Now showing items 1052-1071 of 1767

    • Observations in Granite Quarries Facilitate Understanding the Hydrogeology of the Georgia Piedmont 

      Wenner, David B.; Dowd, John F. (Georgia Institute of Technology, 2007-03)
      Because the crystalline bedrock of the Piedmont Province in Georgia is so poorly exposed, it can be difficult to readily understand how water flows in the subsurface and why bedrock well yields in the Piedmont are so ...
    • Observed and Simulated Recharge to the Claiborne Aquifer at the Plains, Georgia Research Site 

      Bosch, David D.; Hicks, David W. (Georgia Institute of TechnologyInstitute of Natural Resources, 1993-04)
      Water-table measurements taken at a 0.81 ha research plot in the Claiborne aquifer recharge area over a three-year period from 1989 to 1991 are reported. Analysis indicates the rate of total applied water can be used to ...
    • Observing and Understanding the Dynamics of Algal Photosynthesis and Respiration 

      Lin, ZhuLu; Beck, M. B. (Georgia Institute of TechnologyInstitute of Ecology, 2001-03)
      Experimental manipulations of an aquaculture pond have been observed using the University of Georgia's Environmental Process Control Laboratory. The data, which are comprehensive, cover a continuous five-month period with ...
    • Occurrence and Source of Natural Radioactivity in Ground Water From the Upper Floridan Aquifer in the Apalachichola Embayment-Gulf Trough Area, Georgia 

      Gorday, Lee L.; Kellam, Madeleine F. (Georgia Institute of TechnologyInstitute of Natural Resources, 1989-05)
    • Occurrence of Herbicide Degradation Compounds in Streams and Ground Water in Agricultural Areas of Southern Georgia, 2002 

      Pittman, John R.; Berndt, Marian P. (Georgia Institute of TechnologyInstitute of Ecology, 2003-04)
      Water samples were collected during 2002 from 2 streams and 28 wells located in agricultural areas in southern Georgia and analyzed for more than 180 pesticides (including herbicides, insecticides, and their degradation ...
    • Occurrence of Perched Saturation and Interflow Over an Argillic Horizon in a Low Relief Hillslope 

      Greco, James; Jackson, C. Rhett (Georgia Institute of Technology, 2007-03)
      Many of the soils in the southeastern US are characterized by an argillic, or clay horizon, that largely parallels the soil surface at depths ranging from a few centimeters to 100 centimeters. The degree to which ...
    • Oconee River Basin Plan: A Focus on the Law and Process 

      Pickett, Ann (Georgia Institute of TechnologyInstitute of Ecology, 1999-03)
      The River Basin Planning Act requires Georgia Environmental Protection Division (EPD) to complete river basin plans on 14 major river basins that comprise the state of Georgia. This paper examines the application of the ...
    • Oconee Rivers Greenway: Critical Path Analysis as a Planning Tool 

      Ramsey, William L.; DeMeo, Terry A. (Georgia Institute of TechnologyInstitute of Natural Resources, 1993-04)
      Greenways, linear open space corridors, can act as water resource management tools. Athens-Clarke County is planning a greenway system along the Oconee Rivers. The project's size and complexity require an objective planning ...
    • Oconee Rivers stream improvement demonstration projects 

      Ruhlman, M.; McHaney, R.; Ward, J.; Poole, D. (Georgia Institute of TechnologyInstitute of Ecology, 2003-04)
      Two stream improvement projects were completed along the Middle and North Oconee Rivers in local parks in Athens, Georgia. Both projects were facilitated by the Upper Oconee Watershed Network (UOWN) through a challenge ...
    • Okefenokee Swamp Hydrology 

      Loftin, Cynthia S. (Georgia Institute of TechnologyInstitute of Ecology, 1997-03)
      The Okefenokee Swamp is one of North America's largest freshwater wetlands. Swamp hydrology is largely controlled by precipitation and evapotranspiration; regional topographic features of the swamp control surface water ...
    • Okefenokee Swamp Macroinvertebrates 

      Bilger, Erika E.; Batzer, Darold P.; McHugh, J. V. (Georgia Institute of TechnologyInstitute of Ecology, 2001-03)
      The Okefenokee Swamp is one of the largest wetlands in North America, covering 3781 km² of the Southeastern Atlantic Coastal Plain. Despite the prominence and magnitude of the Okefenokee, little is known about the resident ...
    • On wings of wax: Georgia’s flight over the Chattahoochee 

      Sherk, George William (Georgia Institute of TechnologyInstitute of Ecology, 2003-04)
      The draft allocation formula agreements that have been prepared to implement the ACF and ACT River Basin Compacts are both substantively and procedurally flawed. They are substantively flawed in that they attempt to ...
    • On-line Monitoring and Dynamic Modeling of Wastewater Treatment 

      Liu, Rong; Beck, M. B. (Georgia Institute of TechnologyInstitute of Ecology, 1999-03)
      Success in the development and application of a model requires, as a rule, high-quality field data. In general, studies in controlling the dynamics of wastewater treatment processes have been poorly served in their access ...
    • Open-celled Pavers: An Environmental Alternative to Traditional Paving Materials 

      Nichols, David B. (Georgia Institute of TechnologyInstitute of Natural Resources, 1993-04)
      Replacing traditional impervious paving materials with porous pavements such as open-celled pavers is one method that site designers can use to negate the harmful environmental impacts of land development upon surface ...
    • Operate a wastewater treatment plant from the palm of your hand 

      Hall, James L.; Harrington, William C. (Georgia Institute of TechnologyInstitute of Ecology, The University of Georgia, 2005-04)
      As a result of tighter fiscal budgets, municipal utilities are more frequently moving towards facility improvements rather than building new facilities. Work force down sizing is occurring and as a result the operations ...
    • Opportunities and Impediments for Pollution Prevention in Crop Production 

      Risse, L. Mark (Georgia Institute of TechnologyInstitute of Ecology, 1997-03)
      Agriculture is one of several industries that face criticism today because of its impact on the environment. Pollution prevention technologies can go a long way toward addressing these concerns. They could also be beneficial ...
    • Optimal Placement of Monitoring Sensors in Lakes 

      Nam, Kijin; Aral, Mustafa Mehmet (Georgia Institute of Technology, 2007-03)
      Long-term surveillance of aquatic environments is a costly endeavor, thus a sound strategy is necessary to select the locations of monitoring stations to improve the quality of a monitoring system. This can be accomplished ...
    • Optimal Real-time Activated Sludge Regulation 

      Kabouris, John C.; Georgakakos, Aristidis Peter (Georgia Institute of TechnologyInstitute of Natural Resources, 1991)
      An application of optimal control techniques in regulating a conventional activated sludge process (Figure 1) is presented. In this process, organics in the influent wastewater (substrate) serve as energy source for the ...
    • Optimitation of the DeKalb County fats, oils, and grease management program 

      De Taboada, Dora D'Andrea (Georgia Institute of Technology, 2013-04)
      The formal Fats, Oil, and Grease (FOG) Management Program was optimized in order to increase the productivity by efficiently operating its current re-sources. Using the same number of inspectors and the same equipment, the ...
    • Optimization of Ground-Water Pumpage Distribution to Limit Chloride Plume Expansion in the Upper Floridan Aquifer near Brunswick, Georgia 

      Cherry, Gregory S.; Payne, Dorothy F. (Georgia Institute of Technology, 2007-03)
      Since the late 1950s, and until recently, the salinity of ground water in the Upper Floridan aquifer near downtown Brunswick, Georgia, has increased, with chloride concentrations exceeding 250 milligrams per liter in an ...