Impacts of a sea-ice free Arctic on oceanic biogeochemical fluxes

Motivation: Future threats to the Arctic and the ozone layer?

Questions:

• How is oceanic halocarbon production changing in a future climate in a sea ice-free Arctic?
• What are the impacts on ozone, radiation, and climate?

Data:

• Observations: Ship campaign measurements: surface water and atmospheric halocarbon concentrations (CHBr3 bromoform), SST, SSS, wind
• Model: The NorESM model incl chemistry, present-day and future projections

Method:

• Data analysis: Comparison between model and observation data for the present and analysis of future projections.
• Own model experiments with NorESM may be possible upon request.