1. Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA‐CNRS‐UVSQ/IPSL Gif‐sur‐Yvette France
2. Alfred Wegener Institute Helmholtz‐Center for Polar and Marine Research Bremerhaven Bremerhaven Germany
3. Geophysical Institute University of Bergen Bergen Norway
4. Alfred Wegener Institute Helmholtz‐Center for Polar and Marine Research Potsdam Germany