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Filtering by: Alternative title ssim Research bulletin no. 8 Remove constraint Alternative title ssim: Research bulletin no. 8 Has journal sim Journal of Physical Oceanography Remove constraint Has journal sim: Journal of Physical Oceanography Rights Statement In Copyright Remove constraint Rights Statement: In Copyright

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Energy Flux and Dissipation in Luzon Strait: Two Tales of Two Ridges

Creator:

Alford, Matthew H., MacKinnon, Jennifer A., Nash, Jonathan D., Simmons, Harper, Pickering, Andy, Klymak, Jody M., Pinkel, Robert, Sun, Oliver, Rainville, Luc, Musgrave, Ruth, Beitzel, Tamara, Fu, Ke-Hsien, and Lu, Chung-Wei

Abstract:

Internal tide generation, propagation, and dissipation are investigated in Luzon Strait, a system of two quasi-parallel ridges situated between Taiwan and the Philippines. Two profiling moorings deployed for about 20 days and a set of nineteen 36-h lowered ADCP-CTD time series stations allowed separate measurement of diurnal and semidiurnal internal...

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amplification (Echeverri and Peacock 2010; Tang and Peacock 2010). One ultimate goal of the current research is
Summertime Coupling between Sea Surface Temperature and Wind Stress in the California Current System

Creator:

Chelton, Dudley B., Schlax, Michael G., and Samelson, Roger M.

Abstract:

Satellite observations of wind stress and sea surface temperature (SST) are analyzed to investigate ocean–atmosphere interaction in the California Current System (CCS). As in regions of strong SST fronts elsewhere in the World Ocean, SST in the CCS region is positively correlated with surface wind stress when SST fronts are...

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subject of ongoing research. Regardless of the detailed dynamics and thermody- namics of the SST
Internal Tide Reflection and Turbulent Mixing on the Continental Slope

Creator:

Nash, Jonathan D., Kunze, Eric, Toole, John M., and Schmitt, Ray W.

Abstract:

Observations of turbulence, internal waves, and subinertial flow were made over a steep, corrugated continental slope off Virginia during May–June 1998. At semidiurnal frequencies, a convergence of low-mode, onshore energy flux is approximately balanced by a divergence of high-wavenumber offshore energy flux. This conversion occurs in a region where the...

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decays on time scales O(1 day). No evidence for internal lee wave generation by flow over the slope’s
Large-Scale Forcing of the Agulhas Variability: The Seasonal Cycle

Creator:

Matano, R. P., Beier, E. J., Strub, P. T., and Tokmakian, R.

Abstract:

In this article the authors examine the kinematics and dynamics of the seasonal cycle in the western Indian Ocean in an eddy-permitting global simulation [Parallel Ocean Circulation Model, model run 4C (POCM-4C)]. Seasonal changes of the transport of the Agulhas Current are linked to the large-scale circulation in the tropical...

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contribution from the Indonesian Throughflow, there appears to be no dynamical linkage between the seasonal
Instability and Diapycnal Momentum Transport in a Double-Diffusive, Stratified Shear Layer

Creator:

Smyth, William D. and Kimura, Satoshi

Abstract:

The linear stability of a double-diffusively stratified, inflectional shear flow is investigated. Double-diffusive stratification has little effect on shear instability except when the density ratio R[subscript]ρ is close to unity. Double-diffusive instabilities have significant growth rates and can represent the fastest-growing mode even in the presence of inflectionally unstable shear...

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shear with a low Richardson number. In the linear regime, background shear has no effect on double
Coastal Wind-Driven Circulation in the Vicinity of a Bank. Part I: Modeling Flow over Idealized Symmetric Banks

Creator:

Whitney, Michael M. and Allen, J. S.

Abstract:

This study examines how coastal banks influence wind-driven circulation along stratified continental shelves. Numerical experiments are conducted for idealized symmetric banks; the standard bank (200 km long and 50 km wide) has dimensions similar to the Heceta Bank complex along the Oregon shelf. Model runs are forced with 10 days...

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over the bank. The downwelling jet is slowest and widest over the bank; there are no current reversals
Orthobaric Density: A Thermodynamic Variable for Ocean Circulation Studies

Creator:

de Szoeke, Roland A., Springer, Scott R., and Oxilia, David M.

Abstract:

A new density variable, empirically corrected for pressure, is constructed. This is done by first fitting compressibility (or sound speed) computed from global ocean datasets to an empirical function of pressure and in situ density (or specific volume). Then, by replacing true compressibility by this best-fit virtual compressibility in the...

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evolution equation contains no contribution from the baroclinicity vector. Orthobaric density surfaces are
Coastal Wind-Driven Circulation in the Vicinity of a Bank. Part II: Modeling Flow over the Heceta Bank Complex on the Oregon Coast

Creator:

Whitney, Michael M. and Allen, J. S.

Abstract:

This study investigates wind-driven circulation in the vicinity of the Heceta Bank complex along the Oregon shelf. Numerical experiments forced with steady winds (0.1 Pa) are conducted; upwelling and downwelling cases are compared. The asymmetric bank bathymetry is the only configurational difference from the symmetric bank runs analyzed in Part...

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southern bank half and follows a straighter path over shallower waters. There are no reversed currents
Dissipative Losses in Nonlinear Internal Waves Propagating across the Continental Shelf

Creator:

Moum, J. N., Farmer, D. M., Shroyer, E. L., Smyth, W. D., and Armi, L.

Abstract:

A single nonlinear internal wave tracked more than 100 wavelengths across Oregon’s continental shelf over a 12-h period exhibited nearly constant wave speed, c = 0.75 m s⁻¹, and amplitude, a = 15 m. The wavelength L gradually decreased from 220 m in 170-m water depth to 60 m in...

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stratification in balance with ��. In the solitary wave case, no external energy supply exists, and dE/dt
A Simple Dynamical Model of the Warm-Water Branch of the Middepth Meridional Overturning Cell

Creator:

Samelson, R. M.

Abstract:

A reduced-gravity model is presented of the warm-water branch of the middepth meridional overturning circulation in a rectangular basin with a circumpolar connection. The model describes the balance between production of warm water by Ekman advection across the circumpolar current, dissipation of warm water by eddy fluxes southward across the...

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) where the natural no-normal-flow conditions imply =F � n5 0 and C5 const on the contiguous rigid bound

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Academic Affiliation

College of Oceanic and Atmospheric Sciences30
College of Earth, Ocean, and Atmospheric Sciences2

Creator

Smyth, W. D.8
Moum, J. N.5
Allen, J. S.4
Nash, Jonathan D.4
Samelson, R. M.4
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Date

Date range begin – Date range end

Current results range from 2000 to 2016

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2010-20198
2000-200926

Language

English [eng]34

Peer Reviewed

Yes30

Resource Type

Article34

Rights Statement

In Copyright[remove]34

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