Articles | Volume 20, issue 22
Atmos. Chem. Phys., 20, 14333–14346, 2020
https://doi.org/10.5194/acp-20-14333-2020
Atmos. Chem. Phys., 20, 14333–14346, 2020
https://doi.org/10.5194/acp-20-14333-2020

Research article 25 Nov 2020

Research article | 25 Nov 2020

Total column ozone in New Zealand and in the UK in the 1950s

Stefan Brönnimann and Sylvia Nichol

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Cited articles

Bodeker, G. E., Hassler, B., Young, P. J., and Portmann, R. W.: A vertically resolved, global, gap-free ozone database for assessing or constraining global climate model simulations, Earth Syst. Sci. Data, 5, 31–43, https://doi.org/10.5194/essd-5-31-2013, 2013. 
Bojkov, R. D.: International Ozone Commission: History and activities, IAMAS Publication Series No. 2, Oberpfaffenhofen, Germany, 2012. 
Bojkov, R. D., Komhyr, W. D., Lapworth, A., and Vanicek, K.: Handbook for Dobson Ozone Data Re-evaluation, WMO/GAW Global Ozone Research and Monitoring Project, Report No. 29, WMO/TD-no. 597, Geneva, Switzerland, 1993. 
Brönnimann, S.: Climatic changes since 1700, Springer, Advances in Global Change Research Vol. 55, xv + 360 pp., https://doi.org/10.1007/978-3-319-19042-6, 2015. 
Brönnimann, S. and Compo, G. P.: Ozone highs and associated flow features in the first half of the twentieth century in different data sets, Meteorol. Z., 21, 49–59, 2012. 
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Short summary
Historical column ozone data from New Zealand and the UK from the 1950s are digitised and re-evaluated. They allow studying the ozone layer prior to the era of ozone depletion. Day-to-day changes are addressed, which reflect the flow near the tropopause and hence may serve as a diagnostic for atmospheric circulation in a time and region of sparse radiosondes. A long-term comparison shows the amount of ozone depletion at southern mid-latitudes and indicates how far we are from full recovery.
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