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Stable Jet Modes：A Special Case of Eddy and Mean Flow Interaction
Stable Jet Modes Eddy Mean Flow Interaction
2009/2/23
The quasi-geostrophic, small-amplitude free modes of oscillation are examined for a midlatitude ocean basin with mean currents. Attention is restricted to a particular class of mean currents which are...
A Theory of the Mean Flow Driven by Long Internal Waves in a Rotating Basin, with Application to Lake Kinneret
Mean Flow Driven Rotating Basin Long Internal Waves
2009/2/13
The rectified flow induced by wind-driven internal seiches in a rotating lake is studied. Friction and nonlinearity combine to generate a secondary mean flow which is calculated analytically for the c...
Mean Flow Generation on a Continental Margin by Periodic Wind Forcing
Mean Flow Generation Continental Margin Periodic Wind Forcing
2009/1/21
The generation of an alongshore mean flow by the nonlinear interaction of forced barotropic shelf waves over a continental margin is studied using a wind-forced, f-plane model with bottom friction in ...
Mean Flow and Variabilities in the Deep Western Boundary Current
Deep Western Boundary Current Mean Flow
2009/1/21
The Deep Western Boundary Current (DWBC or Western Boundary Undercurrent) was observed for over 100 days by an L-shaped array of current meters along and across the Blake Escarpment. The measurements ...
On the Continuity of Mean Flow between the Scotian Shelf and the Middle Atlantic Bight
shelf mean flow Scotian Shelf Middle Atlantic Bight
2009/1/12
Oxygen-isotope tracer data combined with results from two linear barotropic coastal models are used to argue that the observed equatorward mean alongshelf flow in the Middle Atlantic Bight is a downst...
Near-Inertial Wave Interactions with Mean Flow and Bottom Topography near Caryn Seamount
Near-Inertial Wave Bottom Topography Mean Flow Caryn Seamount
2009/1/10
Velocity measurements near Caryn Seamount in the Sargasso Sea reveal intensified mean and near-inertial motions in the upper ocean. Embedded in a regional eastward flow is an anticyclonic eddy that ap...
Quasi-Geostrophic Topographically Generated Mean Flow over the Continental Margin
Quasi-Geostrophic Mean Flow Continental Margin
2009/1/9
Observations of oppositely directed, monthly mean alongshore currents and wind stress over the continental margin off the Pacific coast of North America motivate the theoretical examination of mean fl...
Wind Forced Wave–Mean Flow Interactions in the Equatorial Waveguide. Part I：The Kelvin Wave
equatorial current system Kelvin Wave Equatorial Waveguide
2009/1/6
A numerical model is designed to study the effects of the strong, near-surface associated with the equatorial current system on energy transmission of time-periodic equatorial waves into the deep mean...
Unstable Waves on Oceanic Fronts：Large Amplitude Behavior and Mean Flow Generation
Unstable Waves Oceanic Fronts Mean Flow Generation
2009/1/5
A primitive equation numerical model is used to study the large amplitude behavior of unstable waves on an oceanic density front, concentrating on a single wave mode corresponding to the fastest growi...
Gulf Stream Dynamics：Part I：Mean Flow Dynamics at 73°W
Mean Flow Dynamics 73°W Gulf Stream Dynamics
2009/1/4
During 1984, five current meter moorings measured velocity and temperature in the Gulf Stream anticyclonic flank at a location approximately 250 km downstream of Cape Hatteras. Here, these data are us...
Eddy-Mean Flow Interaction in the Gulf Stream at 68°W. Part II：Eddy Forcing on the Time-Mean Flow
Eliassen-Palm theory time-mean flows zonal-mean flows
2008/12/10
Data front the SYNOP 68°W current meter array show a trough pattern in the 26-month mean Gulf Stream path at 68°W and a cyclone in the mean deep flow. In order to determine whether eddies are controll...
Eliassen-Palm Flux and Eddy Potential Vorticity Flux for a Nonquasigeostrophic Time-Mean Flow
time-mean flow Eddy Potential Vorticity Flux Eliassen–Palm theory Eliassen-Palm Flux
2008/12/10
Eliassen–Palm theory is formulated for a time-mean flow in an isopycnic coordinate system. An expression is derived for the Eliassen-Palm flux E in this context. In isopycnic coordinates it is natural...
Eddy–Mean Flow Interaction in Zonal Oceanic Jet Flow along Zonal Ridge Topography
Eddy–Mean Flow Interaction Zonal Ridge Topography Zonal Oceanic Jet Flow
2008/10/24
Motivated by satellite altimeter observations of enhanced sea level variability near steep topographic slopes in the Southern Ocean, effects of topography on the spatial distribution of mesoscale eddi...
Evolution of Mean-Flow Fofonoff Gyres in Barotropic Quasigeostrophic Turbulence
Mean-Flow Fofonoff Gyres Barotropic Quasigeostrophic Turbulence
2008/7/21
Numerical experiments are performed over a wide range of parameters to show that mean flows in the form of Fofonoff gyres, characterized by a linear relationship between streamfunction and potential v...
Instability Dynamics of a Subtropical Jet and Applications to the Azores Front Current System: Eddy-Driven Mean Flow
Instability Dynamics Subtropical Jet Current System Eddy-Driven Mean Flow
2008/7/10
The Azores front is associated with an eastward flowing subtropical jet, which coincides with the northern edge of the North Atlantic subtropical gyre and forms a southern branch of the Gulf Stream. A...