Alice Keinert¹, Dominik Spannagel², Alexei A Kiselev² and Thomas Leisner^1,3, (1)Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research - Atmospheric Aerosol Research, Karlsruhe, Germany, (2)Karlsruhe Institute of Technology - KIT, Institute of Meteorology and Climate Research - Atmospheric Aerosol Research, Karlsruhe, Germany, (3)University of Heidelberg, Institute of Environmental Physics, Heidelberg, Germany