- surements are communicated to a processing server over the existing GSM cellular …
Groundwater-Level Changes In Nebraska - Spring 2002 To Spring 2003/Groundwater-Level Changes In Nebraska - Predevelopment To Spring 2003, Conservation Survey Division
Groundwater-Level Changes In Nebraska - Spring 2002 To Spring 2003/Groundwater-Level Changes In Nebraska - Predevelopment To Spring 2003, Conservation Survey Division
Conservation and Survey Division
No abstract provided.
History, Geology And Water In The Lower Platte River Valley In Eastern Nebraska, Dave Gosselin, Marv Carlson, Matt Joeckel
History, Geology And Water In The Lower Platte River Valley In Eastern Nebraska, Dave Gosselin, Marv Carlson, Matt Joeckel
Conservation and Survey Division
No abstract provided.
Water Transfers And Marketing In Nebraska, J Michaeil Jess
Water Transfers And Marketing In Nebraska, J Michaeil Jess
Conservation and Survey Division
No abstract provided.
2003 Changes To Water Transfer Law In Nebraska - Addendum, J Michael Jess
2003 Changes To Water Transfer Law In Nebraska - Addendum, J Michael Jess
Conservation and Survey Division
No abstract provided.
Water Well And Spring Map Of The Hazard 30 X 60 Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Hazard 30 X 60 Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Elizabethtown 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Elizabethtown 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Corbin 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Corbin 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Madisonville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Madisonville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Paducah 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Paducah 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Williamson 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Williamson 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Pikeville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Pikeville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Huntington 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Huntington 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Murray 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Murray 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Hopkinsville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Hopkinsville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Morehead 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Morehead 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Tell City 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Tell City 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Tompkinsville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Tompkinsville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Beach Profile Evolution Under Plunging And Spilling Breakers, Ping Wang, Bruce A. Ebersole, Ernest R. Smith
Beach Profile Evolution Under Plunging And Spilling Breakers, Ping Wang, Bruce A. Ebersole, Ernest R. Smith
Geology Faculty Publications
Beach-profile evolution, along with measurements of waves, currents, and sediment concentration, under spilling and plunging breakers of similar height were studied in the three-dimensional Large-Scale Sediment Transport Facility at the U.S. Army Engineer Research and Development Center. Unidirectional irregular waves were generated over a fine-sand beach. Beach-profile shape reached equilibrium after 1,330 and 280 min of spilling and plunging wave actions, respectively. Near the main breaker line, the profile evolved differently under plunging and spilling breakers. Across most of the midsurf zone dominated by surf bores, the equilibrium profile shapes were similar. Uniform energy dissipation per unit volume at equilibrium, …
2003 Changes To Water Transfer Law In Nebraska- Addendum, J. Michael Jess
2003 Changes To Water Transfer Law In Nebraska- Addendum, J. Michael Jess
Conservation and Survey Division
No abstract provided.
Annual Inflow Of Water To Nebraska And Annual Outflow Of Water From Nebraska, 1950 - 2003, S. E. Summerside, W. Myers, S. Olafsen-Lackey
Annual Inflow Of Water To Nebraska And Annual Outflow Of Water From Nebraska, 1950 - 2003, S. E. Summerside, W. Myers, S. Olafsen-Lackey
Conservation and Survey Division
No abstract provided.
Water Well And Spring Map Of The Harrodsburg 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Harrodsburg 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Louisville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Louisville 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Falmouth, Cincinnati, And Madison 30 X 60 Minute Quadrangles, Kentucky, Bart Davidson
Water Well And Spring Map Of The Falmouth, Cincinnati, And Madison 30 X 60 Minute Quadrangles, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.
Water Well And Spring Map Of The Somerset 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Water Well And Spring Map Of The Somerset 30 X 60 Minute Quadrangle, Kentucky, Bart Davidson
Map and Chart--KGS
No abstract provided.