Snapshot of v_mag for the 203 cells per scale height (panel a) compared to the lowest resolution of 25 cells per scale height (panel b) at 200 orbits. The colored contour plot shows v_mag and the streamlines show the velocity flow pattern when applying the LIC method. The v_mag range (from 0 to 0.2 in code units) is narrowed down to highlight the low-velocity perturbations close to the midplane associated with the VSI.