Index Catalog // ScholarsArchive@OSU

Differentiating freshwater contributions and their variability to the surface and halocline layers of the Arctic and subarctic seas

Creator:: Alkire, Matthew Buckley
Abstract:: Dramatic and ongoing changes pervading the Arctic and subarctic seas over recent decades have motivated this effort to track and better understand hydrographic variability using chemical tracers. Particular emphasis has been paid to differentiating freshwater contributions to upper layers: namely Pacific water, meteoric water, and sea-ice melt/formation. Data collected in...
Resource Type:: Dissertation
Full Text:: Page 2.1 General map of the Arctic Ocean………………………………... 11 2.2 θ-S plots (left), salinity

Individual Transferable Quotas (ITQ) in the Pacific Halibut Fishery : Applications to the Magnuson Act

Creator:: Reisenweber, John W.
Abstract:: The Pacific halibut has supported a major commercial fishery on the West coast of the United States for over 100 years. In the past, the halibut fishery was managed by a policy of open access which led to an overcapitalized fishery and raised concerns about overfishing, fishing safety, and deteriorating...
Resource Type:: Masters Thesis
Full Text:: of the Commission is to preserve the halibut fishery of the North Pacific Ocean and the Bering Sea

Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific

Creator:: Evans, William Wiley
Abstract:: Tropical instability waves (TIWs) are prominent seasonal features in both the equatorial Pacific and Atlantic Oceans. This work quantifies their role in modulating the distributions of nutrients and phytoplankton biomass. Using an eight year record of biannual ship observations along the Tropical Atmosphere Ocean (TAO) buoy array, cruise sections crossing...
Resource Type:: Masters Thesis
Full Text:: coupling between the ocean and atmosphere. This is particularly true for the equatorial Pacific, because

The leading edge of a tropical instability wave : interpretation as a gravity current

Creator:: McHugh, Elizabeth Helen
Abstract:: A sharp temperature front, oriented along the south-west corner of the leading edge of a Tropical Instability Wave (TIW) warm trough, was encountered at 0°N, 140°W on November 2, 2008 and detected by a 0.45°C increase in SST that occurred over 7 s. The distinct SST signal was observed at...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Elizabeth Helen McHugh for the degree of Master of Science in Ocean, Earth and

Numerical and assimilative studies of the equatorial Pacific cold tongue

Creator:: Perez, Renellys Christine
Abstract:: Numerical model and assimilation experiments were conducted in the tropical Pacific Ocean to obtain a better understanding of the processes that control the cold tongue surface mixed layer temperature balance during August 1999 to July 2004. The numerical model was first applied to test two hypotheses (asymmetric background currents and...
Resource Type:: Dissertation
Full Text:: Numerical model and assimilation experiments were conducted in the tropical Pacific Ocean to obtain a

Shear and convective turbulence in a model of thermohaline intrusions

Creator:: Mueller, Rachael
Abstract:: Thermohaline interleaving is an important mechanism for laterally fluxing salt, heat, and nutrients between oceanic water masses. Interleaving is driven by a release of potential energy resulting from the vastly differing diffusivities of heat and salt in seawater. The flows are composed of stacked intrusions that flux more buoyant and...
Resource Type:: Masters Thesis
Full Text:: temperature and salinity profiles, observed as early as 1952 (Ruddick and Richards, 2003). Stommel and

Buoy and satellite observation of wind induced surface heat exchange in the intraseasonal oscillation over West Pacific and Indian Ocean

Creator:: Araligidad, Nilesh
Abstract:: The importance of wind-driven latent heat fluxes for supporting tropical intraseasonal precipitation variability is analyzed. Tropical intraseasonal variability in the west pacific and Indian ocean is analyzed for northern and southern hemisphere summer during 1999-2005 using satellite and buoy observations. A composite analysis of QuikSCAT ocean vector winds and TRMM...
Resource Type:: Masters Thesis
Full Text:: - ity in the west pacific and Indian ocean is analyzed for northern and southern hemisphere summer

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:: salinity recorded off Newport. For the first time, the CRP was tracked using an ocean observing system

Evaluation of data-poor and age-structure management strategies for west coast rockfish

Creator:: Arnold, Linsey M.
Abstract:: Management strategies to prevent overfishing while achieving optimum yield vary according to the available data and life history of the fished stock. I evaluated two sets of management strategies for Pacific coast rockfish: strategies to set harvest limits for data-poor stocks, and strategies intended to protect the age structure of...
Resource Type:: Masters Thesis
Full Text:: data and life history of the fished stock. I evaluated two sets of management strategies for Pacific

Phosphorus control of nitrogen fixation

Creator:: Watkins-Brandt, Katie S.
Abstract:: Under conditions of fixed N-limitation, as with most oligotrophic systems, the process of biological N₂ fixation (diazotrophy) is favored, provided the necessary trace elements and vitamins are sufficient. Despite the well understood contributions of N₂ fixation in oligotrophic regions, the nutritional and ecological controls of marine diazotrophs have not been...
Resource Type:: Masters Thesis
Full Text:: Hawaii, Mike Brzezinski chief scientist of the Pacific Open Ocean Bloom cruise and Zbigniew Kolber

ScholarsArchive@OSU

Differentiating freshwater contributions and their variability to the surface and halocline layers of the Arctic and subarctic seas

Individual Transferable Quotas (ITQ) in the Pacific Halibut Fishery : Applications to the Magnuson Act

Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific

The leading edge of a tropical instability wave : interpretation as a gravity current

Numerical and assimilative studies of the equatorial Pacific cold tongue

Shear and convective turbulence in a model of thermohaline intrusions

Buoy and satellite observation of wind induced surface heat exchange in the intraseasonal oscillation over West Pacific and Indian Ocean

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

Evaluation of data-poor and age-structure management strategies for west coast rockfish

Phosphorus control of nitrogen fixation

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