Venus is completely covered by a thick cloud layer, with the cloud tops in fast retrograde rotation. Global and small scale properties of these clouds and their temporal and latitudinal variations are investigated, and the wind velocities are derived. The southern polar region is highly variable and can change dramatically on time scales as short as one day, perhaps arising from the injection of SO2 into the mesosphere.
- W. J. Markiewicz
- D. V. Titov
- P. Russo
