Index Catalog // ScholarsArchive@OSU

The dynamics of pressure and form drag on a sloping headland: Internal waves versus eddies

Creator:: Warner, Sally J. and MacCready, Parker
Abstract:: Topographically generated eddies and internal waves have traditionally been studied separately even though bathymetry that creates both phenomena is abundant in coastal regions. Here a numerical model is used to understand the dynamics of eddy and wave generation as tidal currents flow past Three Tree Point, a 1 km long,...
Resource Type:: Article
Full Text:: : Internal waves versus eddies Warner, S. J., and P. MacCready (2014), The dynamics of pressure and form

Seasonal Cross-Shelf Flow Structure, Upwelling Relaxation, and the Alongshelf Pressure Gradient in the Northern California Current System

Creator:: McCabe, Ryan M., Hickey, Barbara M., Dever, Edward P., and MacCready, Parker
Abstract:: Moored observations are used to investigate the seasonal change in vertical structure of the cross-shelf circulation at a midshelf location in the northern California Current System. A streamwise–normal coordinate system is employed to eliminate meander- and eddy-induced biases in the cross-shelf flow that are unaccounted for with an alternative, commonly...
Resource Type:: Article
Full Text:: System McCabe, R. M., Hickey, B. M., Dever, E. P., & MacCready, P. (2015). Seasonal Cross-Shelf Flow

Measurement of Tidal Form Drag Using Seafloor Pressure Sensors

Creator:: Warner, Sally J., MacCready, Parker, Moum, James N., and Nash, Jonathan D.
Abstract:: As currents flow over rough topography, the pressure difference between the up-and downstream sides results in form drag-a force that opposes the flow. Measuring form drag is valuable because it can be used to estimate the loss of energy from currents as they interact with topography. An array of bottom...
Resource Type:: Article
Full Text:: Seafloor Pressure Sensors SALLY J. WARNER AND PARKER MACCREADY School of Oceanography, University of

Evaluation of a coastal ocean circulation model for the Columbia River plume in summer 2004

Creator:: Liu, Yonggang, MacCready, Parker, Hickey, Barbara M., Dever, Edward P., Kosro, P. Michael, 1951-, and Banas, Neil S.
Abstract:: Realistic hindcast of the Columbia River estuarine-plume-shelf circulation in summer 2004 using the Regional Ocean Modeling System nested within the Navy Coastal Ocean Model (NCOM) is quantitatively evaluated with an extensive set of observations. The model has about equal skill at tidal and subtidal properties. Tidal circulation and water properties...
Resource Type:: Article
Full Text:: . Citation: Liu, Y., P. MacCready, B. M. Hickey, E. P. Dever, P. M. Kosro, and N. S. Banas (2009), Evaluation

River influences on shelf ecosystems: Introduction and synthesis

Creator:: Hickey, B. M., Kudela, R. M., Nash, Jonathan, Bruland, K. W., Peterson, W. T., MacCready, P., Lessard, E. J., Jay, D. A., Banas, N. S., Baptista, A. M., Dever, Edward P., Kosro, P. Michael, Kilcher, L. K., Homer-Devine, A. R., Zaron, E. D., McCabe, R. M., Peterson, J. O., Orton, P. M., Pan, J., and Lohan, M. C.
Abstract:: River Influences on Shelf Ecosystems (RISE) is the first comprehensive interdisciplinary study of the rates and dynamics governing the mixing of river and coastal waters in an eastern boundary current system, as well as the effects of the resultant plume on phytoplankton standing stocks, growth and grazing rates, and community...
Resource Type:: Article
Full Text:: . MacCready,1 E. J. Lessard,1 D. A. Jay,5 N. S. Banas,6 A. M. Baptista,7 E. P. Dever,3 P. M. Kosro,3 L. K

A numerical analysis of ice fog produced by automobiles

Creator:: Nelson, William George
Abstract:: A model of an exhaust plume was developed and programmed on a digital computer. The purpose of the model was to predict the concentration and size distribution of ice particles produced from automobile exhaust during arctic conditions. The model accounted for the nucleation, growth, and freezing of the condensed water...
Resource Type:: Dissertation
Full Text:: Hewson, Dr. William P. Lowry, Professor John G. Mingle, and. Dr. Charles E. Wicks for their assistance

On Symmetric Instabilities in Oceanic Bottom Boundary Layers

Creator:: Allen, J. S. and Newberger, P. A.
Abstract:: Model studies of two-dimensional, time-dependent, wind-forced, stratified downwelling circulation on the continental shelf have shown that the near-bottom offshore flow can develop time- and space-dependent fluctuations involving spatially periodic separation and reattachment of the bottom boundary layer and accompanying recirculation cells. Based primarily on the observation that the potential vorticity...
Resource Type:: Article
Full Text:: AND P. A. NEWBERGER College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis

On the Upwelling of Downwelling Currents

Creator:: Matano, Ricardo P. and Palma, Elbio D.
Abstract:: The term “downwelling currents” refers to currents with a downslope mass flux in the bottom boundary layer. Examples are the Malvinas and Southland Currents in the Southern Hemisphere and the Oyashio in the Northern Hemisphere. Although many of these currents generate the same type of highly productive ecosystems that is...
Resource Type:: Article
Full Text:: On the Upwelling of Downwelling Currents RICARDO P. MATANO

Three interacting freshwater plumes in the northern California Current System

Creator:: Hickey, B., McGabe, R., Geier, S., Dever, Edward P., and Kachel, N.
Abstract:: The northern California Current System is impacted by two primary freshwater sources: the Strait of Juan de Fuca and the Columbia River. The Columbia is frequently bidirectional in summer, with branches both north and south of the river mouth simultaneously. We describe the interaction of these two warm Columbia plumes...
Resource Type:: Article
Full Text:: complex strait region [MacCready et al., 2008]. However, recent drifter studies have shown clearly that in

Intensified Diurnal Tides along the Oregon Coast

Creator:: Osborne, J. J., Kurapov, A. L., Egbert, G. D., and Kosro, P. M.
Abstract:: Intensified diurnal tides are found along portions of the Oregon shelf (U.S. West Coast) based on analyses of high-frequency (HF) radar surface current data and outputs of a 1-km resolution ocean circulation model. The K₁ tidal currents with magnitudes near 0.07 m s⁻¹ over a wider part of the shelf...
Resource Type:: Article
Full Text:: . Amer. Meteor. Soc., 89, 1877–1888, doi:10.1175/2008BAMS2528.1. McCabe, R. M., P. MacCready, and G

ScholarsArchive@OSU

The dynamics of pressure and form drag on a sloping headland: Internal waves versus eddies

Seasonal Cross-Shelf Flow Structure, Upwelling Relaxation, and the Alongshelf Pressure Gradient in the Northern California Current System

Measurement of Tidal Form Drag Using Seafloor Pressure Sensors

Evaluation of a coastal ocean circulation model for the Columbia River plume in summer 2004

River influences on shelf ecosystems: Introduction and synthesis

A numerical analysis of ice fog produced by automobiles

On Symmetric Instabilities in Oceanic Bottom Boundary Layers

On the Upwelling of Downwelling Currents

Three interacting freshwater plumes in the northern California Current System

Intensified Diurnal Tides along the Oregon Coast

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