Radial velocity and number density at Earth vs. time. Simulation run is performed with the synthetic wind from Sect. 3.1.1 and the CME parameters as given in Sect. 3.2. As a reference, results for low, middle and high resolution are given by the dashed lines in yellow, red and darkblue. Solution AMR runs with 2 and 3 levels are given by the orange and blue curves, respectively. The x-axis corresponds to the days passed since the end of the relaxation phase (14 days into the simulation). We note that compared to previous figures, we have zoomed in to show days 1 through 7 only.