Baroclinic term (RHS of Eq. (10)) in the outer disk for a short-lived model (β = 1 at t = 1000 orbits) and a long-lived vortex (β = 0.01 at t = 7150 orbits, see also Fig. B.2) with α = 10⁻⁵ and 16 cps resolution on the left and right side, respectively. The top row shows maps of the baroclinic term with the detected vortices indicated with green ellipses as obtained from the Σ fit. The bottom row shows the radial Σ profile in orange, the azimuthally averaged baroclinic term in blue and the region between its minimum and maximum shaded in gray.