Anne L. Moree, Geophysical Institute, University of Bergen and the Bjerknes Centre for Climate Research, Bergen, Norway, Tianyi Sun, Institute for Geophysics, Jackson School of Geosciences, the University of Texas at Austin, Austin, TX, United States, Anaïs Bretones, Department of Earth Science, University of Bergen and the Bjerknes Centre for Climate, Bergen, Norway, Eivind Olavson Straume, Centre for Earth Evolution and Dynamics (CEED), Department of geosciences , University of Oslo, Oslo, Norway, Kerim Hestnes Nisancioglu, University of Bergen and the Bjerknes Centre for Climate Research, Bergen, Norway and Geoffrey Gebbie, Woods Hole Oceanographic Institute, Woods Hole, United States