Blomker, DirkDuan, JinqiaoWanner, Thomas2007-08-162007-08-162001-07https://hdl.handle.net/11299/3670Enstrophy 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.