Index Catalog // ScholarsArchive@OSU

Creator:: Barth, John A.
Abstract:: The stability of a coastal jet and front is investigated using the primitive equations applied to a continuously stratified flow in geostrophic balance. A linear stability analysis successfully explains the growth of two modes of instability with distinctly different horizontal scales. A long-wavelength mode (fastest-growing wavelength of 0(100 km)) is...
Resource Type:: Article
Full Text:: vertical velocity maximum (20 m d -• at 30 m) is associated with a frontal instability with a reasonable

Creator:: Kurapov, Alexander, Allen, John S., Egbert, Gary D., Miller, Robert N., Kosro, P. Michael, Levine, Murray D., and Barth, John A.
Abstract:: Horizontal current measurements from an array of moored acoustic Doppler profilers are assimilated sequentially into a model of coastal wind-driven circulation off Oregon during the upwelling season of May–August 2001. Model results are compared against independent moored and ship survey data to document a positive effect of velocity data assimilation...
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Full Text:: , G. D. Egbert, R. N. Miller, P. M. Kosro, M. D. Levine, T. Boyd, and J. A. Barth College of Oceanic

Creator:: Barth, John A., Pierce, S. D., and Castelao, R. M.
Abstract:: During summer 2001, high-resolution hydrographic, velocity, and bio-optical surveys were conducted over Heceta Bank off central Oregon. North of the bank, upwelling over simple bottom topography exhibited a classic response with a midshelf, baroclinic coastal jet and upwelled isopycnals. The coastal upwelling jet follows the bank topography as it widens...
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Full Text:: midshelf submarine bank J. A. Barth, S. D. Pierce, and R. M. Castelao College of Oceanic and Atmospheric

Creator:: Barth, John A., Cowles, Timothy J., and Pierce, Stephen D.
Abstract:: As part of the U.S. Joint Global Ocean Flux Study Southern Ocean program, high-resolution surveys of the Antarctic Polar Front near 170øW were conducted during October-November 1997 with a towed undulating system equipped with conductivity-temperature-depth and bio-optical sensors. Transects along 170°W and two successive mapping surveys revealed zonal bands with...
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Full Text:: Antarctic Polar Front near 170øW during austral spring John A. Barth, Timothy J. Cowles, and Stephen D

Creator:: Dale, Andrew C., Barth, John A., Levine, Murray D., and Austin, J. A.
Abstract:: Observations, from the Oregon continental shelf, describe the slumping of a coastal upwelling front in response to a reversal of winds from upwelling-to downwelling-favorable. Initially, the front outcropped in a surface mixed layer of depth 10–20 m with a pronounced cross-shelf density gradient. Following wind reversal, both the unbalanced cross-shelf...
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Full Text:: . Barth,1 M. D. Levine,1 and J. A. Austin3 Received 26 January 2007; revised 5 May 2007; accepted 14

Creator:: Bogucki, D. J., Redekopp, L. G., and Barth, John A.
Abstract:: Observations of internal solitary waves (ISWs) and of their role in sediment resuspension during the Coastal Mixing and Optics 1996 (CMO 96) experiment are reported. The largest resuspension events observed in the experiment can be related to retarded flow under the wave footprint. Two distinctly different periods of resuspension events...
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Full Text:: Optics 1996 experiment: Multimodal structure and resuspension D. J. Bogucki Rosenstiel School of Marine

Creator:: Kim, Sangil and Barth, John A.
Abstract:: Connectivity and larval dispersal is explored off the Oregon coast during the summer upwelling season of 2001 using numerical ocean circulation simulations. The study region, with strong wind-driven currents and variable topography, is modeled using the Regional Ocean Modeling System (ROMS) forced by the Coupled Ocean Atmosphere Mesoscale Prediction System....
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Full Text:: Oregon coast estimated by numerical simulations Sangil Kim1 and John A. Barth1 Received 20 October 2010

Creator:: Barth, John A. and Wheeler, Patricia A.
Abstract:: The Coastal Ocean Advances in Shelf Transport (COAST) program conducted an interdisciplinary study of coastal upwelling off central Oregon during summer 2001. Two intensive field efforts during May–June and August 2001 were coordinated with ocean circulation, ecosystem, and atmospheric modeling of the region. A primary goal was to contrast the...
Resource Type:: Article
Full Text:: estimate the cross-shelf speed in the bottom boundary layer. The cross-shelf speed (up to 7 km d�1 onshelf

Creator:: Castelao, Renato M. and Barth, John A.
Abstract:: Repeated mesoscale surveys of waters over the shelf and slope off Oregon were conducted during spring and summer of 2001 to study the spatial structure of the velocity and hydrographic fields. The ocean response to wind forcing is compared between a region of relatively simple topography with alongshore uniformity and...
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Full Text:: John A. Barth College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon

Creator:: Austin, Jay A. and Barth, John A.
Abstract:: As part of an experiment to study wind-driven coastal circulation, 17 hydrographic surveys of the middle to inner shelf region off the coast of Newport, OR (44.65°N, from roughly the 90 m isobath to the 10 m isobath) were performed during Summer 1999 with a small, towed, undulating vehicle. The...
Resource Type:: Article
Full Text:: , Norfolk, Virginia, USA John A. Barth College of Oceanic and Atmospheric Sciences, Oregon State University

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