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Filtering by: Creator Federiuk, J. Remove constraint Creator: Federiuk, J. Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Towards architecture-adaptable parallel programming

    Creator:
    Kumaran, Santhosh
    Abstract:
    There is a software gap in parallel processing. The short lifespan and small installation base of parallel architectures have made it economically infeasible to develop platform-specific parallel programming environments that deliver performance and programmability. One obvious solution is to build architecture-independent programming environments. But the architecture independence usually comes at...
    Resource Type:
    Dissertation
    Full Text:
    approved Michael J. Quinn There is a software gap in parallel processing. The short lifespan and small

  • 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:
    AN ABSTRACT OF THE DISSERTATION OF John J. Osborne V

  • 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
    Full Text:
    downwelling was first presented in Allen et al. (1995) Federiuk and Allen (1995) Allen and Newberger (1996

  • 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

  • Equatorward jets and poleward undercurrents along the eastern boundary of the mid-latitude north Pacific

    Creator:
    Pierce, Stephen D.
    Abstract:
    We sharpen our view of an eastern boundary current region during the upwelling season through the analysis of several data sets. We focus on the mesoscale flow field off of northern California, observed during the Coastal Transition Zone (CTZ) experiment of 1988. First, we estimate tidal currents in the region...
    Resource Type:
    Dissertation
    Full Text:
    . Bray, C. L. Greengrove, J. F. Borchardt, J. M. Federiuk, C. E. Dorman, R. L. Bernstein, and J. Largier

  • Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

    Creator:
    Peck, Erin K.
    Abstract:
    Quantification and comparison of morphological changes over the last ~300 y in Oregon salt marshes provide valuable insights into the tectonic, hydroclimatic, and anthropogenic processes shaping this important intertidal zone. Understanding of the rates and drivers of salt marsh change contextualizes intertidal habitats within the sediment routing system (i.e., source...
    Resource Type:
    Dissertation

  • Optics, structure and variability of the offshore Columbia River plume

    Creator:
    Saldías, Gonzalo
    Abstract:
    The Columbia River delivers the greatest amount of freshwater to the coastal ocean along the U.S. Pacific coast. This freshwater forms the Columbia River plume, a mesoscale plume with significant implications on coastal ocean physical, biological, chemical, and geological processes. The plume is transported south and offshore during the upwelling...
    Resource Type:
    Dissertation
    Full Text:
    ), backscatter (g-h), CDOM fluorescence (i-j), and chlorophyll–a (k-l

  • Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

    Creator:
    Pasmans, Ivo
    Abstract:
    Currently, forecasts produced by the Oregon-Washington (OR-WA) Coastal Ocean Forecast System are constrained by assimilation of only surface observations. The 4-dimensional variational (4DVAR) data assimilation (DA) algorithm is utilized to combine the model and the data, with the time-independent forecast ("background'') error covariance B. In this study, two possible improvements...
    Resource Type:
    Dissertation
    Full Text:
    sea-surface velocity observations used in chapters 2,4 and 5 were obtained from P.M. Kosro. J. A