207 高速回転球殻中の貫入対流と木星の平均帯状流生成(セッション2)

概要

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Penetration of columnar convection into a stably stratified layer near the outer boundary in rapidly rotating spherical shells is investigated in order to consider generation mechanism of the surface zonal flow of Jupiter. It is shown that the extent of penetration is weakened as the stratification is increased, however, mean zonal flow component penetrates the layer much deeply than the columnar convective motion. The results suggest that if the surface zonal flow of Jupiter is driven by the deep columnar convection, there are two possibilities: the underlying columnar convection can penetrate the stratified layer and drives surface zonal flow directly; otherwise, columnar convection cannot penetrate the layer, but drives a large scale deep zonal flow, which is able to communicate through the stratified layer.
日本惑星科学会の論文
2001-10-06