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 67 for “"Hydrologic sciences"”.
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Quantifying non-Fickian transport in porous and fractured media using fractional-calculus based stochastic models
… which remained the most challenge for stochastic hydrologic models.
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Probabilistic Flood Risk Assessment Under Climate Change Scenarios in the Humber River Watershed
… floodplain maps are generated using hydrological (HEC-HMS) and hydraulic models (HEC-RAS). Finally, flood risk is calculated by integrating the floodplain maps with the vulnerability of exposed elements. Results reveal an increase in the flood risk for most of the climate scenarios by …
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Land Use and River Systems: Impacts of Suburban Residential Development on Channel Stability and Water Supply, Oak Ridges Moraine, Southern Ontario
To better understand the impacts of suburbanization on rivers and with the sensitivity of the Oak Ridges Moraine in mind, this study examined the geomorphology and hydrology of streams running through small, primarily residential developments in the Humber River headwaters. Local scale impacts were …
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Recharge dynamics of a perched phreatic aquifer
… linear-system approaches. Hydrometeorologic and hydrologic data were collected for a 16-month period (4/97 to 8/98) using both manual and automated techniques. Precipitation totaled 135.6 cm and evapotranspiration (ET) calculated using the Penman-Monteith method totaled 107.5 cm. Recharge …
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Isotopic composition of dissolved inorganic carbon in underground mine discharges of the northern appalachian basin
This research examined the efficacy of using 13C of dissolved inorganic carbon (DIC) to infer geochemical and microbiological processes in underground coal mine discharges. Groundwater samples from mines in two different coal seams (the Pittsburgh and Upper Freeport) and three different …
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Using electrical resistivity tomography to calibrate seawater intrusion models along the Alabama Gulf Coast
… models tend to be limited by the availability of hydrological data, uncertainty in these results can be substantially reduced through the integration of field geophysical measurements. Field measurements employing electrical resistivity tomography (ERT) were utilized to calibrate a …
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Identifying controls on and potential solutions to storm water flooding in urban area- a case study of the UA campus
Flash flooding in the University of Alabama (UA) campus has become more frequent than before due to the rapid development throughout the campus and the City of Tuscaloosa. To function as a robust and flood free area, the UA campus requires updated and data-informed flood mitigation measures. …
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Geospatial and statistical foundations for streamflow synthesis in West Virginia
Streamflow values must be synthesized for locations where flow measurement stations, in applications such as the West Virginia SWAP program, are lacking or where only intermittent measurements are available (West Virginia Department of Health and Human Resources, 1999). This research describes an …
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Green-Ampt infiltration model parameter determination using SCS curve number (CN) and soil texture class, and application to the SCS runoff model
The U.S. Department of Agriculture (USDA) Soil Conservation Service Curve Number (SCS CN) method is a simple and widely popular technique of estimation of direct runoff volume for design and natural rainfall events in small watersheds. The SCS CN procedure is incorporated into such computer …
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Quantification of acid loads and delineation of hydrochemical facies at a phreatic mine spoil aquifer
Acid mine drainage geochemistry and in situ alkaline injection were investigated at the DLM coal mine, Alton West Virginia. These included spatial and temporal investigations into hydrochemical controls that were initiated with reclamation efforts. Approaches included the delineation of …
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Frequency analysis and two-dimensional simulations of extreme floods on a large watershed
… extreme floods and probabilities are needed in hydrologic engineering and in risk analysis to assess the safety of dams. This research focuses on developing a two-dimensional, distributed model to simulate extreme floods with return periods up to 10,000 years. The four objectives of this …
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