Index Catalog // ScholarsArchive@OSU

Equatorward jets and poleward undercurrents along the eastern boundary of the mid-latitude north Pacific

Creator:: Pierce, Stephen D.
Abstract:: We sharpen our view of an eastern boundary current region during the upwelling season through the analysis of several data sets. We focus on the mesoscale flow field off of northern California, observed during the Coastal Transition Zone (CTZ) experiment of 1988. First, we estimate tidal currents in the region...
Resource Type:: Dissertation
Full Text:: Eastern Boundary of the Mid-Latitude North Pacific by Stephen D. Pierce A THESIS submitted to Oregon

Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey I : R/V Wecoma cruise W0105c, 23 May to 13 June 2001

Creator:: Pierce, Stephen D. and Barth, John A.
Abstract:: We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on R/V Wecoma during cruise W0105c (23 May to 13 June 2001). The cruise was a component (Survey I) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The ADCP was an RD Instruments hull-mounted 153.6-kHz narrowband...
Resource Type:: Technical Report
Full Text:: . Pierce J. A. Barth College of Oceanic and Atmospheric Sciences Oregon State University Corvallis

Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey II : R/V Wecoma cruise W0108A, 6-25 August 2001

Creator:: Pierce, Stephen D. and Barth, John A.
Abstract:: We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on R/V Wecoma during cruise W0108a (6-25 August 2001). The cruise was a component (Survey II) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The ADCP was an RD Instruments hull-mounted 153-kHz narrowband unit. Data were...
Resource Type:: Technical Report

Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey III : R/V Wecoma cruise W0301B, 19 January - 9 February 2003

Creator:: Pierce, Stephen D. and Barth, John A.
Abstract:: We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on R/V Wecoma during cruise W0301b (19 January - 3 February 2003). The cruise was a component (Survey III) of the Coastal Ocean Advances in Shelf Transport (COAST) experiment. The ADCP was an RD Instruments hull-mounted 153-kHz narrowband...
Resource Type:: Technical Report

Secondary circulation associated with a shelfbreak front

Creator:: Barth, John A., Bogucki, Darek, Pierce, Stephen D., and Kosro, P. Michael, 1951-
Abstract:: Evidence for secondary circulation associated with a shelfbreak front is obtained from a high‐resolution, cross‐shelf section of hydrographic, optical and velocity fields. Convergence in the bottom boundary layer on the inshore side of the front and subsequent upwelling into the interior is evident by a mid‐water region of suspended bottom...
Resource Type:: Article
Full Text:: associated with a shelfbreak front John A. Barth, Darek Bogucki, Stephen D. Pierce, and P. Michael Kosro

Structure and dynamics of a coastal filament

Creator:: Dewey, Richard K., Moum, James N., Paulson, Clayton A., Caldwell, Douglas R., and Pierce, Stephen D.
Abstract:: Repeated microstructure transects across filaments in the coastal transition zone (CTZ) have Revealed fundamental structure and dynamics of the complicated features. The measurements allow detailed momentum and vorticity analyses and provide a possible explanations for structural asymmetry of the fronts. Observations made between July 2 and July 23, 1988, along...
Resource Type:: Article
Full Text:: Structure and Dynamics of a Coastal Filament JOURNAL OF

Improving Acoustic Doppler Current Profiler Accuracy with Wide-Area Differential GPS and Adaptive Smoothing of Ship Velocity

Creator:: Pierce, Stephen D., Barth, John A., and Smith, Robert L.
Abstract:: Accurate ship velocity is important for determining absolute currents from acoustic Doppler current profiler (ADCP) measurements. In this paper, the authors describe the application of two methods to improve the quality of ship velocity estimates. The first uses wide-area differential global positioning system (WADGPS) navigation to improve ship positioning. During...
Resource Type:: Article
Full Text:: Adaptive Smoothing of Ship Velocity STEPHEN D. PIERCE, JOHN A. BARTH, AND ROBERT L. SMITH College of

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

Acoustic doppler current profiler observations during the JGOFS AESOPS Antarctic polar front surveys I and II : R/V Revelle cruises from 20-Oct to 23-Nov 1997 and 9-Jan to 7-Feb 1998

Creator:: Pierce, Stephen D., Barth, John A., and Cowles, Timothy J.
Abstract:: We present velocity observations from a shipboard acoustic Doppler current profiler (ADCP) on RJV Revelle during cruises R9710 (20 October to 23 November 1997) and R9801 (9 January to 7 February 1998). The cruises were conducted as part of the Southern Ocean JGOFS (Joint Global Ocean Flux) Antarctic Polar Frontal...
Resource Type:: Technical Report
Full Text:: 1998 by S. D. Pierce, J. A. Barth, and T. J. Cowles College of Oceanic & Atmospheric Sciences

Anomalously warm July 2005 in the northern California Current : historical context and the significance of cumulative wind stress

Creator:: Pierce, Stephen D., Barth, John A., Thomas, Rebecca E., and Fleischer, Guy W.
Abstract:: In the northern California Current, the onset of the 2005 upwelling season was five weeks later than usual, and well established upwelling with a cold surface signature did not occur until about seven weeks after this. As part of the joint US-Canada Pacific hake survey, from 14–16 July 2005 we...
Resource Type:: Article
Full Text:: California Current: Historical context and the significance of cumulative wind stress Stephen D. Pierce,1

ScholarsArchive@OSU

Equatorward jets and poleward undercurrents along the eastern boundary of the mid-latitude north Pacific

Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey I : R/V Wecoma cruise W0105c, 23 May to 13 June 2001

Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey II : R/V Wecoma cruise W0108A, 6-25 August 2001

Acoustic doppler current profiler observations during the Coastal Ocean Advances in Shelf Transport (COAST) Survey III : R/V Wecoma cruise W0301B, 19 January - 9 February 2003

Secondary circulation associated with a shelfbreak front

Structure and dynamics of a coastal filament

Improving Acoustic Doppler Current Profiler Accuracy with Wide-Area Differential GPS and Adaptive Smoothing of Ship Velocity

Declining Oxygen in the Northeast Pacific

Acoustic doppler current profiler observations during the JGOFS AESOPS Antarctic polar front surveys I and II : R/V Revelle cruises from 20-Oct to 23-Nov 1997 and 9-Jan to 7-Feb 1998

Anomalously warm July 2005 in the northern California Current : historical context and the significance of cumulative wind stress

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