| Summary: | Presentation of Research Projects at ICM -2nd session POLAR-CHANGE aims to study the sources, composition and dynamics of aerosols in Arctic and Antarctic environments. Using experimental approaches in the field and in the lab as well as state of-the-art data analysis, POLAR-CHANGE intends to link aerosol emission processes with the polar marine biosphere and cryosphere. During this multidisciplinary project we will (1) put together aerosol size distribution data from a large international network of observations including 7 Arctic and 8 Antarctic research stations, (2) run extensive laboratory experiments with a seaspray aerosol chamber of our design, and (3) conduct an oceanographic cruise to productive waters of the eastern side of the Antarctic Peninsula and the Weddell Sea, where the overall hypotheses can be verified or falsified by open ocean ship-borne observations from both ocean and atmosphere. The cruise, which will gather an international team, will include a visit to pelagic and sympagic ecosystems with different dominant taxa and associated with different physico-chemical forcing. Our approach will be to synergistically use our competences in plankton ecology, ocean-atmosphere biogeochemistry and atmospheric chemistry in a project without precedent in the studied area Peer reviewed
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