Stan Jakobs¹, Carleen Reijmer¹, Michiel R van den Broeke¹, Gert König-Langlo², Peter Kuipers Munneke¹, Paul Smeets¹, Luke D Trusel³, Willem Jan van de Berg¹ and Melchior van Wessem¹, (1)Utrecht University, Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (3)Pennsylvania State University, Department of Geography, University Park, PA, United States