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 29 for “"urban watershed"”.
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Evolution and Application of Urban Watershed Management Planning
The development of Watershed Management Plans (WMPs) in urban areas aids municipalities in allocating resources, engaging the public and stakeholders, addressing water quality regulations, and mitigating issues related to stormwater runoff and flooding. In this study, 63 urban WMPs across the …
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Total and dissolved organic nitrogen analysis in an urban watershed
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.
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Improving Urban Watershed Health Through Suburban Infill Design and Development
… inward or into more compact, mixed-use suburban developments (Nelson, 2004). If this assertion is even nearly true, and if the goals of the Clean Water Act are to be met in the next generation of American cities, then we must find feasible and effective ways of improving urban watershed …
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Improving microbial fate and transport modeling to support TMDL development in an urban watershed
… impairments in the United States. Continuous watershed-scale models are typically employed to facilitate Total Maximum Daily Load (TMDL) restoration efforts. Due to limited understanding of microbial fate and transport, predictions of FIB concentrations are associated with considerable …
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Assessment of Predictive Real-Time Control Retrofits on Stormwater Basin Performance in an Urban Watershed
… to allow for prediction-based control of an urban watershed is explored using an EPA SWMM 5.1 watershed model. One reactive and two predictive RTC algorithms are simulated in various configurations across seven dry detention ponds located in the 162 hectare urbanized watershed. The hydraulic …
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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
… 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 parameters encoded into the model were determined by different means and several methods were used for …
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A distributed modeling approach for evaluating hydrological effects of rain gardens in urban watersheds
… practices used to mitigate the effects of urbanization such as excess runoff and water quality issues. Implementation of BMPs and LID have been limited and sometimes restricted because of the lack of recognized methodologies to estimate their hydrologic effects in urban watersheds under a …
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Assessing Urban Non-Point Source pollutants at the Virginia Tech Extended Dry Detention Pond
… concern for the environment and increasing urbanization of rural areas, understanding the characteristics of urban non-point source pollution has become a focus for water quality investigators. Once thought to be a small contributor to the pollution problem, urban non-point sources are now …
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Spatial arrangement of stormwater infiltration affects partitioning of subsurface storage and baseflow timing
Urban stormwater management is using distributed facilities that treat stormwater near where it falls at an increasing rate. These facilities are often designed to infiltrate water that would have previously been conveyed overland. By directing water that would have previously made it to receiving …
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Improving Predictions of Stormwater Quantity and Quality through the Application of Modeling and Data Analysis Techniques from National to Catchment Scales
Urbanization alters land cover by increases in impervious areas, resulting in large increases in runoff, sediment, and nutrient loadings downstream. These changes cause flooding, eutrophication, and harmful algal blooms. Stormwater control measures (SCMs) are used to address these concerns and are …
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The greening of community development : an analysis of ecological restoration and neighborhood planning in the Fenway
… community planning initiatives to protect the urban watershed and promote a community development vision have improved the physical conditions of the Fenway neighborhood, but have failed to address long-term solutions to restoring a healthy and vibrant urban landscape. Drawing on the theory and …
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Modeling Climate Change Impacts on the Effectiveness of Stormwater Control Measures in Urban Watersheds
… recent advances, the assessment of CC impacts in urban watersheds remains an area of active research, in part due to the small temporal and spatial scales needed to adequately characterize urban systems. Urban watersheds have been the focus of considerable efforts to restore hydrology and water …
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A Stream Runs Through It: Reconnecting Watershed and Landscape at the University of Maryland
… thesis: A STREAM RUNS THROUGH IT: RECONNECTING WATERSHED AND LANDSCAPE AT THE UNIVERSITY OF MARYLAND Deborah Anne Bauer, Master of Architecture 2008 Thesis directed by: Professor Guido Francescato, Fall 2006--Fall 2007 Professor Ralph Bennett, AIA, Spring 2008 School of Architecture, Planning …
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Development of Effective Procedures for Stormwater Thermal Pollution Potential Risk Mapping
… occurring from heated stormwater runoff in urban catchments is a growing concern among municipalities in the United States. The U.S. Environmental Protection Agency (EPA) maintains regulatory criteria for temperature of waters of the U.S. as many species of aquatic life depend on an …
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Urban Erosion Potential Risk Mapping with GIS
… concern as it originates during both rural and urban activities, and often carries other pollutants (metals, nutrients, etc.) with it. Existing erosion models focus primarily on estimating erosion from agricultural watersheds. Methods are needed to predict areas with high erosive potential (EP) …
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Measuring and modeling stream and air temperature relationships in a multiland use watershed of the central United States
A nested-scale experimental watershed study design approach was used in an urban watershed of the central U.S. to investigate stream water temperature (Tw) variability during water year's 2011, 2012, and 2013. Drought conditions were observed during water year 2012 when total annual precipitation …
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DEVELOPMENT OF A CHEMICAL FINGERPRINT FOR DETECTING UNTREATED HUMAN SEWAGE POLLUTION IN SURFACE WATER
… markers to track untreated sewage in an urban watershed with separate storm sewer system, under dry weather conditions. The main feature of these chemical markers is their degradation behavior at municipal wastewater treatment plants: some markers are completely removed (labile markers), …
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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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Precipitation Estimation Methods in Continuous, Distributed Urban Hydrologic Modeling
… in hydrological modeling, particularly in small, urban watersheds which respond rapidly to precipitation and can experience significant spatial variability in rainfall fields. Few studies have compared QPE methods in small, urban watersheds, and studies which have examined this topic only compared …
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Resident Participation in Watershed Management: Preference for Riparian Landscapes, Attitudes, and Behaviors- Case Study of Cedar River Watershed, Washington
Lower Cedar River Basin is an urban watershed that shares the problem of urbanization and flooding with many other riparian ecosystems in the Pacific Northwest. Restoration of the watershed is not only beneficial to the ecological health of the River, but to the flood mitigation of private …
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