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  • Organizational factors in the reliability assessment of offshore systems

    Creator:
    Biondi, Esteban L.
    Abstract:
    The reliability of ocean systems is dependent on organizational factors. It has been shown that low probability / high consequence system failures are overwhelmingly induced by organizational factors. However, no methodology is yet widely accepted for the evaluation of this phenomenon or its accurate quantification. A qualitative complementary approach is...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Ocean Engineering in Ocean Engineering presented on October 22, 1998. Title

  • Nearshore hydrodynamic model comparisons and predictions of bathymetric evolution

    Creator:
    Lescinski, Jamie M.
    Abstract:
    The surf zone exhibits large energetic signals from wave shoaling and subsequent dissipation due to breaking, forcing circulation. The bathymetry responds to the wave and wave-induced circulation with the growth, transport, and destruction of large scale bathymetric features, such as mega ripples and sand bars. There is an obvious fluctuation...
    Resource Type:
    Masters Thesis
    Full Text:
    . Lescinski for the degree of Master of Ocean Engineering in Ocean Engineering presented on September 14

  • An investigation on the modeling of wave field transformation and shoreline morphology near steep bathymetric features

    Creator:
    Michalsen, David R.
    Abstract:
    Steep bathymetric anomalies in the beach profile, such as offshore borrow pits, submerged breakwaters, and nearshore canyons can significantly transform the wave climate through the effects of refraction, diffraction, and reflection. When located in the nearshore region the modified wave climate can also substantially change the location of breaking and...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Science in Ocean Engineering presented on July, 15 2004. Title: An Investigation on the

  • Laboratory observations of tsunami runup on a complex 3D bathymetry using PIV

    Creator:
    Ichikawa, Shingo
    Abstract:
    This thesis presents the details of a large-scale laboratory experiment to study the runup velocity on a complex 3D bathymetry. The PIV measurements including the instrumental setup, the recording procedure, and the image processing are presented. Tsunami inundation directly affects the coastal population and is one of the most important...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Ocean Engineering in Ocean Engineering presented on December 9, 2005. Title: Laboratory

  • Offshore controls on nearshore circulation

    Creator:
    Long, Joseph W.
    Abstract:
    The rip current field resulting from the transformation of surface gravity waves over offshore submarine canyons is studied. Employing a wave transformation model and a wave-induced circulation model over observed bathymetry we find that rip current circulation cells exist with alongshore spacing of O(1OOm) even though the nearshore bathymetry displayed...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Ocean Engineering in Ocean Engineering presented on March 10, 2005. Title: Offshore Controls

  • Design and implementation of a physical model for Keystone Harbor, WA

    Creator:
    Richmond, J. Brady
    Abstract:
    Strong tidal currents experienced at Keystone Harbor, WA, have caused navigational hazards and disrupted ferry service in the area. This thesis presents details of the design, construction and implementation of a large scale physical model of Keystone Harbor used to evaluate the effectiveness of proposed jetty design alternatives to improve...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Ocean Engineering in Ocean Engineering presented on March 11, 2005. Title: Design and

  • 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:
    Master of Ocean Engineering in Ocean Engineering presented on March 17, 2006. Title: A Laboratory

  • 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

  • Analysis of pressure variations observed at the ocean bottom during the 2003 Tokachi-Oki earthquake

    Creator:
    Li, Wenwen
    Abstract:
    Most tsunami studies have been conducted based on the incompressible fluid theory. However water compressibility must be considered for the process of tsunami generation by bottom displacements during submarine earthquakes. During the 2003 Tokachi-Oki earthquake, the ocean-bottom pressure variations were registered by the pressure gauges PG1 and PG2 located right...
    Resource Type:
    Masters Thesis
    Full Text:
    Li for the degree of Master of Ocean Engineering in Ocean Engineering presented on September 19

  • 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:
    Master of Ocean Engineering in Ocean Engineering presented on July 6, 2004. Title: Nowcast/Forecast of