1. 1Institute of Flight Guidance, Technische Universität Braunschweig (TU Braunschweig), Braunschweig, Germany
2. 2Leichtwerk AG, Braunschweig, Germany
3. 3messWERK GmbH, Braunschweig, Germany
4. 4Department of Experimental Aerosol and Cloud Microphysics, Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, Germany
5. 5Institute of Flight Systems, German Aerospace Center (DLR), Braunschweig, Germany
6. 6German Research Centre for Geosciences, Telegrafenberg, Potsdam, Germany
7. 7Institute of Atmospheric Physics, German Aerospace Center (DLR), Oberpfaffenhofen-Wessling, Germany