1. Department of Industrial Engineering and Mathematical Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy
2. Department of Information Engineering, Università Politecnica delle Marche, 60131 Ancona, Italy
3. Department of Science and Engineering of Matter, Environment and Urban Planning, Università Politecnica delle Marche, 60131 Ancona, Italy
4. Institute of Atmospheric Sciences and Climate, National Research Council (ISAC-CNR), 40129 Bologna, Italy