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RISInertial Resonance Induced by an Oceanic Jet
Publisher: American Meteorological Society
Abstract: The dynamics of the mixed layer in the presence of an embedded geostrophic jet has been investigated using a simple 1½-layer model and a two-dimensional primitive equation model. The jet vorticity induces a spatial variability ...
Multiple Zonal Jets in a Quasigeostrophic Model of the Antarctic Circumpolar Current
Publisher: American Meteorological Society
Abstract: The presence of multiple zonal fronts in the Antarctic Circumpolar Current (ACC), a phenomenon described as zonation, has been confirmed by many observations suggesting that the fronts are circumpolar in extent. In the ...
Topographic Influences on Wind-Driven, Stratified Flow in a β-Plane Channel: An Idealized Model for the Antarctic Circumpolar Current
Publisher: American Meteorological Society
Abstract: Topographic influences are examined in an eddy-resolving model of oceanic channel flow forced by steady zonal winds. With small explicit lateral friction, transient eddies generated by the baroclinic instability of the ...
The North Atlantic eddy heat transport and its relation with the vertical tilting of the Gulf Stream axis
Publisher: American Meteorological Society
Abstract: orrelations between temperature and velocity fluctuations are a significant contribution to the North Atlantic meridional heat transport, especially at the northern boundary of the subtropical gyre. In satellite observations ...
Parameterization of Quasigeostrophic Eddies in Primitive Equation Ocean Models
Publisher: American Meteorological Society
Abstract: A parameterization of mesoscale eddy fluxes in the ocean should be consistent with the fact that the ocean interior is nearly adiabatic. Gent and McWilliams have described a framework in which this can be approximated in ...
A Kinetic Energy Budget and Internal Instabilities in the Fine Resolution Antarctic Model
Publisher: American Meteorological Society
Abstract: An energy analysis of the Fine Resolution Antarctic Model (FRAM) reveals the instability processes in the model. The main source of time-mean kinetic energy is the wind stress and the main sink is transfer to mean potential ...
Diagnosing the Annual Cycle of the Equatorial Undercurrent in the Atlantic Ocean from a General Circulation Model
Publisher: American Meteorological Society
Abstract: Ten-year-long output series from a general circulation model forced by daily realistic winds are used to analyze the annual cycle of the Equatorial Undercurrent (EUC) in the Atlantic Ocean. Two well-defined transport maxima ...
The Origin of Deep Zonal Flows in the Brazil Basin
Publisher: American Meteorological Society
Abstract: Recent data from a deployment of Lagrangian floats in the Brazil Basin of the South Atlantic reveal a swift western boundary current and predominantly zonal flow in the interior at a depth of about 2500 m. Dynamical ...
Response of the Southern Ocean to the Southern Annular Mode: Interannual Variability and Multidecadal Trend
Publisher: American Meteorological Society
Abstract: The authors evaluate the response of the Southern Ocean to the variability and multidecadal trend of the southern annular mode (SAM) from 1972 to 2001 in a global eddy-permitting model of the DRAKKAR project. The transport ...