In situ plots for ICME-HSS interaction events at 1AU.

32 CME-HSS interaction events observed at 1 AU.

Plots showing examples of interaction scenarios when ICME is in front (left panels) of and behind (right panels) the SIR. From the top, the first panel shows the magnetic field components in GSE coordinates; the second panel shows the proton temperature (black) overplotted with the expected temperature (red) and plasma density (blue); the Third panel shows the plasma velocity (green) and plasma beta (black); the fourth panel shows the plasma entropy (black) and azimuthal flow angle (maroon). The shaded grey regions show the HSS from SIR to the end; the shaded purple region shows the start of the HSS compression region; the vertical black lines mark the start and end of MO; The vertical red line shows the start of shock/sheath; the horizontal red line in panel three marks the value one for plasma beta; the horizontal red line in panel four marks the value four for plasma entropy and horizontal black line marks zero for azimuthal flow angle.