Enstrophy Dynamics of Stochastically Forced Large-Scale Geophysical Flows
D. Blömker, Jinqiao Duan, T. Wanner
Abstract
Enstrophy is an averaged measure of fluid vorticity. This quantity is particularly important in 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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