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Civil and Environmental Engineering

Water quality

Brigham Young University

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Full-Text Articles in Engineering

Evaluation Of Urbanization And Impacts On Water Quality In Nottawasaga Bay Using An Integrated 3-D Modeling Framework, Venkat S. Kolluru, Shwet Prakash, Doug Hodgins Jun 2014

Evaluation Of Urbanization And Impacts On Water Quality In Nottawasaga Bay Using An Integrated 3-D Modeling Framework, Venkat S. Kolluru, Shwet Prakash, Doug Hodgins

International Congress on Environmental Modelling and Software

The Lake Simcoe Region Conservation Authority (LSRCA) in partnership with the Nottawasaga Valley Conservation Authority (NVCA) has been interested in addressing the cumulative impacts of land use changes due to urbanization to two water bodies, the Nottawasaga River and Nottawasaga Bay. In order to assess these impacts, an Assimilative Capacity Studies (ACS) was planned for decision-making on land use. The ACS involved application of a comprehensive 3-D hydrodynamic and transport model called GEMSS®. The model was calibrated both for hydrodynamics (currents and drogue trajectories) and baseline water quality measurements. The model was then applied to simulate conditions which are representative …


Quantifying Mass Sediment Movement In Deer Creek Reservoir During Spring Runoff And Potential Water Quality Impacts, Colin Rodger Ricks Oct 2011

Quantifying Mass Sediment Movement In Deer Creek Reservoir During Spring Runoff And Potential Water Quality Impacts, Colin Rodger Ricks

Theses and Dissertations

The accurate prediction of water quality is essential for management of reservoirs used for drinking water supply. Since algae are a major source of taste and odor problems in drinking water, understanding and controlling algal growth and production is an important task. Deer Creek Reservoir supplies drinking water for over one million people in northern Utah and has been highly eutrophic in the past. Despite major reductions in external nutrient loading, including phosphorus, seasonal algal blooms in Deer Creek have not decreased to desired levels. Resuspension of sediment has been suggested as a potential source of internal nutrient loading for …


Developing Methods To Assess The Potential Effects Of Global Climate Change On Deer Creek Reservoir Using Water Quality Modeling, Reed Earl Chilton Mar 2011

Developing Methods To Assess The Potential Effects Of Global Climate Change On Deer Creek Reservoir Using Water Quality Modeling, Reed Earl Chilton

Theses and Dissertations

To evaluate the potential impacts of future climate change on a temperate reservoir, I used a calibrated water quality and hydrodynamic model validated using three years of data (2007-2009) from Deer Creek Reservoir (Utah). I evaluated the changes due to altered air temperatures, inflow rates, and nutrient loads that might occur under Global Climate Change (GCC). I developed methods to study GCC on reservoirs. I produced Average Water Temperature Plots, Stratification Plots, and Total Concentration Plots. Average Water Temperature Plots show the sensitivity of the water temperature to various parameters. Stratification Plots quantify stratification length and strength as well as …


Stochastic Spatio-Temporal Uncertainty In Gis-Based Water Quality Modeling Of The Land Water Interface, Ahmad Mohamad Salah Feb 2009

Stochastic Spatio-Temporal Uncertainty In Gis-Based Water Quality Modeling Of The Land Water Interface, Ahmad Mohamad Salah

Theses and Dissertations

Integrated water resources management has been used for decades in various formats. The limited resources and the ever growing population keep imposing pressure on decision makers to better-, and reliably, manage the available waters. On the other hand, the continuous development in computing and modeling power has helped modelers and decision makers considerably. To use these models, assumptions have to be made to fill in the gaps of missing data and to approximate the current conditions. The type and amount of information available can also be used to help select the best model from the currently available models. Advances in …


Algal Succession And Nutrient Dynamics In Elephant Butte Reservoir, Eric J. Nielsen Mar 2005

Algal Succession And Nutrient Dynamics In Elephant Butte Reservoir, Eric J. Nielsen

Theses and Dissertations

A water quality model was created for Elephant Butte Reservoir, New Mexico to understand nutrient dynamics and algal response during a three year period. The model chosen for this study was CE-QUAL-W2 because of its proven ability to represent hydrodynamics and the ability to represent multiple algal groups. Elephant Butte has been subject to large algal blooms. This study examined the phosphorus loading into the reservoir to see if it could sustain the observed algal growth. Data showed that the amount of bioavailable phosphorus was more than enough to support large blooms. This study also was an initial attempt to …