“…The sea ice cover in the Arctic Ocean is in transition to a new, thinner regime. This entails a decrease in the ratio of sea ice thickness to snow load, which increases the likelihood of sea ice flooding events (Granskog et al, 2017; Maslanik et al, 2007; Merkouriadi, Liston, et al, 2020; Stroeve et al, 2012). Ice thinning implies that the ice pack will be more fractured and mobile (Graham et al, 2019; P. Itkin et al, 2017; Spreen et al, 2011), which will increase atmosphere‐ocean interaction, in turn enhancing ocean mixing and, potentially, upper‐ocean vertical heat fluxes.…”