1. Consiglio Nazionale delle Ricerche (CNR),Istituto di Scienze Marine (ISMAR),Napoli,Italy
2. Koninklijk Nederlands Meteorologisch Instituut (KNMI),R&D Satellite Observations,De Bilt,The Netherlands
3. Consejo Superior de Investigaciones Científicas (CSIC),Institut de Ciencies del Mar (ICM),Barcelona,Spain