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RISOn the Path of the Gulf Stream and the Atlantic Meridional Overturning Circulation
Publisher: American Meteorological Society
Abstract: The Atlantic meridional overturning circulation (AMOC) simulated in various ocean-only and coupled atmosphere?ocean numerical models often varies in time because of either forced or internal variability. The path of the ...
The Role of Bottom Vortex Stretching on the Path of the North Atlantic Western Boundary Current and on the Northern Recirculation Gyre
Publisher: American Meteorological Society
Abstract: The mechanisms affecting the path of the depth-integrated North Atlantic western boundary current and the formation of the northern recirculation gyre are investigated using a hierarchy of models, namely, a robust diagnostic ...
Simulated Tropical Response to a Substantial Weakening of the Atlantic Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: In this study, a mechanism is demonstrated whereby a large reduction in the Atlantic thermohaline circulation (THC) can induce global-scale changes in the Tropics that are consistent with paleoevidence of the global ...
Impact of Great Salinity Anomalies on the Low-Frequency Variability of the North Atlantic Climate
Publisher: American Meteorological Society
Abstract: In this paper, it is shown that coherent large-scale low-frequency variabilities in the North Atlantic Ocean?that is, the variations of thermohaline circulation, deep western boundary current, northern recirculation gyre, ...
Decadal Thermocline Variability in the North Pacific Ocean: Two Pathwaysaround the Subtropical Gyre
Publisher: American Meteorological Society
Abstract: Yearly in situ temperature anomaly data in the North Pacific Ocean for 1961?90 have been analyzed along constant-density surfaces (isopycnals) in order to better describe and understand decadal thermocline variability in ...
Interannual Variability of the Coupled Tropical Pacific Ocean–Atmosphere System Associated with the El Niño–Southern Oscillation
Publisher: American Meteorological Society
Abstract: Upper-ocean temperature and surface marine meteorological observations are used to examine interannual variability of the coupled tropical Pacific climate system. The basinwide structure and evolution of meteorological and ...
Structure and Cycle of Decadal Variability of Upper-Ocean Temperature in the North Pacific
Publisher: American Meteorological Society
Abstract: Yearly upper-ocean in situ temperature anomaly data for the period 1961?90 are analyzed to reveal spatial structure and evolution of decadal variability in the North Pacific Ocean. An EOF analysis has been performed on ...
A Modified Vertical Mixing Parameterization for Its Improved Ocean and Coupled Simulations in the Tropical Pacific
Publisher: American Meteorological Society
Abstract: Climate models suffer from significant biases over the tropical Pacific Ocean, including a too-cold cold tongue and too-warm temperature at the depth of the thermocline. The emergence of model biases can be partly attributed ...
Freshwater Flux (FWF)-Induced Oceanic Feedback in a Hybrid Coupled Model of the Tropical Pacific
Publisher: American Meteorological Society
Abstract: The impacts of freshwater flux (FWF) forcing on interannual variability in the tropical Pacific climate system are investigated using a hybrid coupled model (HCM), constructed from an oceanic general circulation model ...
Mechanisms of Thermohaline Mode Switching with Application to Warm Equable Climates
Publisher: American Meteorological Society
Abstract: A three-box model of haline and thermal mode overturning is developed to study thermohaline oscillations found in a number of ocean general circulation models and that might have occurred in warm equable paleoclimates. By ...