Agnieszka Beszczynska-Möller¹, Hanne Sagen², Peter Voss³, Mikael Sejr⁴, Thomas Soltwedel⁵, Truls Johannessen⁶, Marie-Noelle Houssais⁷, Andreas Rogge⁵, Ian Allan⁸, Frank Nilsen⁹, Angelika Renner¹⁰, Lars Henrik Smedsrud⁶, Nicholas Roden⁶, Jean-Pierre Gattuso¹¹, Laurent Chauvaud¹², Claudie Marec¹², Bin Cheng¹³, Andrew King⁸, Christine Provost⁷, Marcel Babin¹⁴ and Mathilde Sørensen¹⁵, (1)Institute of Oceanology Polish Academy of Sciences, Sopot, Poland, (2)Nansen Environmental and Remote Sensing Center, Bergen, Norway, (3)Geological Survey of Denmark and Greenland, København K, Denmark, (4)Aarhus University, Department of Bioscience, Aarhus, Denmark, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany, (6)University of Bergen, Geophysical Institute, Bergen, Norway, (7)CNRS-LOCEAN, Paris, France, (8)Norwegian Institute for Water Research, Oslo, Norway, (9)The University Centre in Svalbard, Longyearbyen, Norway, (10)Institute of Marine Research, Tromsø, Norway, (11)CNRS-INSU, Laboratoire d’Océanographie de Villefranche, Villefranche-sur-mer, France, (12)CNRS-UIEM, Brest, France, (13)Finnish Meteorological Institute, Helsinki, Finland, (14)Takuvik Joint International Laboratory, Université Laval & CNRS, Québec, QC, Canada, (15)University of Bergen, Department of Earth Sciences, Bergen, Norway