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    Changes in storm runoff with urbanization: the role of pervious areas in a semi-arid environment

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    Author
    Kennedy, Jeffrey Ronald
    Issue Date
    2007
    Advisor
    Troch, Peter A.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Although urban stormwater runoff has received considerable scientific attention, the role of pervious areas in the infiltration of rainfall in residential areas is not well understood. In the southwestern U.S., where poorly developed, heterogeneous soils are common, the typical residential housing development process includes extensive modification of pervious soil surfaces to accommodate the dominant tract-housing style of construction, which in tum affects soil infiltration properties. The application of a physically based rainfall-runoff model, KINEROS2, to adjacent grassland and urban watersheds shows that effective saturated hydraulic conductivity (Ks) decreases from about 25 mm/hr in the grassland area to 2.5 mm/hr in the urban area, a change that is confirmed in direction, but not magnitude, by tension infiltrometer measurements. This . change in infiltration properties results in a 3 8 percent increase in the volume of runoff from the urban area over what would be expected if the soil were undisturbed.
    Type
    text
    Thesis-Reproduction (electronic)
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Hydrology and Water Resources
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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