Articles | Volume 15, issue 12
Atmos. Chem. Phys., 15, 6817–6826, 2015
https://doi.org/10.5194/acp-15-6817-2015
Atmos. Chem. Phys., 15, 6817–6826, 2015
https://doi.org/10.5194/acp-15-6817-2015

Research article 19 Jun 2015

Research article | 19 Jun 2015

Unusual stratospheric ozone anomalies observed in 22 years of measurements from Lauder, New Zealand

G. E. Nedoluha et al.

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Short summary
This paper highlights 2 unusual mid-stratospheric O3 anomalies in our 22-year ground-based data set. One of these is a large month long increase in June 2001 which we are able to associate with very unusually low equatorial air which persists over Lauder for much of June. The other O3 anomaly persists for ~4 years; using MLS data, we show that this is associated with unusually high N2O during this period. During this period there is also a low O3 and N2O anomaly in the tropics.
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