Index Catalog // ScholarsArchive@OSU

Declining Oxygen in the Northeast Pacific

Creator:: Pierce, Stephen D., Barth, John A., Shearman, R. Kipp, and Erofeev, Anatoli Y.
Abstract:: Climate models predict a decrease in oceanic dissolved oxygen and a thickening of the oxygen minimum zone, associated with global warming. Comprehensive observational analyses of oxygen decline are challenging, given generally sparse historical data. The Newport hydrographic (NH) line off central Oregon is one of the few locations in the...
Resource Type:: Article
Full Text:: * STEPHEN D. PIERCE, JOHN A. BARTH, R. KIPP SHEARMAN, AND ANATOLI Y. EROFEEV College of Oceanic and

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:: . Barth, R.K. Shearman, and A. Erofeev collected the glider observations which are used in chapters 2 and

Anomalous Near-Surface Low-Salinity Pulses off the Central Oregon Coast

Creator:: Mazzini, Piero L. F., Risien, Craig M., Barth, John A., Pierce, Stephen D., Erofeev, Anatoli, Dever, Edward P., Kosro, P. Michael, Levine, Murray D., Shearman, R. Kipp, and Vardaro, Michael F.
Abstract:: From mid-May to August 2011, extreme runoff in the Columbia River ranged from 14,000 to over 17,000 m³/s, more than two standard deviations above the mean for this period. The extreme runoff was the direct result of both melting of anomalously high snowpack and rainfall associated with the 2010–2011 La Niña....
Resource Type:: Article
Full Text:: Oregon Coast Mazzini, P. L., Risien, C. M., Barth, J. A., Pierce, S. D., Erofeev, A., Dever, E. P

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:: Anatoli Erofeev for teaching me how to remotely pilot Slocum gliders. Thanks to Dr. Barth and Dr

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:: Piero L.F. Mazzini, John A. Barth, Robert K. Shearman and Anatoli Erofeev Journal of Physical

Absolute water velocity profiles from glider-mounted acoustic doppler current profilers

Creator:: Ordonez, Christopher Edward
Abstract:: This paper details a method to compute absolute water velocity profiles from glider-based acoustic Doppler current profiler (ADCP) measurements based on the "shear method" developed for lowered ADCPs. The instrument is a 614-kHz Teledyne RDI ADCP integrated into the body of a Teledyne Webb Research Slocum Glider. Shear is calculated...
Resource Type:: Masters Thesis
Full Text:: . Kipp Shearman, John A. Barth, T. Patrick Welch, Anatoli Erofeev, Zen Kurokawa 5 2.1

The Role of Submesoscale Features in Transporting Heat and Salt Across Ocean Fronts

Creator:: Sanchez-Rios, Alejandra
Abstract:: The focus of this dissertation is the analysis of submesoscale and finescale features measured at oceanic fronts and the role they play in the transport of heat and salt. Two different geographical areas were used to analyze this transport: one, an area on the western side of the North Atlantic...
Resource Type:: Dissertation
Full Text:: velocity (a-e), relative cross- flow velocity (f-j), and relative vorticity ζk = ( ∂v ∂x − ∂u ∂y ) f−1 (k

Perceived comfort of three styles of men's running pants

Creator:: Christel, Deborah A.
Abstract:: Athletic workout clothing is designed to help the wearer stay comfortable, cool, and dry. There are several different styles of athletic apparel available at retailers and each individual has a preference as to what is comfortable for him or her. Comfort of clothing has traditionally been related to the fabric...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Deborah A. Christel for the degree of Master of Science in Design and Human

Above and Below : Oregon Coastal Phytoplankton Bloom Dynamics from Sea and Space

Creator:: McKibben, S. Morgaine
Abstract:: Phytoplankton are a sentinel class of organisms in the marine environment. Through their photosynthetic activity in sunlit waters worldwide, phytoplankton shape the health and productivity of marine ecosystems and impact the global climate. In this work a range of ocean sensing technologies (via ships, surf zone sampling, moorings, gliders, and...
Resource Type:: Dissertation
Full Text:: . Thank you to Anatoli Erofeev for taking the time to process (and reprocess) the data for for me and

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:: alongshore direction except at y=0 km where an estuary is included). 4 1.3 Response of a high-discharge

ScholarsArchive@OSU

Declining Oxygen in the Northeast Pacific

Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

Anomalous Near-Surface Low-Salinity Pulses off the Central Oregon Coast

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

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

Absolute water velocity profiles from glider-mounted acoustic doppler current profilers

The Role of Submesoscale Features in Transporting Heat and Salt Across Ocean Fronts

Perceived comfort of three styles of men's running pants

Above and Below : Oregon Coastal Phytoplankton Bloom Dynamics from Sea and Space

Optics, structure and variability of the offshore Columbia River plume

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