Perspective view of model A-Pr10-N5 (polar spot case) from a northern latitude. a) radial velocity near the outer boundary and the magnetic field lines above the shell, upward continued by assuming a potential field. In b) the surface showing the radial flow in a) is cut and only the eastern hemisphere in shown to visualize the interior magnetic field lines associated with the northern large dark spot (visible as a white patch in a)). The isosurface of the axial vorticity ω_z (in green, shown in a limited domain for clarity) is also illustrated in b).