Cecilia Äijälä¹, Lucia Gutierrez-Loza², Siv K Lauvset³, Wieslaw Maslowski⁴, Wolfgang Dorn⁵ and Petteri Uotila¹, (1)INAR, University of Helsinki, Helsinki, Finland, (2)NORCE Research, Department of Climate and Environment, Bergen, Norway, (3)NORCE Research, Climate and Environment, Bjerknes Centre for Climate Research, Bergen, Norway, (4)Naval Postgraduate School, Monterey, CA, United States, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany