[1] Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Bremerhaven, Germany
[2] Univ Bremen, Inst Umweltphys IUP, Zentrum Marine Umweltwissensch MARUM, Bremen, Germany
[3] Univ Trier, Environm Meteorol, Trier, Germany
[4] Free Univ Berlin, Inst Meteorol, Berlin, Germany
[5] Max Planck Inst Chem, Mainz, Germany
[6] Dept Geosci, Guyot Hall, Princeton, NJ 08544 USA
[7] Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Potsdam, Germany
[8] GEOMAR Helmholtz Zentrum Ozeanforsch Kiel, Kiel, Germany
[9] Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow, Russia
[10] Leibniz Univ Hannover, Inst Meteorol & Klimatol, Hannover, Germany
[11] Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, W Midlands, England
[12] Univ Southampton, Natl Oceanog Ctr Southampton, Ocean & Earth Sci, Southampton, Hants, England
[13] European Commiss, Joint Res Ctr, Sci Serv, Brussels, Belgium