Session 5. The coupled Arctic system: Improved understanding from recent international campaigns
The Arctic is a sentinel of global climate change, warming at least twice as fast as the rest of the globe. Rapid changes in the Arctic system associated with the fast sea ice retreat also have a substantial impact on socioeconomics and both regional and global weather and climate. However, our knowledge of coupled system processes has been limited due to a lack of coordinated observations in the high Arctic, covering a full annual cycle including the winter period. Recent and ongoing programs, such as the year-around international MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of the Arctic Climate), Changing Arctic Ocean (UK) and the Nansen Legacy (Norway), aim to collect data in the high Arctic to improve our understanding of key processes among the atmosphere, sea ice, ocean and seafloor. These enhanced, comprehensive observational efforts will ultimately support improvement of sea ice, ecological, weather, and climate predictions.
This session primarily targets recent findings from the MOSAiC expedition, Changing Arctic Ocean, and Nansen Legacy programs and encourages additional contributions from other similar Arctic research initiatives. We invite presentations of recent in-situ and remote sensing observations and modelling studies that examine coupled climate processes in the Arctic atmosphere, ocean, snow and sea ice, including biogeochemistry and the ecosystem. We are especially interested in contributions that highlight the direct interactions between these components of the coupled Arctic system. Furthermore, studies that examine large-scale linkages between the Arctic and lower latitudes are welcome. We hope to facilitate cross-disciplinary discussions and foster international collaboration between national and international initiatives.
We invite submissions addressing topics relevant to those highlighted above, and specific focus areas such as:
- Arctic Atmosphere: Clouds & aerosols, thermodynamic structure, energy fluxes
- Arctic Sea Ice: Snow on sea ice, Sea ice dynamics, Atmosphere-Ice coupling
- Arctic Ocean: Advective processes, ocean-ice and ocean-seafloor interactions, energy, nutrient and material fluxes
- Biogeochemistry in the Arctic: Tracing biogeochemical reactions during freeze and melt cycles; Trace gas exchange with both the overlaying Arctic atmospheric boundary layer and the underlying sea ice influenced ocean
- Arctic Marine Ecosystems: Ecological-physical interactions, sea-ice-pelagic-benthic coupling, climatic forcing and phenology, interactions within food webs
- Observations of the coupled Arctic climate system during Polar Night.
- Mats Granskog, Norwegian Polar Institute, Norway (co-lead)
- Anja Sommerfeld, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Germany (co-lead)
- Jessie Creamean, Colorado State University, USA
- Andreas Macke, TROPOS, Germany
- Finlo Cottier, Scottish Association for Marine Science, UK & UiT The Arctic University of Norway
- Ellen Damm, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Germany
- Claire Mahaffey, University of Liverpool, UK
- Johanna Myrseth Aarflot, Institute of Marine Research Bergen, Norway (secretary)
Alexey Pavlov email +47 948 45 342