Resulting vertical component of the magnetic field (upper panels) and of the distribution of β_mag (middle panels) for disk model with β_mid = 10⁴ (left panel) and β_mid = 10⁶ (right panel). We note that β_mag = β_mid at all radii r at z = 0. The contour with β_mag = 1 defines the disk surface. The sound speed structures are shown in the lower panels. The red contours in the lower panels show v_turb∕c_s.