1. Forschungszentrum Jülich GmbH (FZJ), Institute of Energy and Climate Research: Troposphere (IEK-8), Jülich 52428, Germany
2. Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen 82234, Germany
3. Faculty of Aerospace Engineering, Delft University of Technology, Delft 2600 AA, The Netherlands
4. Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research, Karlsruhe 76131, Germany
5. Institute for Atmospheric and Environmental Research, University of Wuppertal, Wuppertal 42119, Germany