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Geostrophic Turbulence
Publisher: American Meteorological Society
Abstract: A theory is presented for the spectra of horizontal velocity and temperature at high wavenumbers in three-dimensional quasi-geostrophic flow. The theory predicts a minus third power dependence on both the horizontal and ...
On the Growth of the Hurricane Depression
Publisher: American Meteorological Society
Abstract: Why do cyclones form in a conditionally unstable tropical atmosphere whose vertical thermal structure is apparently more favorable to small-scale cumulus convection than to convective circulations of tropical cyclone scale? ...
Structure of Wind-Driven Equatorial Currents in Homogeneous Oceans
Publisher: American Meteorological Society
Abstract: The properties of wind-driven equatorial currents in homogeneous oceans are investigated for variable wind stresses and variable eddy viscosities. In the case of a uniform westward stress, the calculated cross-stream and ...
Form-Drag Instability, Multiple Equilibria and Propagating Planetary Waves in Baroclinic, Orographically Forced, Planetary Wave Systems
Publisher: American Meteorological Society
Abstract: A two-layer baroclinic model is used to study the planetary-scale motions of a thermally driven atmosphere in the presence of topography, and in doing so to extend previous results obtained with a barotropic model. Highly ...
Multiple Flow Equilibria in the Atmosphere and Blocking
Publisher: American Meteorological Society
Abstract: A barotropic channel model is used to study the planetary-scale motions of an atmosphere whose zonal flow is externally driven. Perturbations are induced by topography and by d barotropic analogue of thermal driving. The ...
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