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AS3.17

Polar Ozone and Polar Stratospheric Clouds
Convener: Farahnaz Khosrawi  | Co-Conveners: Geir O. Braathen , Bjoern-Martin Sinnhuber , Marc von Hobe , Michael Pitts 
Orals
 / Mon, 24 Apr, 15:30–17:00 / Room 0.88
Posters
 / Attendance Mon, 24 Apr, 17:30–19:00 / Hall X5
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The session will cover all aspects of polar stratospheric ozone, other species in the polar regions as well as all aspects of polar stratospheric clouds. Special emphasis is given to results from recent polar campaigns, including observational and model studies.

We encourage contributions on chemistry, microphysics, radiation, dynamics, small and large scale transport phenomena, mesoscale processes and polar-midlatitudinal exchange. In particular, we encourage contributions on ClOx/BrOx chemistry, chlorine activation, NAT nucleation mechanisms and on transport and mixing of processed air to lower latitudes.

We welcome contributions on polar aspects of ozone/climate interactions, including empirical analyses and coupled chemistry/climate model results and coupling between tropospheric climate patterns and high latitude ozone as well as representation of the polar vortex and polar stratospheric ozone loss in global climate models.

We particularly encourage contributions from the airborne POLSTRACC field campaign (Polar Stratosphere in a Changing Climate) and related activities, which aim at providing new scientific knowledge on the Arctic lowermost stratosphere and upper troposphere in a changing climate.