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RISMultiple Fquilibria for Cross-Gyre Flow between Subpolar and Subtropical Gyres
Publisher: American Meteorological Society
Abstract: A simple Sverdrup-type two-layer model that allows the outcropping of isopycnals is forced by wind stress, is completed with a frictional western boundary layer, and is investigated along the zero wind-stress curl line ...
Spinup toward Communication between Large Oceanic Subpolar and Subtropical Gyres
Publisher: American Meteorological Society
Abstract: An interpretation in terms of planetary waves is proposed, which sheds light on the dynamics underlying the large-scale cross-gyre geostrophic flow recently developed in a two-layer ventilated thermocline model. The ...
A Ventilated Middepth Circulation Model for the Eastern North Atlantic
Publisher: American Meteorological Society
Abstract: A mechanism is proposed, based on the assumption of ventilation, to explain the middepth northward flow observed in the North Atlantic. The main feature of the solution is that the outcropping line of an intermediate layer ...
The Wind-driven Circulation: Quasi-geostrophic Simulations and Theory for Nonsymmetric Winds
Publisher: American Meteorological Society
Abstract: Simulations of the wind-driven Ocean circulation, carded out with an eddy-resolving quasi-geostrophic numerical model, and symmetric, idealized wind forcing have a large-scale structure that is predicted wen by the steady ...
Three-Dimensional Dynamics of the Subsurface Countercurrents and Equatorial Thermostad. Part I: Formulation of the Problem and Generic Properties
Publisher: American Meteorological Society
Abstract: A fully three-dimensional primitive equation simulation is performed to ?reunite? the local equatorial dynamics of the subsurface countercurrents (SCCs) and thermostad with the large-scale tropical ventilated ocean dynamics. ...
Three-Dimensional Dynamics of the Subsurface Countercurrents and Equatorial Thermostad. Part II: Influence of the Large-Scale Ventilation and of Equatorial Winds
Publisher: American Meteorological Society
Abstract: Sensitivity tests are performed to assess the respective influences of the large-scale ventilation and of the near-equatorial winds on the dynamics of the the subsurface countercurrents (SCCs) and thermostad. They show ...
Comments on “A New Theory for the Generation of the Equatorial Subsurface Countercurrents”
Publisher: American Meteorological Society
Abstract: From a numerical simulation of the Atlantic Ocean, Jochum and Malanotte-Rizzoli provide evidence that the equatorial subsurface countercurrents can be triggered by tropical instability waves through eddy?mean flow interactions ...
Tracer Stirring around a Meddy: The Formation of Layering
Publisher: American Meteorological Society
Abstract: he dynamics of the formation of layering surrounding meddy-like vortex lenses is investigated using primitive equation (PE), quasigeostrophic (QG), and tracer advection models. Recent in situ data inside a meddy confirmed ...
Equatorial Zonal Jet Formation through the Barotropic Instability of Low-Frequency Mixed Rossby–Gravity Waves, Equilibration by Inertial Instability, and Transition to Superrotation
Publisher: American Meteorological Society
Abstract: Depth-dependent barotropic instability of short mixed Rossby?gravity (MRG) waves is proposed as a mechanism for the formation of equatorial zonal jets. High-resolution primitive equation simulations show that a single MRG ...
An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific
Publisher: American Meteorological Society
Abstract: Antarctic Intermediate Water (AAIW) occupies the intermediate horizon of most of the world oceans. Formed in the Southern Ocean, it is characterized by a relative salinity minimum. With a new, denser in situ National ...