2:05 PM - 2:25 PM
[PPS04-12] Vertical Propagation of the Large Stationary Gravity Waves in the Venus Atmosphere
Keywords:Vertical propagation, gravity wave, Venus
For all simulation cases with several different thicknesses and static stabilities of a near-neutral layer around the cloud-top level, the waves with a vertical wavelength of around 30 km can propagate from near the surface to the cloud-top level, though the amplitude of the wave at the cloud-top level changes for a factor of two. For cases with an eddy diffusion coefficient much larger than the nominal value, the stationary waves are also hardly damped. It is found that the Venus atmosphere is transparent to the gravity wave with a large vertical wavelength. These results suggest that the occurrence of the stationary gravity waves depends not on the conditions under which the waves pass through the atmosphere but rather on those of wave excitation near the surface.