| Summary: | Observations have demonstrated that sea ice is biologically and chemically active in the global biogeochemical cycles. However, Earth system models currently represent sea ice as biologically and chemically inert. The aim of this session is to bring together those working on all aspects of sea ice biogeochemistry to gain a better understanding of the exchanges at the interface between sea ice and the atmosphere and sea ice and the ocean. We particularly encourage presentations on processes involved in the distribution of macro-nutrients, trace metals and organic carbon, as well as the uptake and production of climatically-important gases such as CO2, CH4, and DMS.
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