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arXiv math/0108086math.APcond-mat.stat-mechmath-phmath.DSmath.MPmath.PRnlin.CDphysics.ao-phphysics.flu-dyn

Enstrophy Dynamics of Stochastically Forced Large-Scale Geophysical Flows

D. Blömker, Jinqiao Duan, T. Wanner

英文摘要:

Enstrophy is an averaged measure of fluid vorticity. This quantity is particularly important in {\em rotating} geophysical flows. We investigate the dynamical evolution of enstrophy for large-scale quasi-geostrophic flows under random wind forcing. We obtain upper bounds on the enstrophy, as well as results establishing its Hölder continuity and describing the small-time asymptotics.

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