Margherita Righini, University School for Advanced Studies IUSS Pavia, Italy; Emiliana Valentini, Institute of Polar Sciences, National Research Council of Italy (ISP CNR), Italy; Serena Sapio, Chiara Marinelli, Ignacio Gatti, Maria José Jimenez, University School for Advanced Studies IUSS Pavia, Italy; Mariano Bresciani, Claudia Giardino, Monica Pinardi, Mirco Boschetti, Salvatore Mangano, Institute for Electromagnetic Sensing of the Environment, National Research Council of Italy, Italy; Maria Girolamo Daraio, Maria Libera Battagliere, Italian Space Agency (ASI), Italy; Andrea Taramelli, University School for Advanced Studies IUSS Pavia, Italy