Search
Now showing items 1-10 of 125
Vortex Generation Through Balanced Adjustment
Publisher: American Meteorological Society
Abstract: The problem of geostrophic adjustment, originally considered by C.G. Rossby, is solved in an axisymmetric geometry for a continuously stratified fluid, where the adjusted final state is in hydrostatic, gradient-wind balance. ...
Maps from the Mid-Ocean Dynamics Experiment: Part II. Potential vorticity and its Conservation
Publisher: American Meteorological Society
Abstract: Observations of float trajectories and vertical density profiles from the Mid-Ocean Dynamics Experiment are analyzed in terms of a likely equation of motion for mesoscale eddies involving the conservation of quasi-geostrophic ...
Maps from the Mid-Ocean Dynamics Experiment: Part I. Geostrophic Streamfunction
Publisher: American Meteorological Society
Abstract: From measurements made during the 1973 Mid-Ocean Dynamics Experiment in the western North Atlantic, horizontal maps of the total dynamic pressure (or, in the geostrophic approximation, streamfunction) have been constructed ...
Intermediate Models of Planetary Circulations in the Atmosphere and Ocean
Publisher: American Meteorological Society
Abstract: Large-scale extratropical motions (with dimensions comparable to, or somewhat smaller than, the planetary radius) in the atmosphere and ocean exhibit a more restricted range of phenomena than are admissible in the primitive ...
Sensitivity of the Global Ocean Circulation to Parameterizations of Mesoscale Tracer Transports
Publisher: American Meteorological Society
Abstract: The isopycnal transport parameterization of Gent and Mc Williams has been implemented in the GFDL ocean general circulation model, replacing the physically unjustifiable horizontal mixing of tracers. The effects of this ...
Intermediate Model Solutions to the Lorenz Equations: Strange Attractors and Other Phenomena
Publisher: American Meteorological Society
Abstract: The low-order, nine-component, primitive equation model of Lorenz (1980) is used as the basis for a comparative study of the quality of several intermediate models. All the models are intermediate between the primitive ...
Stochasticity and Spatial Resonance in Interdecadal Climate Fluctuations
Publisher: American Meteorological Society
Abstract: Ocean?atmosphere interaction plays a key role in climate fluctuations on interdecadal timescales. In this study, different aspects of this interaction are investigated using an idealized ocean?atmosphere model, and a ...
Quasi-Monotone Advection Schemes Based on Explicit Locally Adaptive Dissipation
Publisher: American Meteorological Society
Abstract: The authors develop and test computational methods for advection of a scalar field that also include a minimal dissipation of its variance in order to preclude the formation of false extrema. Both of these properties are ...
Topographic Ocean Gyres: A Western Boundary Slope
Publisher: American Meteorological Society
Abstract: The appropriate lateral boundary condition for an oceanic general circulation model is not yet well determined. A large-scale current is inhibited from ascending the continental slope because of the restriction of the ...