https://www.meteoswiss.admin.ch/services-and-publications/publications/scientific-publications/peer-reviewed/vortex-averaged-arctic-ozone-depletion-in-the-winter-2002-2003atmos-chem-phys-discuss-4-6667-6689.html
Vortex-averaged Arctic ozone depletion in the winter 2002/2003Atmos. Chem. Phys. Discuss., 4,...