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Full-Text Articles in Physical Sciences and Mathematics
Assessing The Curve Number Method For Modeling Urban Watershed Stormwater Runoff Across Louisville, Ky., Garrett J. Seay
Assessing The Curve Number Method For Modeling Urban Watershed Stormwater Runoff Across Louisville, Ky., Garrett J. Seay
Electronic Theses and Dissertations
According to the US EPA when a watershed reaches 75% impervious land cover, surface runoff accounts for 55% of precipitation input losses compared to 10% for a ‘natural cover’ watershed, exacerbating urban flooding during extreme rainfall events. This research modeled historical rainfall-runoff processes for six urban watersheds within the city of Louisville, KY for a series of these extreme rainfall events. Precipitation and resultant runoff discharge events were collected in the field over the spring and summer of 2016. Surface biophysical data in the form of gridded elevation, land cover and soil type were also collected and processed for each …
Investigating Stormwater Drainage Basin Sediments As A Means Of Bacterial Accumulation And Transport Within A South Carolina Estaurine Watershed, Matthew Kyle Curtis
Investigating Stormwater Drainage Basin Sediments As A Means Of Bacterial Accumulation And Transport Within A South Carolina Estaurine Watershed, Matthew Kyle Curtis
Electronic Theses and Dissertations
While the presence of fecal indicator bacteria such as Escherichia coli in urban stormwater has been widely documented, their occurrence and persistence in sediments are not as well understood. Traditional research into bacterial contamination of surface waters has focused on overland transport of waste material and assumes fecal bacteria such as E. coli have short lifetimes in the environment. Recent investigations suggest that E. coli can accumulate in drainage basin sediments and act as a fecal bacterial reservoir within a watershed. This thesis investigated the prevalence of E. coli populations in the sediments and overlying waters of Withers Swash (a …