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RISSouthern Hemisphere Westerly Wind Control over the Ocean's Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: The effect of the position of the Southern Hemisphere subpolar westerly winds (SWWs) on the thermohaline circulation (THC) of the World Ocean is examined. The latitudes of zero wind stress curl position exert a strong ...
Atmospheric Moisture Transport Moderates Climatic Response to the Opening of Drake Passage
Publisher: American Meteorological Society
Abstract: The absence of the Drake Passage (DP) gateway in coupled models generally leads to vigorous Antarctic bottom water (AABW) formation, Antarctic warming, and the absence of North Atlantic deep-water (NADW) formation. Here ...
The Control of Polar Haloclines by Along-Isopycnal Diffusion in Climate Models
Publisher: American Meteorological Society
Abstract: Increasing the value of along-isopycnal diffusivity in a coupled model is shown to lead to enhanced stability of North Atlantic Deep Water (NADW) formation with respect to freshwater (FW) perturbations. This is because the ...
Precise Calculations of the Existence of Multiple AMOC Equilibria in Coupled Climate Models. Part II: Transient Behavior
Publisher: American Meteorological Society
Abstract: n Part I of this paper an evolution equation for the Atlantic salinity and the reverse cell strength in the North Atlantic Deep Water (NADW) OFF state was formulated. Here, an analytical solution to this equation is used ...
CORRIGENDUM
Publisher: American Meteorological Society
Role of the Drake Passage in Controlling the Stability of the Ocean’s Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: The role of a Southern Ocean gateway in permitting multiple equilibria of the global ocean thermohaline circulation is examined. In particular, necessary conditions for the existence of multiple equilibria are studied with ...
Sensitivity of the Atlantic Thermohaline Circulation and Its Stability to Basin-Scale Variations in Vertical Mixing
Publisher: American Meteorological Society
Abstract: This study shows that a reduction in vertical mixing applied inside the Atlantic basin can drastically increase North Atlantic Deep Water (NADW) stability with respect to freshwater perturbations applied to the North ...
Effect of the Drake Passage Throughflow on Global Climate
Publisher: American Meteorological Society
Abstract: The role of the Southern Ocean in global climate is examined using three simulations with a coupled model employing geometries different only at the location of Drake Passage (DP). The results of three main experiments are ...
Reduced Stability of the Atlantic Meridional Overturning Circulation due to Wind Stress Feedback during Glacial Times
Publisher: American Meteorological Society
Abstract: A previous study by Mikolajewicz suggested that the wind stress feedback stabilizes the Atlantic thermohaline circulation. This result was obtained under modern climate conditions, for which the presence of the massive ...
Stability of Antarctic Bottom Water Formation to Freshwater Fluxes and Implications for Global Climate
Publisher: American Meteorological Society
Abstract: The stability of Antarctic Bottom Water (AABW) to freshwater (FW) perturbations is investigated in a coupled climate model of intermediate complexity. It is found that AABW is stable to surface freshwater fluxes greater ...