Severe 2011 ozone depletion assessed with 11 years of ozone, NO2, and OClO measurements at 80°N

• Published in: Geophysical Research Letters
• Main Authors: Adams, C., Strong, K., Zhao, X., Bassford, M. R., Chipperfield, M. P., Daffer, W., Drummond, J. R., Farahani, E. E., Feng, W., Fraser, A., Goutail, F., Manney, G., McLinden, C. A., Pazmino, A., Rex, Markus, Walker, K. A.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: AMER GEOPHYSICAL UNION 2012
• Subjects: Arctic; Canada; Eureka
• Online Access: https://epic.awi.de/id/eprint/32032/; http://onlinelibrary.wiley.com/doi/10.1029/2011GL050478/full; https://hdl.handle.net/10013/epic.40739

Unusually cold conditions in Arctic winter 2010/11 led to large stratospheric ozone loss. We investigate this with UV-visible measurements made at Eureka, Canada (80.05°N, 86.42°W) from 1999–2011. For 8–22 March 2011, OClO was enhanced, indicating chlorine activation above Eureka. Ozone columns were...