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Subtidal inner-shelf circulation near Point Conception, California

Creator:: Cudaback, Cynthia N., Washburn, Libe, and Dever, Edward P.
Abstract:: We discuss connections between inner‐shelf and mid‐shelf circulation near Point Conception, California, as well as the wind forcing of inner‐shelf circulation. Point Conception marks the southern edge of a major upwelling zone that extends from Oregon to central California. The coastline makes a sharp eastward turn at Point Conception, and...
Resource Type:: Article
Full Text:: not in the Santa Barbara Channel. One exception to this generalization is a location in the Santa

Extracting the internal tide from data: Methods and observations from the Mixed Layer Dynamics Experiment

Creator:: Levine, Murray D. and Richman, James G.
Abstract:: Several methods are developed for analyzing data containing a highly variable internal tide. In particular, the methods are aimed at the analysis of moored observations with relatively few measurements in the vertical. The analysis depends upon an "elliptical decomposition" that is a generalization of the familiar "rotary decomposition." The technique...
Resource Type:: Article
Full Text:: , Oregon State University, Corvallis Several methods are developed for analyzing data containing a highly

Wave variance partitioning in the trough of a barred beach

Creator:: Howd, Peter A., Oltman-Shay, Joan, and Holman, Robert A.
Abstract:: The wave-induced velocity field in the nearshore is composed of contributions from incident wind waves (f > 0.05 Hz), surface infragravity waves (f < 0.05 Hz, lkl < (σ²/gβ) and shear waves (f < 0.05 Hz, lkl > σ²/gβ), where ƒ is the frequency, σ = 2πf, k is the...
Resource Type:: Article
Full Text:: Wave Variance Partitioning in the Trough of a Barred Beach

Observations of near-inertial waves in acoustic doppler current profiler measurements made during the mixed layer dynamics experiment

Creator:: Chereskin, T. K., Levine, Murray D., Harding, A. J., and Regier, L. A.
Abstract:: Measurements of upper ocean shear made during the Mixed Layer Dynamics Experiment (MILDEX) provide evidence of large horizontal scale motion at near‐inertial frequency. The measurements consist of shipboard acoustic Doppler current profiles. Four large‐scale spatial surveys of 2–4 days duration were made by the R/V Wecoma as a set of...
Resource Type:: Article
Full Text:: State UniverMty, Corvallis A. J. HARDING AND L. A. REGIER Scripps Institution of Oceanography, La

Spectral particulate attenuation and particle size distribution in the bottom boundary layer of a continental shelf

Creator:: Boss, Emmanuel, Pegau, W. Scott, Gardner, Wilford D., Zaneveld, J. Ronald, Barnard, Andrew H., Twardowski, Michael S., Chang, G. C., and Dickey, T. D.
Abstract:: Spectral attenuation and absorption coefficients of particulate matter and collocated hydrographic measurements were obtained in the Mid-Atlantic Bight during the fall of 1996 and the spring of 1997 as part of the Coastal Mixing and Optics experiment. Within the bottom boundary layer (BBL) the magnitude of the beam attenuation decreased...
Resource Type:: Article
Full Text:: , University of California, Santa Barbara, 6487 Calle Real Unit A, Goleta, CA 93117. W. D. Gardner

The role of turbulence stress divergence in decelerating a river plume

Creator:: Kilcher, Levi F., Nash, Jonathan D., and Moum, James N.
Abstract:: Turbulence controls the composition of river plumes through mixing and alters the plume's trajectory by diffusing its momentum. While believed to play a crucial role in decelerating river-source waters, the turbulence stress in a near-field river plume has not previously been observationally quantified. In this study, finely resolved density, velocity,...
Resource Type:: Article
Full Text:: The role of turbulence stress divergence in decelerating a river

Assimilation of surface velocity data into a primitive equation coastal ocean model

Creator:: Oke, Peter R., Allen, John S., Miller, Robert N., Egbert, Gary D., and Kosro, P. Michael, 1951-
Abstract:: A data assimilation system (DAS) of the wind‐driven, mesoscale shelf circulation off the Oregon coast is developed. The DAS assimilates low‐pass filtered surface velocity measurements, obtained from land‐based high‐frequency coastal radar arrays, into a primitive equation coastal ocean model using a sequential optimal interpolation scheme. Inhomogeneous and anisotropic estimates of...
Resource Type:: Article
Full Text:: jc000511 1..25 Assimilation of surface velocity data into a

Intrathermocline eddies in the coastal transition zone off central Chile (31–41°S)

Creator:: Hormazabal, Samuel, Combes, Vincent, Morales, Carmen E., Correa-Ramirez, Marco A., Di Lorenzo, Emmanuel, and Nuñez, Sergio
Abstract:: The three-dimensional structure and the origin of mesoscale anticyclonic intrathermocline eddies (ITEs) in the coastal transition zone (CTZ) off central Chile (31–41°S) were analyzed through the combination of data from oceanographic cruises and satellite altimetry, and the application of an eddy-resolving primitive equation ocean model coupled with a numerical experiment...
Resource Type:: Article
Full Text:: ) Hormazabal, S., V. Combes, C. E. Morales, M. A. Correa-Ramirez, E. Di Lorenzo, and S. Nuñez (2013

Poleward propagating subinertial alongshore surface currents off the U.S. West Coast

Creator:: Kim, Sung Yong, Cornuelle, Bruce D., Terrill, Eric J., Jones, Burt, Washburn, Libe, Moline, Mark A., Paduan, Jeffrey D., Garfield, Newell, Largier, John L., Crawford, Greg, and Kosro, P. Michael
Abstract:: The network comprising 61 high-frequency radar systems along the U.S. West Coast (USWC) provides a unique, high resolution, and broad scale view of ocean surface circulation. Subinertial alongshore surface currents show poleward propagating signals with phase speeds of O(10) and O(100–300) km d⁻¹ that are consistent with historical in situ...
Resource Type:: Article
Full Text:: . West Coast Sung Yong Kim,1 Bruce D. Cornuelle,2 Eric J. Terrill,3 Burt Jones,4 Libe Washburn,5 Mark A

Satellite observations of chlorophyll, phytoplankton biomass, and Ekman pumping in nonlinear mesoscale eddies

Creator:: Gaube, P., Chelton, D. B., Strutton, P. G., and Behrenfeld, Michael J.
Abstract:: Nonlinear mesoscale eddies can influence biogeochemical cycles in the upper ocean through vertical and horizontal advection of nutrients and marine organisms. The relative importance of these two processes depends on the polarity of an eddy (cyclones versus anticyclones) and the initial biological conditions of the fluid trapped in the core...
Resource Type:: Article
Full Text:: associated with downwelling, contain elevated levels of chlorophyll-a, enhanced primary production and

ScholarsArchive@OSU

Subtidal inner-shelf circulation near Point Conception, California

Extracting the internal tide from data: Methods and observations from the Mixed Layer Dynamics Experiment

Wave variance partitioning in the trough of a barred beach

Observations of near-inertial waves in acoustic doppler current profiler measurements made during the mixed layer dynamics experiment

Spectral particulate attenuation and particle size distribution in the bottom boundary layer of a continental shelf

The role of turbulence stress divergence in decelerating a river plume

Assimilation of surface velocity data into a primitive equation coastal ocean model

Intrathermocline eddies in the coastal transition zone off central Chile (31–41°S)

Poleward propagating subinertial alongshore surface currents off the U.S. West Coast

Satellite observations of chlorophyll, phytoplankton biomass, and Ekman pumping in nonlinear mesoscale eddies

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