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Thermal Convection in a Rotating Fluid Annulus. Part I. The Basic Axisymmetric Flow
Publisher: American Meteorological Society
Abstract: The thermally driven motion of a fluid contained in a rotating annulus is investigated by numerical integration of the Navier-Stokes equations as an initial value problem. Four distinct regimes of hydro-dynamical flow can ...
Geostrophic Regimes on a Sphere and a Beta Plane
Publisher: American Meteorological Society
Abstract: A general geostrophic equation is derived for a shallow layer of fluid on a sphere. This equation encompasses the planetary, intermediate, and quasi-forms of geostrophy and produces their equations directly when the ...
Thermal Convection in a Rotating Fluid Annulus: Part 2. Classes of Axisymmetric Flow
Publisher: American Meteorological Society
Abstract: This paper presents the solutions obtained for various axisymmetric thermal convection flows in a rotating annulus. Initially, a solution is obtained for a flow whose interior structure has been observed in detail. A ...
The Field Distributions and Balances in a Baroclinic Annulus Wave
Publisher: American Meteorological Society
Abstract: The detailed structure of a steady wave occurring in a rotating annulus of square cross-section and having a free surface is presented. The field distributions are obtained by numerical integration of the three-dimensional ...
Thermal Convection in a Rotating Fluid Annulus: Part 3. Suppression of the Frictional Constraint on Lateral Boundaries
Publisher: American Meteorological Society
Abstract: In certain rotating fluid systems such as the atmosphere, the flow must maintain a zero net torque on the horizontal surface. The character of such flows is sought through numerical integration of the Navier-Stokes equations. ...
Friction Term Formulation and Convective Instability in a Shallow Atmosphere
Publisher: American Meteorological Society
Abstract: The form of the friction terms for a shallow layer of fluid on a sphere is discussed for isotropic and transversely-isotropic fluids. We then examine the nature of convection in a transversely-isotropic fluid and find that ...
Planetary Circulations: 1. Barotropic Representation of Jovian and Terrestrial Turbulence
Publisher: American Meteorological Society
Abstract: We seek the formative processes of the planetary circulations of Jupiter and Saturn. The study concentrates on examining whether processes known to control the terrestrial circulation, namely, two-dimensional turbulence ...
Planetary Circulations: 3. The Terrestrial Quasi-Geostrophic Regime
Publisher: American Meteorological Society
Abstract: The characteristics of the two-level quasi-geostrophic model are evaluated for a wide range of parameters in the terrestrial domain. Flow form is determined primarily by ? (the Coriolis gradient) and by τD, (the time scale ...
Planetary Circulations: 2. The Jovian Quasi-Geostrophic Regime
Publisher: American Meteorological Society
Abstract: The characteristics of the two-level quasi-geostrophic model are evaluated for a wide range of parameter values in the Jovian domain. The results support the hypothesis that baroclinic instability energizes the circulation ...
Geostrophic Regimes, Intermediate Solitary Vortices and Jovian Eddies
Publisher: American Meteorological Society
Abstract: We examine the relevance to Jupiter's atmosphere of the solitary vortices favored at scales intermediate to those of the quasi-geostrophic (QG) and planetary-geostrophic motions. Horizontal divergence plays a crucial role ...
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