1. POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy
2. GEMMA Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy
3. Aerosol d.o.o., Kamniška 41, SI-1000 Ljubljana, Slovenia
4. Department of Condensed Matter Physics, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
5. Remote Sensing of Environmental Dynamics Lab., Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy
6. Center for Atmospheric Research, University of Nova Gorica, SI-5000 Nova Gorica, Slovenia