Temperature difference evolution of the point on the x = 0 plane at the location of the maximum gradient of the Alfvén speed at z = 26.60 Mm for the simulation with continuous driver (black continuous line), compared to the same temperature evolution for the simulation with single pulse (red line). The overplotted grid is horizontally spaced by 1P and vertically spaced by the final temperature increase in the single-pulse simulation. The blue straight line would be the temperature evolution if the same initial temperature increase is gained at each pulse.