Correlation between Buoyancy Flux, Dissipation and Potential Vorticity in Rotating Stratified Turbulence

We study in this paper the correlation between buoyancy flux, efficiency of energy dissipation and linear nonlinear components potential vorticity, PV, a point-wise invariant Boussinesq equations, contrasting three identified regimes rotating stratified turbulence, namely wave-dominated, wave–eddy interactions eddy-dominated. After recalling some main novel features these flows compared to homogeneous isotropic we specifically analyze direct numerical simulations absence forcing performed on grids 10243 points, one each physical regimes. focus particular link flux amount kinetic PV. For dominated by waves, find that highest joint probability is for minimal (compared flux), low whereas eddies, occurs weak high localized also show vorticity strongly correlated with turbulent regime, corresponding intermittent events, as observed atmosphere oceans.