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Filtering by: Subject Runoff -- Oregon Remove constraint Subject: Runoff -- Oregon Decade 2000-2009 Remove constraint Decade: 2000-2009

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  • Analytical determination of copper speciation in Oregon highway runoff

    Creator:
    Sprick, Matthew S.
    Abstract:
    Low concentrations of dissolved copper have been shown to adversely affect the olfactory system of endangered salmonids, impairing their ability to avoid predators and likely increasing predation. It is believed that only the free ionic (Cu2+ free) and weakly complexed forms are bioavailable to organisms; these forms typically account for...
    Resource Type:
    Masters Thesis
    Full Text:
    on December 8, 2009. Title: Analytical Determination of Copper Speciation in Oregon Highway Runoff

  • Statistical analysis and speciation modeling of copper in Oregon highway runoff

    Creator:
    Bloomquist, Don J.
    Abstract:
    Low levels of copper have been shown to impair the olfactory system of threatened and endangered (T&E) salmon, decreasing their predator avoidance behavior and likely increasing mortality. However, only dissolved copper (dissCu) present as the cupric ion (Cu2+) and weakly complexed species are truly bioavailable. Previous studies indicate the vast...
    Resource Type:
    Masters Thesis
    Full Text:
    Oregon Highway Runoff By Don J. Bloomquist A THESIS Submitted to Oregon State University

  • Water residence time and runoff generation in the western Cascades of Oregon

    Creator:
    McGuire, Kevin J.
    Abstract:
    The age, or residence time of water is a fundamental descriptor of catchment hydrology, revealing information about the storage, flow pathways and source of water in a single integrated measure. While there has been tremendous recent interest in residence time to characterize catchments, there are few studies that quantify residence...
    Resource Type:
    Dissertation

  • Measurement and modeling the physical controls of snowmelt in the Pacific Northwest

    Creator:
    Mazurkiewicz, Adam B.
    Abstract:
    The physical controls of snowmelt in the Pacific Northwest (PNW) are poorly understood. While there have been numerous field and modeling investigations at the plot and watershed scale, few studies have identified how the snow energy balance (EB) components vary in importance both spatially and temporally. The identification of how...
    Resource Type:
    Masters Thesis
    Full Text:
    THESIS submitted to Oregon State University in partial fulfillment of the

  • Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

    Creator:
    Ciotti, Damion C.
    Abstract:
    Runoff from agricultural lands into Upper Klamath Basin rivers and lakes can cause water quality problems affecting fish and wildlife. Excessive eutrophication in Upper Klamath Lake is linked to high nutrient input (particularly phosphorus) stemming from both lake sediments and watershed tributaries. On a unit area load basis the Wood...
    Resource Type:
    Masters Thesis
    Full Text:
    , 2004 93 WATER QUALITY OF RUNOFF FROM FLOOD IRRIGATED PASTURE IN THE KLAMATH BASIN, OREGON

  • Reducing sediment production from forest roads during wet-weather use

    Creator:
    Toman, Elizabeth Myers
    Abstract:
    Forest roads produce fine sediment with traffic during wet weather. If the forest road is connected to a stream it can be a source of turbidity and fine sediment that may be detrimental to aquatic organisms especially salmonids. The goal of this work was to investigate turbid runoff during wet-weather...
    Resource Type:
    Dissertation
    Full Text:
    especially salmonids. The goal of this work was to investigate turbid runoff during wet-weather use from