MURAM simulation snapshot. (a) Vertical cut through numerical box showing the modulus of the magnetic field strength in logarithmic scale, clipped between 10 and 2500 G, with the colour bar in logarithmic scale. (b) Horizontal cut at mean temperature of 5560 K of vertical velocity in km s⁻¹ with positive values pointing upwards (being blue-shifted to observer). (c) Same as panel b, but for the vertical component of the magnetic field strength in kG.