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Role of Eddy Forcing in the Dynamics of Multiple Zonal Jets in a Model of the North Atlantic
Publisher: American Meteorological Society
Abstract: Multiple zonal jets are observed in satellite data?based estimates of oceanic velocities, float measurements, and high-resolution numerical simulations of the ocean circulation. This study makes a step toward understanding ...
Anisotropic Material Transport by Eddies and Eddy-Driven Currents in a Model of the North Atlantic
Publisher: American Meteorological Society
Abstract: This study analyzes anisotropic properties of the material transport by eddies and eddy-driven zonal jets in a general circulation model of the North Atlantic through the analysis of Lagrangian particle trajectories. ...
Eddy Trains and Striations in Quasigeostrophic Simulations and the Ocean
Publisher: American Meteorological Society
Abstract: his study explores the relationship between coherent eddies and zonally elongated striations. The investigation involves an analysis of two baroclinic quasigeostrophic models of a zonal and double-gyre flow and a set of ...
On the Dynamics of Flows Induced by Topographic Ridges
Publisher: American Meteorological Society
Abstract: his study describes a nonlocal mechanism for the generation of oceanic alternating jets by topographic ridges. The dynamics of these jets is examined using a baroclinic quasigeostrophic model configured with an isolated ...
Properties and Origins of the Anisotropic Eddy-Induced Transport in the North Atlantic
Publisher: American Meteorological Society
Abstract: his study examines anisotropic transport properties of the eddying North Atlantic flow, using an idealized model of the double-gyre oceanic circulation and altimetry-derived velocities. The material transport by the ...
Material Transport in Oceanic Gyres. Part II: Hierarchy of Stochastic Models
Publisher: American Meteorological Society
Abstract: A hierarchy of inhomogeneous, nonstationary stochastic models of material transport is formulated, and its properties are described. The transport models from the hierarchy sequence provide progressively more skillful ...
Material Transport in Oceanic Gyres. Part III: Randomized Stochastic Models
Publisher: American Meteorological Society
Abstract: Transport models are required for simulating the subgrid-scale transport by mesoscale eddies, which are typically not resolved in coarse-grid representations of the ocean circulation. Here, a new transport model from the ...
Large-Scale, Low-Frequency Variability in Wind-Driven Ocean Gyres
Publisher: American Meteorological Society
Abstract: The authors investigate the spontaneous occurrence of large-scale, low-frequency variability of steadily forced, two-gyre, wind-driven circulations. The model dynamics is quasigeostrophic, the density stratification is ...
Quasigeostrophic Dynamics of the Western Boundary Current
Publisher: American Meteorological Society
Abstract: A local model is used to investigate the dynamics of the western boundary current in a midlatitude, wind-driven gyre. This current is important for the gyre as a whole, and its local instability is correlated with structural ...
Eddy-Induced Particle Dispersion in the Near-Surface North Atlantic
Publisher: American Meteorological Society
Abstract: his study investigates the anisotropic properties of the eddy-induced material transport in the near-surface North Atlantic from two independent datasets, one simulated from the sea surface height altimetry and one derived ...