Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 61 for “"water quantity"”.
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Improving Watershed Models to Achieve a Better Prediction of Water Quantity and Quality
Watershed models are powerful tools for simulating different scenarios to understand the impact of management practices and are used to support and guide decision-making. However, there are often challenges and limitations to using watershed models in some areas of watershed modeling; 1) model …
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Modeling Water Quantity and Quality on Tile Drained Watersheds With a GIS Coupled DRAINMOD
… spatial variability in tile drained fields and watersheds. Recommendations were given to improve the both the model interface and DRAINMOD.
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Determination of sediment, water quantity and quality for swat modelling of sedimentation in the Makoye reservoir, southern province, Zambia.
… temporal scales; (ii) measure the long-term quantity of sediment deposited in Makoye Reservoir; (iii) determine the short-term real time sediment settling rate in the Makoye Reservoir; (iv) examine concentration levels of selected physical and chemical parameters of water for livestock in …
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A spatial decision support system for basin scale assessment of improved management of water quantity and quality in stream-aquifer systems
… over the years, with expanding competition among water demands and emerging environmental concerns, increasing the complexity of the decision making framework. A State-of-the-art spatial-decision support system (River GeoDSS) is developed herein to provide assistance in evaluating management …
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Modeling of Land Use Change Effects on Storm Water Quantity and Quality in the City of Carrollton and the North Texas Area
… so is the need to understand changes in storm water runoff flow and its contamination by nutrients, sediment, pesticides and other toxicants. This study contributes to this understanding and has two primary components: first, development of a graphical user interface for a geographic …
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Efficiency of Bioretention Cells for Stormwater Management Water Quantity Control for Low Density Residential Development: A Case Study in the Greater Toronto Area
… Cells (BRCs) are new features of Stormwater Management (SWM). The primary objective of BRCs is for water quality treatment but their contribution to water quantity control of SWM is not fully understood. A low-density residential subdivision in the Toronto Area was completed in 2017 and …
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Assessment of groundwater quality and community’s experiences in relation to water quantity and quality challenges in Lephalale Municipality, Waterberg District, Limpopo Province in South Africa
The aim of this study was to assess the water quality of groundwater utilized for domestic and irrigation purposes in Lephalale Municipality, interrogate the community's experiences and issues related to water quality and supply in Lephalale local municipality, Waterberg district in Limpopo …
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Impacts of Climate Change and Multiple Stressors on Water Levels and Phytoplankton in Small Temperate Lakes Within the Great Lakes Region Over Three Decades
Changes in climate influence water quantity and water quality through hydrological processes, thermal regimes, and ice phenology. This thesis investigates the impacts of climate change and additional anthropogenic stressors on water quantity and quality in two study areas with minimal anthropogenic …
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Increased Perviousness Versus Urban Densification: Trade-offs Between Adaptation and Mitigation In A Changing Climate
… to understand the implications of different water management efforts on these options, especially within the context of a changing climate, because of the potential interactions among various efforts. In particular, it is imperative to understand these implications because of the rapid growth …
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Predictions of produced water quality and quantity for spatially-distributed wells in Niobrara formation
… the oil and gas industry are the availability of water for well construction and disposal of the produced water. Produced water is typically only treated for a limited number of constituents, and common disposal options have been deep well injection, evaporation or discharge to wastewater …
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Quantitative sustainable design of water and sanitation infrastructure in resource-rich and resource-limited contexts
… indicators, can inform decision-making for water and sanitation infrastructure by enabling navigation of trade-offs across dimensions of sustainability (e.g., environmental, economic, human health). However, to be useful for decision-making, sustainable design tools must address …
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MODELING IMPACTS OF CLIMATE CHANGE AND AGRICULTURAL MANAGEMENT ON WATERSHED OUTPUTS IN MIDWESTERN USA
… SWAT model typically involve delineation of a watershed into subwatersheds/subbasins that are then further subdivided into hydrologic response units (HRUs) which are homogeneous areas of aggregated soil, landuse, and slope and are the smallest modeling units used within the tool. In a standard …
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Development of a Web-Based System for Water Quality Data Management and Visualization
… Stresses on limited resources, especially water resources, are now greater than ever before. Watershed monitoring and management are important components of programs to abate water resource stresses. The increasing water quantity and quality monitoring has produced a need for better data …
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The Use of Landsat Thematic Mapper in the Study of Landuse/Cover and Water Quality Relationships
… fourth driest country in the world, demand for water exceeds available water resources. The annual per capita water availability is 145 Cubic Meter (CM) per year, which is below the international poverty line of 500 CM/year. The increasing water deficit year-on-year poses serious future threat …
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Response of Soil and Water Quality to Winter Manure Application from Small Agricultural Watersheds in South Dakota
… that manure spread near the outlets of the watersheds would lead to an increased loss of nutrients as compared to the manure spread away from the watershed outlets. A paired watershed study was established near Colman, South Dakota, in which two watersheds were used as treatment watersheds …
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Does it pay to be mature? Assessing the performance of a mature bioretention cell seven years post-construction
… cells (BRCs) are low-impact development stormwater management structures that integrate water quantity and quality management. Although BRCs have a predicted design life of about 25 years, most current research focuses on performance of cells less than two years old. This project evaluated the …
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Challenges and solutions towards reaching SDG6 in Malawi
… (SDG) 6 outlines the aim to ‘ensure access to water and sanitation for all’ by 2030. For Malawi, this will require significant investment and development to ensure that the 82% of the population currently lacking safely managed drinking water, as well as the 54% currently lacking sanitation, …
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Using SLEUTH Land Cover Predictions to Estimate Changes in Runoff Quality and Quantity in the Delmarva Peninsula
… compensate for the resulting changes in stormwater runoff that will inevitably follow. This study is a regional attempt at predicting how predicted changes in land cover will affect runoff characteristics in a number of watersheds throughout the Delmarva Peninsula when compared to the current …
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