Temporal evolution of the shock front in event 3 at a fixed geometrical height of  ~100 km above the average log τ₅₀₀₀ = 0 level. From the bottom up, the curves represent time samples at 25 s intervals. The scale on the vertical axis is for snapshot S1 (thick curve). The range of the horizontal axis is same as in Fig. 6. Upper left panel: temperature deviation from the horizontal mean; upper right: horizontal velocity (positive along x); middle left: pressure deviation from the horizontal mean; middle right: entropy deviation from the horizontal mean in units of the universal gas constant; lower left: log τ₅₀₀₀; lower right: density deviation from the horizontal mean.