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Filtering by: Creator Ozkan-Haller, H. Tuba Remove constraint Creator: Ozkan-Haller, H. Tuba Committee Member Ruggiero, Peter Remove constraint Committee Member: Ruggiero, Peter

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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:
    my other committee members; Tuba Ozkan-Haller, Peter Ruggiero, and Roger Graham. Together this

  • Climate Change Impacts to Estuarine Hydrodynamics: Tools, Methodologies, and Predictions

    Creator:
    Parker, Kai A.
    Abstract:
    Coastal communities in the U.S. Pacific Northwest (PNW) are rapidly engaging with the idea that hazards and environmental pressures are changing and may be characteristically different in the near future. This has led to a need for scientific knowledge and tools that can help coastal communities prepare and build resilience...
    Resource Type:
    Dissertation
    Full Text:
    development as a researcher. To my other committee members, Tuba Ozkan-Haller, Sarah Emerson, and Emily

  • Coupled wave and surge modeling of Tillamook Bay, Oregon : extreme events and climate change impacts

    Creator:
    Cheng, Tiffany Kay
    Abstract:
    Estuaries represent the confluence of land and ocean environments and encompass a number of complex interactions amongst tides, winds, offshore waves and the riverine contributions, all of which contribute to total water levels (TWLs). The study of TWLs and the relative weight of its components can assist local communities in...
    Resource Type:
    Masters Thesis
    Full Text:
    Ozkan-Haller and Peter Ruggiero for their insightful critiques and suggestions along the way. With Dr

  • Data Assimilation using Synthetic-Aperture Radar Imagery for Bathymetry Inversion at the Mouth of the Columbia River

    Creator:
    Harper, Spencer H.
    Abstract:
    Synthetic-aperture radar (SAR) imagery can provide wavenumber and frequency data to generate bathymetry estimates for locations where limited access or extreme ocean conditions can make standard bathymetry survey techniques difficult or impossible. The availability of SAR data could allow for regular bathymetry estimates of navigational channels providing insight into dredging...
    Resource Type:
    Masters Thesis
    Full Text:
    River. Abstract approved:_____________________________________________________ H. Tuba Özkan

  • Development of 2D models to estimate nearshore bathymetry and sediment transport

    Creator:
    Splinter, Kristen D.
    Abstract:
    We examine the interactions and feedbacks between bathymetry, waves, currents, and sediment transport. The first two pro jects focus on the use of remote sensing techniques to expand our knowledge of the nearshore. Due to the plethora of snap-shot data that is available from satellites and their distribution via Google...
    Resource Type:
    Dissertation
    Full Text:
    , 2DH bar variability, a, and wave characteristics (wave height, H, wave period, T , and wave angle, θ

  • Dune erosion models and swash zone kinematics from remote video observations

    Creator:
    Palmsten, Margaret L.
    Abstract:
    The subaerial beach, composed of sand dunes and the foreshore, provides a natural buffer zone between vulnerable land and the dissipation of storm wave energy due to wave breaking. The natural beauty of this region is attractive to people, and as a result, significant investment has been placed in this...
    Resource Type:
    Dissertation
    Full Text:
    . Once I got to Oregon State University, I was fortunate enough to be mentored by Rob and Tuba. You

  • Effects of Wave Nonlinearity and Vertical Variation of Vegetation Density on Wave Attenuation

    Creator:
    Wu, Wei-Cheng
    Abstract:
    The understanding and prediction how coastal wetland vegetation attenuates wave action has received renewed attention with global climate change impacts and increasing populations on coastlines. Conventional attenuation models utilize empirical drag coefficients, but these coefficients exhibit a wide range of values, and there is some uncertainty in the relative importance...
    Resource Type:
    Dissertation
    Full Text:
    Ozkan-Haller, Dr. Peter Ruggiero for providing helpful guidance and supporting the development of my

  • Experimental and numerical modeling of wave height attenuation by emergent coastal vegetation

    Creator:
    Blackmar, Philip James
    Abstract:
    Coastal vegetation dampens waves which can provide benefits to the local area, but existing literature shows large variations in the degree of wave height attenuation depending on plant properties and wave conditions. Better knowledge of how to predict the wave height decay accurately in different types of vegetation may help...
    Resource Type:
    Masters Thesis
    Full Text:
    . Thank you to my committee members, Dan Cox, Peter Ruggiero, Tuba Ozkan- Haller, and John Simonsen for

  • Exploring the Impacts of Climate and Management on Coastal Community Vulnerability through Alternative Future Scenarios

    Creator:
    Mills, Alexis K.
    Abstract:
    Coastal communities throughout the U.S. Pacific Northwest face heightened risk due to sea level rise and increasing storminess resulting in coastal flooding and erosion hazards. Incorporating uncertainty with respect to both climate change and policy decisions is essential to project the evolving probability of coastal inundation and erosion, and the...
    Resource Type:
    Masters Thesis

  • Extreme Wave Runup and Runup Variability on Beaches

    Creator:
    Li, Chuan
    Abstract:
    Wave runup is an important physical process that affects nearshore sediment transport, coastal erosion, and flooding. Large and unexpected runup events can also be dangerous to beach goers. Extreme runup statistics are essential parameters used in engineering design of marine structures and in coastal management. Although the study of runup...
    Resource Type:
    Dissertation
    Full Text:
    and Runup Variability on Beaches Abstract approved: H. Tuba Özkan-Haller Wave runup is an