Summer extreme cyclone impacts on Arctic sea ice

Abstract In this study the impact of extreme cyclones on Arctic sea ice in summer is investigated. Examined particular are relative thermodynamic and dynamic contributions to volume budgets vicinity 2012 2016. Results from investigation illustrate loss cyclone trajectories during each year were associated with different dominant processes: (melting) Pacific sector 2012, both processes Comparison years further suggests that minimum extent influenced by not only strength cyclone, but also timing location edge. Located near edge early August over central later 2016, contributed comparable area (SIA) loss, yet enhanced Central a characterization impacts perspective processes, we present an index describing changes. This helps quantify improve our understanding initial state dynamical responses rapidly warming Arctic, implications for seasonal forecasting, marine navigation, coastal community infrastructure designation protected ecologically sensitive zones.