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RISKinematics of the Pacific Equatorial Undercurrent: An Eulerian and Lagrangian Approach from GCM Results
Publisher: American Meteorological Society
Abstract: Three-dimensional monthly velocity fields from an ocean general circulation model are used to study the annual mean mass balance of the Pacific Equatorial Undercurrent (EUC). Eulerian diagnostics are used to evaluate the ...
Variability of the Tropical Atlantic Ocean Simulated by a General Circulation Model with Two Different Mixed-Layer Physics
Publisher: American Meteorological Society
Abstract: The embedment of a 1.5 turbulence closure model in an ocean general circulation model of the equatorial Atlantic is presented. The eddy viscosity and diffusivity involved in the vertical mixing are defined as the product ...
On the Dynamics of the Slope Current System along the West European Margin. Part I: Analytical Calculations and Numerical Simulations with Steady-State Forcing
Publisher: American Meteorological Society
Abstract: The dynamics of the baroclinic slope current system along the western European margin in the Bay of Biscay and along the northern Iberian Peninsula are investigated in two different models, one analytical and one numerical. ...
Estimating the Effect of Stochastic Wind Stress Forcing on ENSO Irregularity
Publisher: American Meteorological Society
Abstract: One open question in El Niño?Southern Oscillation (ENSO) simulation and predictability is the role of random forcing by atmospheric variability with short correlation times, on coupled variability with interannual timescales. ...
On the Dynamics of the Slope Current System along the West European Margin. Part II: Analytical Calculations and Numerical Simulations with Seasonal Forcing
Publisher: American Meteorological Society
Abstract: The seasonality of the baroclinic slope current system along the western European margin in the Bay of Biscay and along the northern Iberian Peninsula is investigated in a joint analysis of an analytical model and numerical ...
The Global Conveyor Belt from a Southern Ocean Perspective
Publisher: American Meteorological Society
Abstract: Recent studies have proposed the Southern Ocean as the site of large water-mass transformations; other studies propose that this basin is among the main drivers for North Atlantic Deep Water (NADW) circulation. A modeling ...
The Role of Southern Ocean Surface Forcings and Mixing in the Global Conveyor
Publisher: American Meteorological Society
Abstract: Despite the renewed interest in the Southern Ocean, there are yet many unknowns because of the scarcity of measurements and the complexity of the thermohaline circulation. Hence the authors present here the analysis of the ...
Diagnosing and Picturing the North Atlantic Segment of the Global Conveyor Belt by Means of an Ocean General Circulation Model
Publisher: American Meteorological Society
Abstract: The monthly mean velocity, salinity, and temperature fields of a numerical simulation of the World Ocean climatological circulation are used to study the intensity and pathways associated with the meridional overturning ...
Warm Water Paths in the Equatorial Atlantic as Diagnosed with a General Circulation Model
Publisher: American Meteorological Society
Abstract: Monthly mean velocity fields from a global ocean general circulation model are used to study the main circulation patterns within the upper 1200 m of the equatorial Atlantic. Some recently developed Lagrangian techniques ...
Water Mass Export from Drake Passage to the Atlantic, Indian, and Pacific Oceans: A Lagrangian Model Analysis
Publisher: American Meteorological Society
Abstract: The northward export of intermediate water from Drake Passage is investigated in two global ocean general circulation models (GCMs) by means of quantitative particle tracing diagnostics. This study shows that a total of ...