Vertical cross-section along the height axis z through the same model snapshot as in Figs. 1 and 2 at the horizontal position [ x,y ] = [ 3.31 × 10⁹ m,0.58 × 10⁹ m ]. The following physical quantities are displayed: a) gas temperature, b) vertical velocity, and c) Mach number. The dotted vertical lines mark the positions in two major shock fronts, where the shocks meet downfalling gas.