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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 23 for “"storm runoff"”.
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CHARACTERIZATION OF URBAN STORM RUNOFF BY MONITORING SEDIMENTS AND RIPARIAN VEGETATION
Difficulties associated with monitoring urban stormwater quality present considerable challenges to stormwater managers in the arid southwest. Complexities arise from the infrequent occurrence of storm events, their highly localized extent, and the short duration of storm hydrographs. The presence …
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Environmental aspects of storm runoff discharge from a timber port, Tauranga, New Zealand
An investigation was undertaken into storm runoff water quantity and quality, contaminant input to the receiving tidal waters from the Mt. Maunganui wharf, accumulation of potentially toxic resin acids in adjacent sediments, and the dilution of the wharf runoff in the receiving tidal waters, in …
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Old and subsurface water contributions to storm runoff generation in flat, fractured, clayey terrain.
… assess old and subsurface water contributions to storm runoff generation in flat, fractured, clayey terrain with integrated tracer studies and field measurements. This study was conducted at Agriculture Canada's Whelan Experimental Farm near Woodslee, Ontario between June 1992 and August 1993. The …
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An investigation of the groundwater ridging theory for large groundwater contributions to streams during storm runoff events.
Dept. of Geology and Geological Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1981 .W563. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.A.Sc.)--University of Windsor (Canada), 1981.
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Modelling the hydrological response of an urban watershed Diachronic analysis of the effects of land use changes on storm runoff generation in the Upper Bukit Timah basin, Singapore
… work consisted in the modelling of the rainfall-runoff relationships in the Upper Bukit Timah catchment in Singapore, in order to highlight the impacts of urbanisation on hydrology. The SWMM model, a one-dimensional physically based model especially developed for urban areas, was mainly used. The …
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Episodic Increases In Stream Acidity, Catchment Flow Pathways And Hydrograph Separation
… a long transit time through the catchment. Acid storm runoff was considered to be primarily precipitation routed through the catchment too rapidly for weathering to occur. The predictions of SWA models are sensitive to the proportions of short and long transit time water reaching the stream. …
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Simulation and design of diversion and detention system for urban stormwater management
Diversion of the first flush of storm runoff to a detention basin for pollutant removal is an efficient way to control nonpoint source pollutant in urban areas. This can be achieved by a diversion box and detention basin system. To numerically simulate the response of the system to a design …
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Pollution aspects derived from non-point sources
… potential for specifically defined types of storm runoff and for determination of whether non-point sources of pollution are great enough to be included in water pollution abatement programs. The Town of Blacksburg, Virginia, was the area of study with eleven sampling sites determined by size …
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The application of a rainfall-runoff model to the Maury River Basin in Virginia
Several rainfall-runoff models were investigated in order to select a precipitation excess generator for an implicit flood routing scheme for the James River. The Maury River basin was chosen for testing the model. Because of ease of application and data requirements, an antecedent precipitation …
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The effect of anthropogenic development on sediment loading to bays on St. John, U.S. Virgin Islands
… and land use of the watershed, and also storm based parameters, including the total storm runoff and peak discharge. Sediment loads I predicted on a storm-by-storm basis, and annual sediment loads were calculated by summing the loads from each storm in a year. This was performed from …
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Hydrological responses to moorland land-use change
… balance.Antecedent catchment conditions and storm characteristics were used in analysis of runoff distribution over time, quantified in terms of 'unit hydrographs' and linear regression models. Land-use effects were manifested most significantly in a doubling of hydrograph peak discharge …
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Groundwater/surface water interaction in the Raisin River watershed, near Cornwall, Ontario.
… study processes of streamflow generation during storm runoff, surface water, groundwater, and rainwater samples were collected for environmental isotopes (oxygen-18 and deuterium). Raisin River discharge data were also analysed. Seepage measurements and hydraulic conductivities exhibit …
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Development of a modelling framework for integrated catchment flood risk management
… for the impacts of these approaches on the storm runoff, leading to considerable uncertainty in their effectiveness in terms of mitigating flood risk. A new modelling framework for design, assessment, and uncertainty estimation of such distributed, nature-based schemes is developed. An …
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Effect of urban street pattern on drainage.
In cities, storm runoff is usually collected in the streets and conveyed to underground storm drains through inlets located at street level. Construction and maintenance of storm drain systems is always expensive. In semiarid regions with a very low frequency of storm occurrence, most cities use …
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Flow routing in the parallel pipes of a combined sewer system
… Percentage differences for peak flowrates, runoff volumes and levels were all within ±20% of observed and simulated values.<br/><br/>A review of flow routing procedures, above-ground hydrological models and the major commercial sewer simulation packages is also included.<br/><br/>In addition …
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Coupling Physical and Machine Learning Models with High Resolution Information Transfer and Rapid Update Frameworks for Environmental Applications
… are designed to predict short-term, high-risk runoff from critical source areas (CSAs) in watersheds which are significant sources of non point source (NPS) pollution. This study couples the Soil and Water Assessment Tool-Variable Source Area (SWAT-VSA) model with the Climate Forecast System …
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AN INVESTIGATION OF SOIL WATER MOVEMENT ON DRAINED AND UNDRAINED CLAY GRASSLAND IN SOUTH WEST ENGLAND
… to characterise discharge regimes, elucidate runoff generation mechanisms and to consider implications for solute movement under natural and drained conditions. Research was conducted on a heavy clay grassland soil in an area of high rainfall (1053 mm a ˉ¹) in South West England. A combined …
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The impact of unwashed aggregate on water quality emanating from permeable pavements
… set out to mitigate the adverse effects of urban stormwater runoff, through a multi-objective approach. Permeable pavement systems (PPSs) are one of the most widely-adopted SuDS technologies in South Africa. South Africa is a water scarce country and the sustainable provision of water to its …
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