1. LEGOS/IRD UMR 5566 Toulouse France
2. Now at LIENSs/CNRS UMR 7266, University of La Rochelle France
3. LIENSs/CNRS UMR 7266, University of La Rochelle France
4. IMEDEA(UIB‐CSIC) Mallorca Spain
5. NOC Liverpool UK
6. Institute for Geophysics and MeteorologyUniversity of Cologne Cologne Germany