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  • Incipient resuspension of silt-clay deposits in oscillatory and unidirectional flows

    Creator:
    Talebbeydokhti, Nasser
    Abstract:
    Incipient motion of cohesive sediment and the role of flow parameters were investigated for separate and combined unidirectional and oscillatory flows. Sediment from Sturgeon Lake, mainly silt and clay with organic matter, was used as bed material In recirculating and wave flumes. Bench-type experiments indicated that when the submerged sediment...
    Resource Type:
    Dissertation
    Full Text:
    wish to express my gratitude to Professor Peter C. Klingeman for his valuable guidance, encouragement

  • Incipient motion and particle transport in gravel-bed streams

    Creator:
    Matin, Habib
    Abstract:
    The incipient motion of sediment particles in gravel-bed rivers is a very important process. It represents the difference between bed stability and bed mobility. A field study was conducted in Oak Creek, Oregon to investigate incipient motion of individual particles in gravel-bed streams. Investigation was also made of the incipient...
    Resource Type:
    Dissertation
    Full Text:
    Streams Abstract Approved: Peter C. Klingeman The incipient motion of sediment particles in gravel-bed

  • Stability of gravel at artificially created spawning beds in uncontrolled streams

    Creator:
    Helland-Hansen, Erik Andreas
    Abstract:
    Twenty-five gabion-type structures across the main stem and tributaries of the Siuslaw River in the Oregon Coastal Range, installed to expand the available spawning area for fish, were investigated for their ability to perform gravel control functions such as trapping bedload carried by the stream or holding gravel placed behind...
    Resource Type:
    Masters Thesis
    Full Text:
    TI ITC (-VAT D T T C D "C, ATXC Redacted for PrivacyAbstract approved: Peter C. Klingemail Twenty

  • Modeling sediment transport, channel morphology and gravel mining in river bends

    Creator:
    Nam, Ilgi
    Abstract:
    A technique is developed and tested to analyze the interaction of flowing water, bed topography, and bedload sediment transport in meandering channels where gravel bars are removed. The method relates the local velocity distribution, bed shear stress and sediment transport conditions to the local bed configuration in river bends before...
    Resource Type:
    Dissertation
    Full Text:
    Mining in River Bends . Abstract approved: Peter C. Klingeman A technique is developed and tested to

  • Tidal influence on downstream fining in gravel-bed rivers

    Creator:
    Coles, Derron Rafiq
    Abstract:
    This research examines the downstream fining phenomenon as it operates in coastal gravel-bed rivers of Oregon. Downstream fining is a change in bed composition toward smaller sediment sizes in the downstream direction. Changes in stream flow discharge and channel slope affect the rate of bed-load transport, thereby altering the downstream...
    Resource Type:
    Dissertation
    Full Text:
    approved: Peter C. Klingeman This research examines the downstream fining phenomenon as it

  • Wave competence and morphodynamics of boulder and gravel beaches

    Creator:
    Lorang, Mark
    Resource Type:
    Dissertation
    Full Text:
    Morphodynamics of Boulder and Gravel Beaches Abstract Approved: Peter C. A reformatted Shields relation, z

  • Relationships between seasonal suspended sediment behavior and reservoir turbidity

    Creator:
    Conner, Dan Alan
    Abstract:
    The causes of turbidity in impounded and released reservoir water are studied. Seven Willamette Basin reservoirs are compared to isolate watershed and reservoir characteristics which produce variations in turbidity. Of the seven, Hills Creek Reservoir is examined in detail. Particular features of the basin and impoundment are studied to isolate...
    Resource Type:
    Masters Thesis
    Full Text:
    I am indebted to Dr. Peter C. Klingeman for the valuable guidance he has given me in preparation of

  • Local scour at isolated obstacles on river beds

    Creator:
    Huang, Cheng-Chang
    Abstract:
    Maximum equilibrium scour depths, equilibrium scour volumes, and induced equilibrium movements at isolated obstacles on river beds were investigated in clear-water scour. The research was achieved by a systematic flume study based on the results of dimensional analysis of local scour. The main tested obstacles for local scour were cubes....
    Resource Type:
    Dissertation
    Full Text:
    : Redacted for Privacy Peter C. KlingemaY Maximum equilibrium scour depths, equilibrium scour volumes, and

  • Predicting channel stability in Colorado mountain streams using hydrobiogeomorphic and land use data : a cost-sensitive machine learning approach to modeling rapid assessment protocols

    Creator:
    Morét, Stephanie L.
    Abstract:
    Natural resource data are typically non-linear and complex, yet modeling methods often utilize statistical analysis techniques, such as regression, that are insufficient for use on such data. This research proposes an innovative modeling method based on pattern recognition techniques borrowed from the field of machine learning. These techniques make no...
    Resource Type:
    Dissertation
    Full Text:
    : Dr. Peter Klingeman served as my major professor and provided remarkable editing and enthusiasm for

  • Hydraulic influences on pool morphology : a laboratory investigation

    Creator:
    Frizenschaf, Jacqueline
    Abstract:
    A flume study was conducted to investigate the influences of changing hydraulic conditions on the bed morphology of a scoured pool. During a simulated storm runoff event, responses of the pool were tested under different conditions: clearwater flow, sediment supply at steady rates, and two different sediment mixtures of the...
    Resource Type:
    Masters Thesis
    Full Text:
    appreciation to Dr. Peter C. Klingeman for his encouragement to begin this project and for his help throughout