Temporal evolution of the physical parameters on the (x, z) plane for the slice indicated by the white line (y = y₁) in the upper panels of Fig. 11. From top to bottom: temperature difference with respect to the box average at each height, v_x(x, y₁, z), v_z(x, y₁, z), B_x(x, y₁, z), B_z(x, y₁, z). The arrow field represents the direction of the velocity in the second and third rows and the magnetic field in the fourth and fifth rows, on the (x, z) plane. The length of the arrows is proportional to and , respectively.