1. Department of Civil, Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
2. Department of Geosciences, University of Malta, 2080 MSD Msida, Malta
3. Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy
4. Department of Earth and Sea Sciences, University of Palermo, Via Archirafi, 22, 90123 Palermo, Italy
5. Institute of Methodologies for Environmental Analysis, National Research Council of Italy (IMAA CNR), C. da S. Loja—Zona Industriale, Tito Scalo, 85050 Potenza, Italy
6. Institute for Electromagnetic Sensing of the Environment, National Research Council of Italy (IREA CNR), Via Diocleziano 328, 80127 Napoli, Italy
7. Department of Agricultural, Environmental and Food Sciences, University of Molise, Via De Sanctis snc, 86100 Campobasso, Italy
8. Italian Space Agency (ASI), Via del Politecnico snc, 00133 Rome, Italy