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Separation of an Inertial Boundary Current from a Curved Coastline
Publisher: American Meteorological Society
Abstract: A two-layer model is used to examine the separation of an inertial boundary current from a curved coastline and its subsequent path as a free jet. To isolate the inertial effect, the boundary current is confined to the ...
Stability of the Atlantic Overturning Circulation: Competition between Bering Strait Freshwater Flux and Agulhas Heat and Salt Sources
Publisher: American Meteorological Society
Abstract: The role played by interocean fluxes of buoyancy in stabilizing the present-day overturning circulation of the Atlantic Ocean is examined. A 2D model of the Atlantic overturning circulation is used, in which the interocean ...
On the Physics of the Agulhas Current: Steady Retroflection Regimes
Publisher: American Meteorological Society
Abstract: From previous model studies, it has become clear that several physical mechanisms may be at work in the retroflection of the Agulhas Current. Here, a systematic study of steady barotropic flows connecting the Indian Ocean ...
A New Regime of the Agulhas Current Retroflection: Turbulent Choking of Indian–Atlantic leakage
Publisher: American Meteorological Society
Abstract: n analysis of the Indian Ocean circulation and the Agulhas Current retroflection is carried out using a primitive equation model with simplified coastline and flat bottom. Four configurations with 0.25° and 0.1° horizontal ...
Generation and Evolution of Natal Pulses: Solitary Meanders in the Agulhas Current
Publisher: American Meteorological Society
Abstract: Solitary meanders of the Agulhas Current, so-called Natal pulses, may play an important role in the overall dynamics of this current system. Several hypotheses concerning the triggering of these pulses are tested using sea ...
Impact of Interbasin Exchange on the Atlantic Overturning Circulation
Publisher: American Meteorological Society
Abstract: The thermohaline exchange between the Atlantic and the Southern Ocean is analyzed, using a dataset based on WOCE hydrographic data. It is shown that the salt and heat transports brought about by the South Atlantic subtropical ...
Stability of Multilayer Ocean Vortices: A Parameter Study Including Realistic Gulf Stream and Agulhas Rings
Publisher: American Meteorological Society
Abstract: Ocean rings, when isolated from major ocean currents, can have life spans on the order of years. This study focuses on the stability of such isolated ocean rings. Assuming axisymmetric basic-state profiles, the linear ...