1. Faculty of Physics, Department of Meteorology and Geophysics, Sofia University “St. K. Ohridski”, 1164 Sofia, Bulgaria
2. National Institute of Geophysics, Geodesy and Geography-Bulgarian Academy of Sciences (NIGGG-BAS), 1113 Sofia, Bulgaria
3. GATE Institute, Sofia University “St. Kliment Ohridski”, 1113 Sofia, Bulgaria
4. Department of Urban Planning, Faculty of Architecture, University of Architecture Civil Engineering and Geodesy, 1164 Sofia, Bulgaria
5. Environmental Health Division, Research Institute at Medical University of Plovdiv, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
6. Department Mathematics, Faculty of Transportation Engineering, University of Architecture Civil Engineering and Geodesy, 1164 Sofia, Bulgaria
7. Department of Meteorology, National Institute of Meteorology and Hydrology, 1784 Sofia, Bulgaria
8. Department of Measurements, Metrology, and IT, National Institute of Meteorology and Hydrology, 1784 Sofia, Bulgaria