Estrella Olmedo, Institute of Marine Sciences (ICM-CSIC), Spain; Alberto Naveira-Garabato, SOTON/NOC, United Kingdom; Aida Alvera-Azcárate, U. Liege, Belgium; Estel Cardellach, ICE-CSIC, Spain; Ignasi Corbella, UPC, Spain; Francisco Doblas, BSC, Spain; Gregory Duveiller, Max Planck Institute for Biogeochemistry, Germany; Marilaure Gregoire, U. Liege, Belgium; Alexander Haumann, AWI/LMU, Germany; Nanna B. Karlsson, GEUS, Denmark; Maria Piles, UV, Spain; Lionel Renault, IRD, France; Manuel Arias, ICM-CSIC, Spain; Jose Barbosa, RDA, Switzerland; Bruno Buongiorno Nardelli, CNR-ISMAR, Italy; Rafael Catany, ARGANS, United Kingdom; Daniele Ciani, CNR-ISMAR, Italy; Josep Closa, AIRBUS, Spain; Camila Colombo, POLIMI, Italy; Raul Diez-Garcia, VEGA, Italy; Nuria Duffo, UPC, Spain; Carolina Gabarró, ICM-CSIC, Spain; Gabriella Gaias, POLIMI, Italy; Aina García-Espriu, Emilio García-Ladona, Veronica Gonzalez-Gambau, Cristina Gonzalez-Haro, ICM-CSIC, Spain; Jari Haapala, FMI, Finland; Helene Hewitt, METOFFICE, United Kingdom; Thomas Jagdhuber, DLR/UniA, Germany; Christoph Kittel, U. Grenoble, France; Alvaro Moreno, UV, Spain; Roger Oliva, Zenithal Blue Technologies, Spain; Miriam Pablos, Marcos Portabella, ICM-CSIC, Spain; Francesca Scala, POLIMI, Italy; Alessandro Silvano, SOTON/NOC, United Kingdom; Anne M. Soolgard, GEUS, Denmark; Louise S. Sorensen, DTU, Denmark; Gunnar Spreen, U Bremen, Germany; Add Stoffelen, KNMI, Netherlands; Laura Tuomi, FMI, Finland; Antonio Turiel, Marta Umbert, ICM-CSIC, Spain; Martin Unwin, SSTL, United Kingdom; Merce Vall-Llossera, UPC, Spain; Jean Pierre Wigneron, INRAE, France; Albert Zurita, AIRBUS, Spain