Index Catalog // ScholarsArchive@OSU

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

Change in Oregon’s Nearshore Groundfish Trawl Fishery: Perspectives from Science and Industry Data

Creator:: Howard, Rebecca A.
Abstract:: The commercial groundfish fishing industry and groundfish research have a long concurrent history of activity on the Oregon continental margin. Within the non-whiting groundfish fishery, the target species are primarily flatfishes, sablefish, lingcod, and rockfishes, though landings of each have fluctuated over time. Recent work shows that over the past...
Resource Type:: Masters Thesis

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:: , Anatoli Erofeev, Piero Mazzini, Kate Adams, Alejandra Sanchez, Gonzalo Sauldias Yau, and Pat Welch

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
Full Text:: . Wheatcroft Quantification and comparison of morphological changes over the last ~300 y in Oregon

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:: glider group for their amazing work, especially Anatoli Erofeev, which without his hard work, this

Applications of slow-moving autonomous platforms for passive acoustic monitoring and density estimation of marine mammals

Creator:: Fregosi, Selene
Abstract:: Advances in mobile autonomous vehicles for oceanographic sensing provide new opportunities for passive acoustic monitoring of marine mammals. Acoustically equipped mobile autonomous platforms, including gliders, deep-water profiling floats, and drifting surface buoys can survey for a variety of marine mammal species over intermediate spatiotemporal scales. Additionally, such mobile platforms may...
Resource Type:: Dissertation
Full Text:: gliders, Will, Otis, and Otis, Jr. to record sound. Anatoli Erofeev and Steve Pierce were my glider

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

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:: , Rodrigo and Steph, and my amazing, beautiful, strong, resourceful, brave and loving parents, Patricia y

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:: temperature at y = -180 km (white lines in upper panels). The model is initial- ized using the climatological

ScholarsArchive@OSU

Ensemble-variational data assimilation for dynamically challenging coastal ocean circulation

Change in Oregon’s Nearshore Groundfish Trawl Fishery: Perspectives from Science and Industry Data

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

Insights into Centennial-Scale Salt Marsh Morphodynamics from the 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

Applications of slow-moving autonomous platforms for passive acoustic monitoring and density estimation of marine mammals

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

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

Optics, structure and variability of the offshore Columbia River plume

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