Index Catalog // ScholarsArchive@OSU

Creator:: Kelly, Samuel M., Jones, Nichole L., and Nash, Jonathan D.
Abstract:: Abstract: Tide-topography interactions dominate the transfer of tidal energy from large to small scales. At present, it is poorly understood how low-mode internal tides reflect and scatter along the continental margins. Here, the coupling equations for linear tides model (CELT) are derived to determine the independent modal solutions to Laplace's...
Resource Type:: Article
Full Text:: Equations in a Fluid with One Horizontal Dimension and Variable Depth SAMUEL M. KELLY AND NICOLE L. JONES

Creator:: Lerczak, James A. and Geyer, W. Rockwell
Abstract:: The dynamics of lateral circulation in an idealized, straight estuary under varying stratification conditions is investigated using a three-dimensional, hydrostatic, primitive equation model in order to determine the importance of lateral circulation to the momentum budget within the estuary. For all model runs, lateral circulation is about 4 times as...
Resource Type:: Article
Full Text:: phoc_34_606.1410_1428.tp 1410 VOLUME 34J O U R N A L O F P H Y S I C A

Creator:: Smyth, W. D. and Kimura, S.
Abstract:: Mixing due to sheared salt fingers is studied by means of direct numerical simulations (DNS) of a double-diffusively unstable shear layer. The focus is on the “moderate shear” case, where shear is strong enough to produce Kelvin–Helmholtz (KH) instability but not strong enough to produce the subharmonic pairing instability. This...
Resource Type:: Article
Full Text:: jpo4611 1364..1384 Mixing in a Moderately Sheared Salt-Fingering

Creator:: Smyth, W. D., Carpenter, J. R., and Lawrence, G. A.
Abstract:: Direct simulations are used to study turbulence and mixing in Holmboe waves. Previous results showing that mixing in Holmboe waves is comparable to that found in the better-known Kelvin–Helmholtz (KH) billows are extended to cover a range of stratification levels. Mixing efficiency is discussed in detail, as are effective diffusivities...
Resource Type:: Article
Full Text:: Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon J. R. CARPENTER AND G. A

Creator:: Killworth, Peter D., Chelton, Dudley B., and de Szoeke, Roland A.
Abstract:: Planetary or Rossby waves are the predominant way in which the ocean adjusts on long (year to decade) timescales. The motion of long planetary waves is westward, at speeds ≥1 cm s⁻¹ . Until recently, very few experimental investigations of such waves were possible because of scarce data. The advent...
Resource Type:: Article
Full Text:: 1946 VOLUME 27J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y

Creator:: Edwards, Kathleen A., MacCready, Parker, Moum, James N., Pawla, Geno, Klymak, Jody M., and Perlin, Alexander
Abstract:: Barotropic tidal currents flowing over rough topography may be slowed by two bottom boundary–related processes: tangential stress of the bottom boundary layer, which is generally well represented by a quadratic drag law, and normal stress from bottom pressure, known as form drag. Form drag is rarely estimated from oceanic observations...
Resource Type:: Article
Full Text:: phoc_34_411.1297_1312.tp VOLUME 34 JUNE 2004J O U R N A L O F P H Y S I

Creator:: Moum, J. N. and Nash, J. D.
Abstract:: Recent turbulence measurements over a small bank on the continental shelf off Oregon reveal a previously undetected site for intense mixing of the coastal ocean. The flow is hydraulically controlled and turbulence diffusivities over the bank are more than 100 times greater than estimates made on the shelf away from...
Resource Type:: Article
Full Text:: phoc_30_1106.2049_2054.tp 1 AUGUST 2000 2049M O U M A N D N A S H q

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...
Resource Type:: Article
Full Text:: Instability and Diapycnal Momentum Transport in a Double

Creator:: Kelly, Samuel M., Nash, Jonathan D., Martini, Kim I., Alford, Matthew H., and Kunze, Eric
Abstract:: The linear transfer of tidal energy from large to small scales is quantified for small tidal excursion over a near-critical continental slope. A theoretical framework for low-wavenumber energy transfer is derived from “flat bottom” vertical modes and evaluated with observations from the Oregon continental slope. To better understand the observations,...
Resource Type:: Article
Full Text:: High Modes on a Continental Slope SAMUEL M. KELLY* AND JONATHAN D. NASH College of Oceanic and

Creator:: Wijesekera, H. W., Jarosz, E., Teague, W. J., Wang, D. W., Fribance, D. B., Moum, J. N., and Warner, S. J.
Abstract:: Pressure differences across topography generate a form drag that opposes the flow in the water column, and viscous and pressure forces acting on roughness elements of the topographic surface generate a frictional drag on the bottom. Form drag and bottom roughness lengths were estimated over the East Flower Garden Bank...
Resource Type:: Article
Full Text:: Measurements of Form and Frictional Drags over a Rough

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