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Abstract: The onset of penetrative convection in a rotating, gravitationally unstable spherical fluid layer bounded above or below by a stable spherical corotating layer is investigated. Rapid rotation and spherical geometry produce ...

Abstract: A numerical model of planetary-scale waves in Venus? atmosphere is used to simulate observed wave-like cloud features such as the dark horizontal Y. The model is based on the linearized primitive equations. Observed ...

Abstract: The amplification and attenuation of small-scale acoustic-gravity waves in Venus's atmosphere is studied with a plane-wave model that realistically simulates height variations in structure and zonal circulation. Forcing ...

Abstract: It has been proposed that the observed 4-day retrograde rotation of the Venus atmosphere is a zonal motion of at least the upper atmosphere driven by periodic solar thermal forcing. We have assessed the relative importance ...

Abstract: A linearized planetary scale wave model is used to investigate the effects of thermal and mechanical damping on atmospheric tides. When the damping rate ? is comparable to the frequency of solar diurnal forcing &Omega ...

Abstract: This paper is the first of a two-part study that investigates internal gravity wave generation by convection in the lower atmosphere of Venus. A two-dimensional, nonlinear, fully compressible model of a perfect gas is ...

Abstract: This paper is the second of a two-part study that numerically investigates internal gravity wave generation by convection in the lower atmosphere of Venus. Part I of this study considers gravity wave generation and propagation ...

Abstract: A two-dimensional, nonlinear, fully compressible model of a perfect gas is used to simulate cloud-level penetrative convection in the Venus atmosphere from 40 to 60 km altitude. Three cases with different amounts of solar ...

Abstract: Pioneer Venus radio occultation data for four seasons between December 1978 and October 1981 are used to construct meridional cross sections of temperature and zonal wind velocity for the middle atmosphere of Venus in the ...