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Filtering by: Creator Haller, Merrick C. Remove constraint Creator: Haller, Merrick C. Degree Name Master of Ocean Engineering (M.Oc.E.) Remove constraint Degree Name: Master of Ocean Engineering (M.Oc.E.)

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  • Analysis of rip current embayments on the Oregon coast

    Creator:
    Dalon, Matthew M.
    Abstract:
    Understanding the past, present, and future behavior of our nation's shorelines is vital for sensible coastal management. Localized areas of erosion, termed "erosional hot spots", can shift the shoreline landward threatening coastal infrastructure (Kraus and Galgano, 2001; Stauble and Gravens, 2004; McNinch, 2004). One specific type of erosional hot spot...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Merrick C. Haller Understanding the past, present, and future behavior of our

  • Hybrid approach to estimating nearshore bathymetry using remote sensing

    Creator:
    Catalán Mondaca, Patricio A.
    Abstract:
    The characterization of bathymetry and its time evolution is very important for both oceanographic science applications, and for societal reasons relating to coastal engineering and development. Historically, the process of depth surveying has been costly and labor-intensive. This is especially true in nearshore regions, hence a method that is both...
    Resource Type:
    Masters Thesis

  • A laboratory experiment on sand bar migration with comparisons to recent models

    Creator:
    Magalen, Jason
    Abstract:
    Successful prediction of nearshore sediment migration is important in determining the vulnerability of a coastline. During energetic wave climates (storm events) sediment rapidly erodes from beaches and is deposited offshore. In subsequent milder wave conditions, the sediment migrates shoreward, accreting on the beach and helping to protect the coastline. It...
    Resource Type:
    Masters Thesis
    Full Text:
    Experiment on Sand Bar Migration with Comparisons to Recent Models Abstract approved: Merrick C. Hailer

  • Wave propagation processes at the mouth of the Columbia River

    Creator:
    Andes, Lisa (Lisa Christine)
    Abstract:
    The mouth of the Columbia River (MCR) has a longstanding reputation of hazardous navigational conditions. This reputation has been developing since the first ship, the Columbia, traversed through the inlet in 1792. The hazardous conditions are related to the large waves and strong tidal currents that are common in the...
    Resource Type:
    Masters Thesis
    Full Text:
    B -1() 8()$C/8()&D+?$7E?F'$2(�G)HJILKNM.MPO Q R �S/1TS(.UWVX"ZY.(�[:-1+ B "N3?"N/1�S+?$7[\-1

  • Toward wave energy in Oregon : predicting wave conditions and extracted power

    Creator:
    Oskamp, Jeffrey A.
    Abstract:
    Knowledge of wave conditions in nearshore regions supports the development of ocean wave energy technology by providing wave climatology for device design considerations, and power output estimates. By modeling wave transformation over the continental shelf, wave conditions were predicted in nearshore regions where potential wave energy conversion sites are located....
    Resource Type:
    Masters Thesis
    Full Text:
    Özkan-Haller Knowledge of wave conditions in nearshore regions supports the development of ocean wave

  • Large-scale laboratory observations of wave breaking turbulence on a fixed barred beach

    Creator:
    Scott, Christopher P.
    Abstract:
    This thesis presents the details of a large-scale laboratory experiment to study the turbulence generated by waves breaking on a fixed barred beach. The data set includes comprehensive measurements of free surface displacement and fluid velocity for one random and one regular wave case. Observations of the time-averaged turbulent kinetic...
    Resource Type:
    Masters Thesis
    Full Text:
    ensemble averaging (b), high-pass filtering (c), and differencing methods (d) 29 2.5 Vertical variation of

  • Nowcast/forecast of storm surge and drawdown using a hybrid FE/ANN approach

    Creator:
    Darnell, Joel T.
    Abstract:
    In the northwestern Gulf of Mexico there is a need for reliable water level forecasts to facilitate safe commercial navigation, marine construction, and emergency management. Though the low amplitude tides of the region can be predicted with conventional harmonic techniques, frequent strong storms make accurate forecasts of water levels difficult....
    Resource Type:
    Masters Thesis
    Full Text:
    last 4 years and my committee members, Dr. Merrick Hailer and Dr. Tuba Ozkan-Haller, for their

  • Wave field patterns generated by wave energy converters

    Creator:
    McNatt, J. Cameron
    Abstract:
    The eventual deployment of wave energy converters (WECs) on a commercial scale will necessitate the grouping of devices into arrays or "wave farms," in order to minimize overhead costs of mooring, maintenance, installation, and electrical cabling for shoreward power delivery. Closely spaced WECs will interact hydrodynamically through diffracted and radiated...
    Resource Type:
    Masters Thesis
    Full Text:
    Patterns Generated by Wave Energy Converters Abstract approved: H. Tuba Özkan-Haller The eventual

  • Coastal sand dunes in the U.S. Pacific Northwest : regional variability in foredune geomorphology and associated physical vulnerability to hazards

    Creator:
    Mull, Jeremy M.
    Abstract:
    Coastal foredunes protect lives, infrastructure, and ecosystems during severe winter storms. In the U.S. Pacific Northwest (PNW), coastal foredune geomorphology is determined by both physical and ecological mechanisms. Before the 1900's, the native plant Elymus mollis was the dominant dune grass and dune morphology was largely determined by sediment supply...
    Resource Type:
    Masters Thesis
    Full Text:
    Merrick Haller and David Hill. Their advice on specific analyses and reviews of this document were

  • Evaluation of the performance of a taut-moored dual-body direct-drive waveenergy converter through numerical modeling and physical testing

    Creator:
    Elwood, David E.
    Abstract:
    With energy prices rising and increasing concern about the influence of fossil fuels on climate change, wave energy systems are on the verge of commercial implementation. These first generation wave energy converters utilize either pneumatics or hydraulics to convert the mechanical energy of waves into electricity. For the last several...
    Resource Type:
    Masters Thesis
    Full Text:
    ) Ocean Power Technologies PowerBuoy TM , b) Limpet OWC, c) Pelamis Attenuator