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| 概要 |
Time evolution of enstrophy inside coherent vortex region of the turbulence described by quasi-geostrophic equation (also called Charney-Hasagawa-Mima equation as an equivalence) is investigated. Ther...e are two expressions for the enstrophy, and these expressions give different values if the amounts inside the coherent vortex region are considered, and the difference between them becomes large as the coherent vortices grow with time. However, when the scale becomes large enough compared with the Rossby’s radius of deformation, the exponents expressing the time dependence approach the same value. The difference of the exponents found by Watanabe et al. (1998) is the behavior at the transient state.続きを見る
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Mendeley出力
