Superrotation of more than 100 m s-1 is formed at 60 km in a Venus-like general circulation model (Venus-like GCM) driven by a three-dimensional (3D) heating with a 117-day period. Meridional circulation efficiently pumps up angular momentum from the surface to the cloud-top level (65-70 km) as expected from the Gierasch mechanism. Thermally-forced or enhanced waves with zonal wavenumbers of 1 and 2 produce equatorward eddy momentum fluxes, being possible candidates for the equatorward momentum flux caused by large horizontal diffusion in the Gierasch mechanism.
|Number of pages||6|
|Journal||Theoretical and Applied Mechanics Japan|
|Publication status||Published - Dec 1 2002|
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanics of Materials