Articles | Volume 17, issue 3
Atmos. Chem. Phys., 17, 1741–1758, 2017
https://doi.org/10.5194/acp-17-1741-2017
Atmos. Chem. Phys., 17, 1741–1758, 2017
https://doi.org/10.5194/acp-17-1741-2017

Research article 03 Feb 2017

Research article | 03 Feb 2017

Evolution of the eastward shift in the quasi-stationary minimum of the Antarctic total ozone column

Asen Grytsai et al.

Data sets

Overview of IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) community simulations in support of upcoming ozone and climate assessments V. Eyring, J.-F. Lamarque, P. Hess, F. Arfeuille, K. Bowman, M. P. Chipperfield, B. Duncan, A. Fiore, A. Gettelman, M. A. Giorgetta, C. Granier, M. Hegglin, D. Kinnison, M. Kunze, U. Langematz, B. Luo, R. Martin, K. Matthes, P. A. Newman, T. Peter, A. Robock, T. Ryerson, A. Saiz-Lopez, R. Salawitch, M. Schultz, T. G. Shepherd, D. Shindell, J. Staehelin, S. Tegtmeier, L. Thomason, S. Tilmes, J.-P. Vernier, D. Waugh, and P. Y. Young http://www.temis.nl/protocols/O3global.html

The ERA-Interim reanalysis: configuration and performance of the data assimilation system D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. Hólm, L. Isaksen, P. Kållberg, M. Köhler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette1, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Thépaut and F. Vitart http://www.ecmwf.int/en/research/climate-reanalysis/era-interim

The NCEP/NCAR 40-year Reanalysis Project E. Kalnay, M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, A. Leetmaa, R. Reynolds, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K. C. Mo, C. Ropelewski, J. Wang, Roy Jenne, and Dennis Joseph https://www.esrl.noaa.gov/psd/cgi-bin/data/getpage.pl

Multi sensor reanalysis of total ozone R. J. van der A, M. A. F. Allaart, and H. J. Eskes http://www.temis.nl/protocols/O3global.html

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Short summary
Twenty years ago we discovered that the ozone hole shape is asymmetric. This asymmetry is minimum over the Weddell Sea region and maximum over the Ross Sea area. Later we detected that the position of the ozone minimum is shifting east. We have continued to follow this event, and a couple years ago we revealed that the shift is slowing down and starting to move back. We connect all this movement with ozone hole increase; since 2000 the ozone layer has been stabilizing and recently recovering.
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