Nesse Tyssøy, H., Sinnhuber, M., Asikainen, T., Bender, S., Clilverd, M. A., Funke, B., van de Kamp, M., Pettit, J., Randall, C., Reddmann, T., Rodger, C. J., Rozanov, E., Smith-Johnsen, C., Sukhodolov, T., Verronen, P. T., Wissing, J. M., and Yakovchuk, O., HEPPA III intercomparison experiment on electron precipitation impacts: Estimated ionization rates during a geomagnetic active period in April 2010, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-5287