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Filtering by: Creator Nash, Jonathan Remove constraint Creator: Nash, Jonathan Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) Peer Reviewed No Remove constraint Peer Reviewed: No

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  • Tide-topography coupling on a continental slope

    Creator:
    Kelly, Samuel M.
    Abstract:
    Tide-topography coupling is important for understanding surface-tide energy loss, the intermittency of internal tides, and the cascade of internal-tide energy from large to small scales. Although tide-topography coupling has been observed and modeled for 50 years, the identification of surface and internal tides over arbitrary topography has not been standardized....
    Resource Type:
    Dissertation
    Full Text:
    Coupling on a Continental Slope Abstract approved: Jonathan D. Nash Tide-topography coupling is

  • Dynamics of the Columbia River tidal plume

    Creator:
    Kilcher, Levi F.
    Abstract:
    This dissertation investigates the dynamics of the tidally modulated outflow from the Columbia River mouth using high resolution measurements of velocity, density and turbulent microstructure. At high tide, flow through the river mouth reverses from flood (onshore) to ebb (offshore). During ebb, buoyant fluid issues from the river mouth and...
    Resource Type:
    Dissertation
    Full Text:
    the Columbia River tidal plume Abstract approved: Jonathan D. Nash This dissertation investigates

  • Topics in ocean turbulence : thermocouples, salt fluxes, and internal hydraulics

    Creator:
    Nash, Jonathan D.
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Jonathan D. Nash for the

  • Observations of cross-shore sediment transport and formulation of the undertow

    Creator:
    Guannel, Gregory E.
    Abstract:
    A new set of data from a large-scale sand bar migration experiment is presented. During this experiment, two sandbars were generated. One of the bar was generated by the action of undertow, and sediment moved offshore. The other bar was generated by the shoreward movement of sediment coming from the...
    Resource Type:
    Dissertation
    Full Text:
    . Finally, I would like to thank Dr. Jonathan Nash for showing me the beauty of u∂xu. I would also like to

  • Tidal-band and high-frequency internal variability on the central Oregon inner shelf

    Creator:
    Suanda, Sutara H.
    Abstract:
    Analogous to ocean surface waves, waves in the ocean interior also experience steepening, breaking, and dissipation as they approach the coastline. Much less is known about this internal beach. In this work, extensive moored Acoustic Doppler Current Profiler and temperature/salinity data together with optical remote sensing are combined to describe...
    Resource Type:
    Dissertation
    Full Text:
    you to my committee members over the years, Jonathan Nash, Jim Lerczak, Murray Levine, Ed Dever, and

  • Wind-current Interactions of the Sri Lanka Dome and Tropical Indian Ocean

    Creator:
    Cullen, Kerstin
    Abstract:
    The southwest monsoon, which may be idealized as the northward movement of the intertropical convergence zone in the Indian Ocean associated with differential heating of land and ocean, brings a seasonal reversal of currents and winds in the Bay of Bengal and the Arabian Sea. Atmospheric convection from monsoon activity...
    Resource Type:
    Dissertation
    Full Text:
    encourage and support my research. I appreciate the help Jonathan Nash gave me when I first arrived at grad

  • Inner-shelf circulation off the central Oregon Coast

    Creator:
    Kirincich, Anthony R.
    Abstract:
    Inner-shelf circulation and mechanisms of across-shelf transport of water masses were examined using seven years of observations collected by the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) program, a long-term monitoring effort along the central Oregon coast. Since 1998, moored velocity and hydrographic measurements have been obtained during the...
    Resource Type:
    Dissertation
    Full Text:
    , Ed Dever, Jonathan Nash, and Philip Watson for giving helpful suggestions and offering to read

  • Heterojunction Assisted Impact Ionization at the ZnS/Si Interface and Cu_10Te_4S_13 Photodiodes

    Creator:
    Reidy, Christopher F.
    Abstract:
    Several topics are presented in this dissertation, each of which has applications to solar cells and photodetectors. First, we discuss the growth of Cu10Te4S13, copper tellurium tetrahedrite. This material has interesting optical properties; it has a large joint density of states at the conduction band maximum and valence band minimum,...
    Resource Type:
    Dissertation

  • A numerical wave tank based on coupled potential flow-viscous flow model

    Creator:
    Zhang, Yi
    Abstract:
    In this study, a coupled potential flow-viscous flow model is used for numerical wave tank simulation. The solver satisfies all the requirements for such a simulation environment. The coupling scheme is based on a non-overlapping heterogeneous domain decomposition method. In this method, the flow domain consists of two subdomains. In...
    Resource Type:
    Dissertation

  • A GIS approach to estimating continuous hydraulic conductivity and equivalent hydraulic conductivity

    Creator:
    Arras, Tracy Lynn
    Abstract:
    Estimating the hydraulic conductivity of earth materials is important for many water resource modeling efforts, including predicting the transport of pollutants in ground water, computing surface runoff for flood control, and computing water budgets. This research implicitly used topography, soil, and climate data to estimate plausible continuous hydraulic conductivity values...
    Resource Type:
    Dissertation
    Full Text:
    Conductivity. Abstract approved: ______________________________________________________ Jonathan