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On the Cause of Recent Variations in Lower Stratospheric Ozone

Chipperfield, M., S. Dhomse, R. Hossaini, W. Feng, M. Santee, M. Weber, J. P. Burrows, J. D. Wild, D. Loyola, and M. Coldewey-Egbers (2018), On the Cause of Recent Variations in Lower Stratospheric Ozone, Geophys. Res. Lett., 45, 5718-5726, doi:10.1029/2018GL078071.

We use height-resolved and total column satellite observations and 3-D chemical transport model simulations to study stratospheric ozone variations during 1998–2017 as ozone-depleting substances decline. In 2017 extrapolar lower stratospheric ozone displayed a strong positive anomaly following much lower values in 2016. This points to large interannual variability rather than an ongoing downward trend, as reported recently by Ball et al. (2018, https://doi.org/10.5194/acp-18-1379-2018). The

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