| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Outline of Final Research Achievements |
We conducted a study on the Venus atmospheric superrotation with a focus on the thermal tide and mean meridional circulation (Gierasch) mechanisms. The results show that both these two mechanisms are essential to the atmospheric superrotation at the cloud levels. We have also succeeded in reproducing the realistic atmospheric structures in the Venus upper atmosphere. It has been found that (1) the active baroclinic instability waves are excited at the lower cloud levels with lower static stability, and the so-called Rossby waves are explained by the baroclinic instability waves; (2) the cold collar, which is a cold latitudinal band surrounding the warm polar vortex at the cloud top levels, are successfully reproduced in the GCM results, and the mean meridional circulation induced by the thermal tide is quite important for the generation of the cold collar.
|
