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Filtering by: Creator Crow, John A. Remove constraint Creator: Crow, John A. Degree Field Oceanography Remove constraint Degree Field: Oceanography Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Influence of upwelling-season coastal currents on near-bottom dissolved oxygen concentrations over a submarine bank

    Creator:
    Adams, Katherine A.
    Abstract:
    Wind-driven coastal upwelling brings subsurface water onto the central-Oregon shelf after the spring transition each year. This cold and salty source water is oxygen-poor, yet above the hypoxic threshold, dissolved oxygen < 1.4 ml l⁻¹. Once on the shelf, dissolved oxygen (DO) concentrations of upwelled near-bottom waters are modified by...
    Resource Type:
    Dissertation
    Full Text:
    approved: John A. Barth Wind-driven coastal upwelling brings subsurface water onto the central-Oregon

  • Coastal ocean response to alongshore variations in topography and wind forcing

    Creator:
    Castelao, Renato Menezes
    Abstract:
    The effects of alongshore variability in topography (banks and capes) and spatial variability in the wind forcing, including the wind-stress curl, on coastal ocean circulation are studied using a combination of observations and model simulations. Satellite sea surface temperature observations are used to describe the seasonal evolution of temperature fronts...
    Resource Type:
    Dissertation
    Full Text:
    �A �"22

  • Dynamics of mesoscale motion in the California current

    Creator:
    Shearman, R. Kipp
    Resource Type:
    Dissertation
    Full Text:
    Mesoscale Motion in the California Current. Abstract approved: John A. Barth Several high-resolution

  • The effect of river discharge and wind forcing on the Oregon coastal ocean during fall and winter

    Creator:
    Mazzini, Piero Luigi Fernandes
    Abstract:
    Freshwater provided from river discharge influences the dynamics and circulation of most continental shelves around the world. It has profound effects on the transport and fate of materials and substances originated from rivers and estuaries, as well as on the ocean biogeochemistry and marine ecosystems. The effect of buoyancy forcing...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: John A. Barth Freshwater provided from river discharge influences the dynamics and

  • 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:
    Circulation off the Central Oregon Coast. Abstract approved: John A. Barth Inner-shelf circulation and

  • 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
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    High-Frequency Internal Variability on the Central Oregon Inner Shelf Abstract approved: John A

  • Statistical foraminiferal ecology from seasonal samples, central Oregon continental shelf

    Creator:
    Gunther, Fredrick John
    Abstract:
    This study examined the foraminifera and the ecologic conditions of the benthic environment of the Oregon shelf and the uppermost slope (75-550 m depth) between 143°45' N and 144°40' N. Seasonal collections monitored the near-bottom marine environment and the sedimentary substrate at 16 stations. The foraminiferal benthic fauna was examined...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRA.CT OF THE THESIS OF FREDRICK JOHN GUNTHER (Name) in

  • Interactions of wind-driven and tidally-driven circulation in the Oregon coastal ocean

    Creator:
    Osborne, John J.
    Abstract:
    Influences of tidal and slower (subtidal) oceanic flows over the continental shelf and slope off Oregon are studied using a high-resolution ocean circulation model and comparative model-data analyses. The model is based on the Regional Ocean Modeling System (ROMS), a fully nonlinear, three-dimensional model (using hydrostatic and Boussinesq approximations). The...
    Resource Type:
    Dissertation
    Full Text:
    the high-frequency radar data analyzed in Chapter 3. Dr. John A. Barth assisted in the development

  • Long baroclinic planetary waves in a nonzonal vertically sheared mean flow

    Creator:
    Cerovecki, Ivana
    Abstract:
    We consider long planetary waves of annual period linearized about a steady, wind-driven subtropical (ST) gyre circulation. The circulation divides the gyre into an eastern zone (EZ) where only the surface layer is in steady motion and a western zone (WZ) where both the surface and the middle layer are...
    Resource Type:
    Dissertation
    Full Text:
    . Title: Long Baroclinic Planetary Waves in a Nonzonal Vertically Sheared Mean Flow. /' Abstract

  • Numerical model investigations of wind-driven coastal circulation

    Creator:
    Cervantes, Brandy T.
    Abstract:
    The effects of wind forcing on coastal ocean circulation are studied using a numerical modeling approach. The first region of interest is on the North Carolina shelf, where the Coastal Ocean Processes (CoOP) Inner Shelf Study (ISS) took place during August - November 1994. ISS observations are used to initialize,...
    Resource Type:
    Dissertation
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    committee John A. Barth, Robert N. Miller, Roger Samelson, Rob Holman, and the graduate representative Todd