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• 11. [Article] Temporal variability of near-bottom dissolved oxygen during upwelling off central Oregon

  This is the publisher’s pdf. The article is copyrighted by the American Geophysical Union and published by John Wiley & Sons, Inc. It can be found at: http://onlinelibrary.wiley.com/journal/10.1002/(IS...

  Citation × Citation Citation Abstract Copy Title: Temporal variability of near-bottom dissolved oxygen during upwelling off central Oregon Author: Chan, Francis, Adams, Katherine A., Barth, John A. This is the publisher’s pdf. The article is copyrighted by the American Geophysical Union and published by John Wiley & Sons, Inc. It can be found at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291. Title: Temporal variability of near-bottom dissolved oxygen during upwelling off central Oregon Author: Chan, Francis, Adams, Katherine A., Barth, John A. This is the publisher’s pdf. The article is copyrighted by the American Geophysical Union and published by John Wiley & Sons, Inc. It can be found at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2169-9291. Close

• 12. [Article] Zooplankton Distribution and Transport in the California Current off Oregon

  This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Inter-Research and can be found at: http://www.int-res.com/journals/meps/meps-h...

  Citation × Citation Citation Abstract Copy Title: Zooplankton Distribution and Transport in the California Current off Oregon Author: Cowles, T., Zhou, M., Pierce, S. D., Barth, John A., Wu, D. This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Inter-Research and can be found at: http://www.int-res.com/journals/meps/meps-home/. Title: Zooplankton Distribution and Transport in the California Current off Oregon Author: Cowles, T., Zhou, M., Pierce, S. D., Barth, John A., Wu, D. This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Inter-Research and can be found at: http://www.int-res.com/journals/meps/meps-home/. Close

• 13. [Article] Microstructure Measurements from a Towed Undulating Platform

  MicroSoar, an undulating profiler capable of measuring turbulence parameters such as Thorpe scales and thermal dissipation rate while being towed at speeds of up to 4 m s⁻¹, offers the possibility of obtaining ...

  Citation × Citation Citation Abstract Copy Title: Microstructure Measurements from a Towed Undulating Platform Author: Erofeev, Anatoli Y., Ott, Michael W., Barth, John A. MicroSoar, an undulating profiler capable of measuring turbulence parameters such as Thorpe scales and thermal dissipation rate while being towed at speeds of up to 4 m s⁻¹, offers the possibility of obtaining a close-to-synoptic image of mixing over large spatial areas. In this paper, the method of calculating Thorpe scales from the high-frequency MicroSoar data is developed, and results from data taken off the coast of Oregon during the summer of 2001 are presented. Large Thorpe scales and elevated measurements of the thermal dissipation rate are shown to be associated with shear at the edge of the coastal jet. It is further shown that using MicroSoar data rather than Sea-Bird conductivity–temperature–depth data extends the range of measurable overturns to smaller scales, particularly in regions of low stratification. Title: Microstructure Measurements from a Towed Undulating Platform Author: Erofeev, Anatoli Y., Ott, Michael W., Barth, John A. MicroSoar, an undulating profiler capable of measuring turbulence parameters such as Thorpe scales and thermal dissipation rate while being towed at speeds of up to 4 m s⁻¹, offers the possibility of obtaining a close-to-synoptic image of mixing over large spatial areas. In this paper, the method of calculating Thorpe scales from the high-frequency MicroSoar data is developed, and results from data taken off the coast of Oregon during the summer of 2001 are presented. Large Thorpe scales and elevated measurements of the thermal dissipation rate are shown to be associated with shear at the edge of the coastal jet. It is further shown that using MicroSoar data rather than Sea-Bird conductivity–temperature–depth data extends the range of measurable overturns to smaller scales, particularly in regions of low stratification. Close

• 14. [Article] Mesoscale physical and bio-optical structure of the Antarctic Polar Front near 170°W during austral spring

  copyrighted by American Geophysical Union

  Citation × Citation Citation Abstract Copy Title: Mesoscale physical and bio-optical structure of the Antarctic Polar Front near 170°W during austral spring Author: Cowles, Timothy J., Barth, John A., Pierce, Stephen D. copyrighted by American Geophysical Union Title: Mesoscale physical and bio-optical structure of the Antarctic Polar Front near 170°W during austral spring Author: Cowles, Timothy J., Barth, John A., Pierce, Stephen D. copyrighted by American Geophysical Union Close

• 15. [Article] Flow-topography interactions in the northern California Current System observed from geostationary satellite data

  copyrighted by American Geophysical Union

  Citation × Citation Citation Abstract Copy Title: Flow-topography interactions in the northern California Current System observed from geostationary satellite data Author: Castelao, Renato M., Mavor, Timothy P., Barth, John A. copyrighted by American Geophysical Union Title: Flow-topography interactions in the northern California Current System observed from geostationary satellite data Author: Castelao, Renato M., Mavor, Timothy P., Barth, John A. copyrighted by American Geophysical Union Close

• 16. [Article] Anomalous southward advection during 2002 in the Northern California current : evidence from Lagrangian Surface Drifters

  copyrighted by American Geophysical Union

  Citation × Citation Citation Abstract Copy Title: Anomalous southward advection during 2002 in the Northern California current : evidence from Lagrangian Surface Drifters Author: Barth, John A. copyrighted by American Geophysical Union Title: Anomalous southward advection during 2002 in the Northern California current : evidence from Lagrangian Surface Drifters Author: Barth, John A. copyrighted by American Geophysical Union Close

• 17. [Article] Diagnosis of the Three-Dimensional Circulation Associated with Mesoscale Motion in the California Current

  A high-resolution upper-ocean survey of a cyclonic jet meander and an adjacent cyclonic eddy in the California Current region near 38°N, 126°W was conducted as part of the summer of 1993 Eastern Boundary ...

  Citation × Citation Citation Abstract Copy Title: Diagnosis of the Three-Dimensional Circulation Associated with Mesoscale Motion in the California Current Author: Shearman, R. Kipp, Kosro, P. Michael, Barth, John A. A high-resolution upper-ocean survey of a cyclonic jet meander and an adjacent cyclonic eddy in the California Current region near 38°N, 126°W was conducted as part of the summer of 1993 Eastern Boundary Currents program. Temperature and salinity were measured from a SeaSoar vehicle, and velocity was measured by shipboard acoustic Doppler current profiler (ADCP). SeaSoar data show a density front at a depth of 70–100 m with strong cyclonic curvature. The geostrophic velocity fields, referenced to the ADCP data at 200 m, show a strong surface-intensified jet (maximum speed of 0.9 m s⁻¹) that follows the density front along a cyclonic meander. Relative vorticities within the jet are large, ranging from −0.8ƒ to +1.2ƒ, where ƒ is the local Coriolis parameter. The SeaSoar density and ADCP velocity data are used to diagnose the vertical velocity via the Q-vector form of the quasigeostrophic omega equation. The diagnosed vertical velocity field shows a maximum speed of 40–45 m d⁻¹. The lateral distribution of vertical velocity is characterized by two length scales: a large (~75 km) pattern where there is downwelling upstream and upwelling downstream of the cyclonic bend, and smaller patches arrayed along the jet core with diameters of 20–30 km. Geostrophic streamline analysis of vertical velocity indicates that water parcels make net vertical excursions of 20–30 m over 2–3 days, resulting in net vertical velocities of 7–15 m d⁻¹. Water parcels moving along geostrophic streamlines experience maximum vertical velocities in the regions of maximum alongstream change in relative vorticity, an indication of potential vorticity conservation. Title: Diagnosis of the Three-Dimensional Circulation Associated with Mesoscale Motion in the California Current Author: Shearman, R. Kipp, Kosro, P. Michael, Barth, John A. A high-resolution upper-ocean survey of a cyclonic jet meander and an adjacent cyclonic eddy in the California Current region near 38°N, 126°W was conducted as part of the summer of 1993 Eastern Boundary Currents program. Temperature and salinity were measured from a SeaSoar vehicle, and velocity was measured by shipboard acoustic Doppler current profiler (ADCP). SeaSoar data show a density front at a depth of 70–100 m with strong cyclonic curvature. The geostrophic velocity fields, referenced to the ADCP data at 200 m, show a strong surface-intensified jet (maximum speed of 0.9 m s⁻¹) that follows the density front along a cyclonic meander. Relative vorticities within the jet are large, ranging from −0.8ƒ to +1.2ƒ, where ƒ is the local Coriolis parameter. The SeaSoar density and ADCP velocity data are used to diagnose the vertical velocity via the Q-vector form of the quasigeostrophic omega equation. The diagnosed vertical velocity field shows a maximum speed of 40–45 m d⁻¹. The lateral distribution of vertical velocity is characterized by two length scales: a large (~75 km) pattern where there is downwelling upstream and upwelling downstream of the cyclonic bend, and smaller patches arrayed along the jet core with diameters of 20–30 km. Geostrophic streamline analysis of vertical velocity indicates that water parcels make net vertical excursions of 20–30 m over 2–3 days, resulting in net vertical velocities of 7–15 m d⁻¹. Water parcels moving along geostrophic streamlines experience maximum vertical velocities in the regions of maximum alongstream change in relative vorticity, an indication of potential vorticity conservation. Close

• 18. [Article] Time-dependent, wind-driven flow over a shadow midshelf submarine bank

  copyrighted by American Geophysical Union

  Citation × Citation Citation Abstract Copy Title: Time-dependent, wind-driven flow over a shadow midshelf submarine bank Author: Castelao, R. M., Pierce, S. D., Barth, John A. copyrighted by American Geophysical Union Title: Time-dependent, wind-driven flow over a shadow midshelf submarine bank Author: Castelao, R. M., Pierce, S. D., Barth, John A. copyrighted by American Geophysical Union Close

• 19. [Article] Assimilation of moored velocity data in a model of coastal wind-driven circulation off Oregon: Multivariate capabilities

  Copyrighted by American Geophysical Union.

  Citation × Citation Citation Abstract Copy Title: Assimilation of moored velocity data in a model of coastal wind-driven circulation off Oregon: Multivariate capabilities Author: Levine, Murray D., Kosro, P. Michael, Miller, Robert N., Egbert, Gary D., Kurapov, Alexander, Allen, John S., Barth, John A. Copyrighted by American Geophysical Union. Title: Assimilation of moored velocity data in a model of coastal wind-driven circulation off Oregon: Multivariate capabilities Author: Levine, Murray D., Kosro, P. Michael, Miller, Robert N., Egbert, Gary D., Kurapov, Alexander, Allen, John S., Barth, John A. Copyrighted by American Geophysical Union. Close

• 20. [Article] Chlorophyll enchancement and mixing associated with meanders of the shelf break front in the Mid-Atlantic Bight

  copyrighted by American Geophysical Union

  Citation × Citation Citation Abstract Copy Title: Chlorophyll enchancement and mixing associated with meanders of the shelf break front in the Mid-Atlantic Bight Author: Yoder, J. A., Cornillon, P. C., Barth, John A., Ryan, J. P. copyrighted by American Geophysical Union Title: Chlorophyll enchancement and mixing associated with meanders of the shelf break front in the Mid-Atlantic Bight Author: Yoder, J. A., Cornillon, P. C., Barth, John A., Ryan, J. P. copyrighted by American Geophysical Union Close