Previous: Conditions for activation and transport Next: Acknowledgements Up: Ext. Abst.

Conclusions

The proposed approach gives an estimate of the activated air outside the polar vortex. Strong inter-annual variability is observed. The simulations will be compared with ozone measurements in order to identify signatures corresponding to the interannual variability or singular strong events as large scale filaments in order to identify the effect of PSCs activation on stratospheric midlatitude ozone budget. Moreover a climatological study of the synoptic meteorological conditions related to the presence of PSCs outside the polar vortex is under way.