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Boundary-Forced Nonlinear Planetary Radiation
Publisher: American Meteorological Society
Abstract: In recent years there has been renewed interest in the Gulf Stream system and its interaction with the mesoscale oceanic eddy field. An important question, not yet adequately addressed, concern the possible generation ...
Coherent Structures in a Baroclinic Atmosphere. Part III: Block Formation and Eddy Forcing
Publisher: American Meteorological Society
Abstract: In this paper we exploit a nonlinear baroclinic theory of atmospheric Rossby waves superimposed on westerly winds with meridional and vertical shear which was proposed in two earlier studies, Parts I and II. In Part I, ...
Nonlinear Stationary Rossby Waves on Nonuniform Zonal Winds and Atmospheric Blocking. Part I: The Analytical Theory
Publisher: American Meteorological Society
Abstract: Many recent theoretical and observational studies have been devoted to the understanding of atmospheric patterns that persist beyond the synoptic time scale. These patterns are known as blocking events. Properties of ...
Influence of the Meridional Overturning Circulation on Tropical–Subtropical Pathways
Publisher: American Meteorological Society
Abstract: An ocean GCM is used for idealized studies of the Atlantic circulation in a square basin. The subtropical, the tropical, and the equatorial gyres are produced by forcing the model with a wind stress profile having only ...
Coastal Flows Driven by Alongshore Density Gradients
Publisher: American Meteorological Society
Abstract: In this note we study the effect of an alongshore density gradient in driving the near-coastal circulation and determining the direction of the alongshore flow. We revisit and extend the results obtained by Malanotte-Rizzoli ...
A New Theory for the Generation of the Equatorial Subsurface Countercurrents
Publisher: American Meteorological Society
Abstract: An idealized numerical simulation of the tropical Atlantic Ocean is used to study the dynamics of an Atlantic subsurface countercurrent, the South Equatorial Undercurrent (SEUC). The particular structure of the SEUC between ...
Reply
Publisher: American Meteorological Society
Abstract: A previous study on the generation of equatorial subsurface countercurrents is revisited to clarify some details of the assumptions that are needed to derive the momentum budget. The opportunity is also used to put the ...
Inverse Modeling of Seasonal Variations in the North Atlantic Ocean
Publisher: American Meteorological Society
Abstract: An ocean general circulation model (OGCM) of the North Atlantic Ocean is fitted to the monthly averaged climatological temperatures and salinities of Levitus using the adjoint method, representing a significant step forward ...
Coherent Structures in a Baroclinic Atmosphere. Part IV: A Comparison between Theory and Data
Publisher: American Meteorological Society
Abstract: In a series of previous papers, a local theory was formulated to model the persistent atmospheric patterns known as blocking events. The adopted model was the fully nonlinear, baroclinic quasi-geostrophic potential vorticity ...
Data Constraints Applied to Models of the Ocean General Circulation. Part I: The Steady Case
Publisher: American Meteorological Society
Abstract: In this work we take a first step in the process of assimilating data into models of the ocean general circulation. The goals is not prediction but rather understanding how the data insertion process affects, and is affected ...