1. Geophysical Institute, and Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway
2. Finnish Meteorological Institute, Helsinki, Finland
3. Geophysical Institute, University of Bergen, Bergen, Norway, and Finnish Meteorological Institute, Helsinki, Finland
4. Advanced Radar Research Center, School of Meteorology, and Center for Autonomous Sensing and Sampling, University of Oklahoma, Norman, Oklahoma
5. Meteorology and Air Quality Section, Wageningen University, Wageningen, Netherlands
6. Norwegian Research Centre (NORCE), and Bjerknes Centre for Climate Research, Bergen, Norway
7. Institute of Meteorology and Climatology, Leibniz University Hannover, Hannover, Germany, and Geophysical Institute, University of Bergen, Bergen, Norway
8. The University Centre in Svalbard, Longyearbyen, Norway, and Geophysical Institute, University of Bergen, Bergen, Norway
9. Geophysical Institute, and Bjerknes Centre for Climate Research, University of Bergen, Bergen, and Norwegian Meteorological Institute, Oslo, Norway
10. Geophysical Institute, University of Bergen, Bergen, Norway
11. Finnish Meteorological Institute, Helsinki, Finland, and Obukhov Institute for Atmospheric Physics, Moscow, Russia
12. School of Meteorology, and Center for Autonomous Sensing and Sampling, University of Oklahoma, Norman, Oklahoma
13. Center for Applied Geoscience, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
14. Institute of Meteorology and Climatology, Leibniz University Hannover, Hannover, Germany
15. Ostwestfalen-Lippe University of Applied Sciences and Arts, Höxter, Germany