Index Catalog // ScholarsArchive@OSU

Creator:: Moum, J. N., Caldwell, D. R., Nash, J. D., and Gunderson, G. D.
Abstract:: Observations of mixing over the continental slope using a towed body reveal a great lateral extent (several kilometers) of continuously turbulent fluid within a few hundred meters of the boundary at depth 1600 m. The largest turbulent dissipation rates were observed over a 5 km horizontal region near a slope...
Resource Type:: Article
Full Text:: . MOUM, D. R. CALDWELL, J. D. NASH, AND G. D. GUNDERSON College of Oceanic and Atmospheric Sciences

Creator:: Matano, R. P. and Palma, E. D.
Abstract:: This article presents a semianalytic method to investigate the properties of energy transmission across bottom topography by barotropic Rossby waves. The method is first used to revisit the analytical estimates derived from wave-matching techniques and Wentzel–Kramers–Brillouin (WKB) approximations. The comparison between the semianalytic method and WKB indicates that the results...
Resource Type:: Article
Full Text:: Energy Transmission by Barotropic Rossby Waves Revisited R. P

Creator:: Skyllingstad, Eric D. and Samelson, R. M.
Abstract:: Interaction between mixed layer baroclinic eddies and small-scale turbulence is studied using a nonhydrostatic large-eddy simulation (LES) model. Free, unforced flow evolution is considered, for a standard initialization consisting of an 80-m-deep mixed layer with a superposed warm filament and two frontal interfaces in geostrophic balance, on a model domain...
Resource Type:: Article
Full Text:: Turbulent Mixing in the Surface Boundary Layer. Part I: Unforced Simulations ERIC D. SKYLLINGSTAD AND R. M

Creator:: Paduan, S. D. and DeSzoeke, R. A.
Abstract:: Subsurface temperature data and surface meteorological data are analyzed from thermistor chain moorings deployed near 50°N, 140°W during the Storm Transfer and Response Experiment (STREX). The upper-ocean heat and potential energy (PE) contents to 90 m are examined for an 18-day period and their changes compared to the sources and...
Resource Type:: Article

Creator:: Romea, R. D. and Allen, J. S.
Abstract:: Vertically propagating coastal internal Kelvin waves (IKWs) forward by the alongshore component of the wind at the coast are studied, utilizing an ƒ-plane model of a continuously stratified ocean with a vertical eastern boundary. With an infinitely deep ocean, several initial value problems that illustrate the basic properties of the...
Resource Type:: Article

Creator:: Smyth, W. D., Moum, J. N., and Caldwell, D. R.
Abstract:: The time evolution of mixing in turbulent overturns is investigated using a combination of direct numerical simulations (DNS) and microstructure profiles obtained during two field experiments. The focus is on the flux coefficient Γ, the ratio of the turbulent buoyancy flux to the turbulent kinetic energy dissipation rate ϵ. In...
Resource Type:: Article
Full Text:: Simulations and Microstructure Observations W. D. SMYTH, J. N. MOUM, AND D. R. CALDWELL College of Oceanic

Creator:: Moum, J. N., Hebert, D., Paulson, C. A., and Caldwell, D. R.
Abstract:: High correlations between turbulent dissipation rates and high-wavenumber internal waves and the high values of turbulent dissipation associated with internal wave activity suggest that internal waves are the main direct source of mixing in the thermocline above the core of the Equatorial Undercurrent. An extensive dataset obtained using a microstructure...
Resource Type:: Article

Creator:: Herbert, D., Moum, J. N., and Caldwell, D. R.
Abstract:: In spite of the effects of several form of temporal variability that tend to mask geographical patterns in turbulence intensity, our evidence indicates that the turbulence is enhanced above the equatorial undercurrent in comparison to latitudes north and south of it. This evidence consists of three meridional transects of micro-structure...
Resource Type:: Article

Creator:: Hebert, D., Moum, J. N., Paulson, C. A., and Caldwell, D. R.
Abstract:: In the low Richardson number shear flow above the Pacific Equatorial Undercurrent, a single vertical microstructure profile intersected the overturning crest of a packet of high horizontal wavenumber waves. The observed dissipation rates within the overturning wave were so high that if they were representative of the volume-averaged rate, the...
Resource Type:: Article

Creator:: Scott, R. K., Allen, J. S., Egbert, G. D., and Miller, R. N.
Abstract:: An idealized, linear model of the coastal ocean is used to assess the domain of influence of surface type data, in particular how much information such data contain about the ocean state at depth and how such information may be retrieved. The ultimate objective is to assess the feasibility of...
Resource Type:: Article
Full Text:: Model R. K. SCOTT, J. S. ALLEN, G. D. EGBERT, AND R. N. MILLER College of Oceanic and Atmospheric

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