Description:

The evolution of the Arctic climate system is of great societal relevance, both inside and outside the Arctic. In recent decades, rapid, and in some cases unprecedented, changes in this very sensitive region have been observed. Yet, the process drivers and remote and local interactions of these rapid changes remain unclear. It is clear that the radiative and turbulent flux energy exchanges between the atmosphere, ocean, and sea ice play a crucial role. This session covers the coupled interactions and energy exchanges between the atmosphere, ocean, sea ice, and marine biosphere in the 'New Arctic'. Specific topics of interest include surface turbulent flux exchanges over the Arctic Ocean, sea ice, and land and their influence on the atmospheric circulation and ocean mixed layer characteristics in observations and models, regime-dependent biases in the representation of Arctic surface turbulent and radiative fluxes in models, projected changes in surface turbulent fluxes under climate change, wind-wave interactions, and marine biogenic aerosol sources.