Articles | Volume 17, issue 22
Atmos. Chem. Phys., 17, 14075–14084, 2017
https://doi.org/10.5194/acp-17-14075-2017
Atmos. Chem. Phys., 17, 14075–14084, 2017
https://doi.org/10.5194/acp-17-14075-2017
Research article
27 Nov 2017
Research article | 27 Nov 2017

The evolution of zonally asymmetric austral ozone in a chemistry–climate model

Fraser Dennison et al.

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Cited articles

Albers, J. R. and Nathan, T. R.: Pathways for communicating the effects of stratospheric ozone to the polar vortex: role of zonally asymmetric ozone, J. Atmos. Sci., 69, 785–801, https://doi.org/10.1175/JAS-D-11-0126.1, 2012.
Baldwin, M. P., Hirooka, T., Alan, O., and Yodon, S.: Major stratospheric warming in the Southern Hemisphere in 2002: dynamical aspects of the ozone hole split, SPARC Newslett., 20, 24–26, 2003.
Behrens, E., Rickard, G., Morgenstern, O., Martin, T., Osprey, A., and Joshi, M.: Southern Ocean deep convection in global climatemodels: A driver for variability of subpolar gyres and Drake Passage transport on decadal timescales, J. Geophys. Res.-Oceans, 121, 3905–3925, https://doi.org/10.1002/2015JC011286, 2016.
Beron-Vera, F. J., Olascoaga, M. J., Brown, M. G., and Koçak, H.: Zonal Jets as Meridional Transport Barriers in the Subtropical and Polar Lower Stratosphere, J. Atmos. Sci., 69, 753–767, https://doi.org/10.1175/JAS-D-11-084.1, 2012.
Butchart, N., Scaife, A. A., Bourqui, M., Grandpré, J., Hare, S. H. E., Kettleborough, J., Langematz, U., Manzini, E., Sassi, F., Shibata, K., Shindell, D., and Sigmond, M.: Simulations of anthropogenic change in the strength of the Brewer–Dobson circulation, Clim. Dynam., 27, 727–741, https://doi.org/10.1007/s00382-006-0162-4, 2006.
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The Antarctic ozone is not centred directly over the pole. In this research we examine how the position and shape of the ozone hole changes using a chemistry–climate model. As ozone becomes increasingly depleted during the late 20th century the centre of the ozone hole moves toward the west and becomes more circular. As the ozone hole recovers over the course of the 21st century the ozone hole moves back towards the east.
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