Average temperature (top) and density (middle) profiles, as well as rms vertical velocity (bottom) for models of different resolution. In each panel the difference to the highest resolution model (Δz = 7.7 km) is shown. Shading corresponds to the standard deviation between 9 different snapshots of the high resolution model. In the top panel we include the average geometrical depth scale of models A, B and D (from bottom to top) as vertical grey bars.