Dynamics of the maximum pulse amplitude for density and velocity compared with the static analytical solution of the pulse amplitude. (a) Dynamics obtained with different initial disturbance characteristic widths σ. (b) Dynamics obtained with different initial disturbance density amplitude A_ρ. (c) Dynamics obtained with different initial disturbance pressure to density amplitude ratio A_P/A_ρ in two characteristic cases: A_ρ = 0.1 (low amplitude) and A_ρ = 1.0 (high amplitude).