SELF-ORGANIZATION INSTABILITY IN STRONG ROSSBY-WAVE TURBULENCE

This paper studies the initial stage of generation of large-scale stru ctures by small-scale strong Rossby-wave turbulence. It is shown that the turbulence may maintain a large-scale regular vortex structure in a mean flow. The corresponding ''self-organization instability'' growt h rate is shown to have the form of negative viscosity. Possible appli cations in the theoretical study of large-scale vortices in rotating s pace systems are also discussed.