1. National Research Council (CNR-IREA),Institute for Electromagnetic Sensing of the Environment,Milan,Italy
2. University of Tartu,Tartu Observatory,Tartu County,Estonia
3. National Research Council (CNR-ISMAR),Institute of Marine Sciences,Venice,Italy
4. University of Klaipeda,Coastal Research and Planning Institute, Marine Science and Technology Centre,Klaipeda,Lithuania
5. National Institute for Space Research (INPE),Earth Observation and Geoinformatics Division (DIOTG),São Paulo,Brazil
6. Italian Space Agency,Rome,Italy
7. National Research Council of Italy (CNR-ISMAR),Institute of Marine Sciences,Rome,Italy