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“Inertial” Oscillations and the β-Plane Approximation(s)
Publisher: American Meteorological Society
Abstract: The general solution for the motion of a particle in the frictionless surface of a rotating planet is reviewed and a physical explanation of asymptotic solutions is provided. In the rotating frame at low energies there is ...
Toward a Physical Explanation of the Seasonal Dynamics and Thermodynamicsof the Gulf of California
Publisher: American Meteorological Society
Abstract: The annual component of the horizontal heat flux Fx is calculated from the temperature advection by the geostrophic velocity. This estimate of Fx is in good agreement, in amplitude and phase and as a function of the distance ...
Evaluation of Vertical Structure Functions for the Analysis of Oceanic Data
Publisher: American Meteorological Society
Abstract: It is feasible to construct vertical structure functions for the analysis of oceanic data, from the gravest scales sustained by the water column to fine-structure scales. The short scales need not be treated separately by ...
Nonlinear Wave–Wave Interactions in a One-Layer Reduced-Gravity Model on the Equatorial β Plane
Publisher: American Meteorological Society
Abstract: A one-layer reduced-gravity model in the unbounded equatorial ? plane is the simplest way to study nonlinear effects in a tropical ocean. The free evolution of the system is constrained by the existence of several conserved ...
Effects of the Earth’s Curvature on the Dynamics of Isolated Objects. Part I: The Disk
Publisher: American Meteorological Society
Abstract: A disk over the frictionless surface of the earth shows an interaction between the center of mass and internal motions. At low energies, the former is an ?inertial oscillation? superimposed to a uniform zonal drift c and ...
Effects of the Earth’s Curvature on the Dynamics of Isolated Objects. Part II: The Uniformly Translating Vortex
Publisher: American Meteorological Society
Abstract: Zonally propagating solutions of the primitive equations for an isolated volume of fluid are considered. In a moving stereographic projection (from the antipode of the center of mass) geometric distortion enters at O(R?2), ...
Weak Interactions of Equatorial Waves in a One-Layer Model. Part II: Applications
Publisher: American Meteorological Society
Abstract: There are pairs of resonant triads with two common components. Analytic solutions describing the evolution of a system with such a double resonant triad are presented and compared with the resonant three-wave problem. Both ...
Weak Interactions of Equatorial Waves in a One-Layer Model. Part I: General Properties
Publisher: American Meteorological Society
Abstract: Dispersive equatorial waves are labeled by the zonal slowness s, the meridional quantum number n and the vertical separation constant c. The slowness (reciprocal of phase speed) is a variable more useful than the wavenumber ...
Evolution of an Unstable Elongated Eddy
Publisher: American Meteorological Society
Abstract: Elongaged anticyclonic vortices are modeled by the reduced gravity equations: a finite volume of water on top of an inert heavier fluid, with allowance for horizontal divergence and Coriolis effects. Stable eddies experience ...
Seasonal Gyres in the Northern Gulf of California
Publisher: American Meteorological Society
Abstract: The circulation pattern in the northern Gulf of California, based on drifting buoys and hydrographic observations, can be explained using the results of a linear two-layer primitive equations model forced, at the annual ...