Articles | Volume 16, issue 12
https://doi.org/10.5194/acp-16-7957-2016
https://doi.org/10.5194/acp-16-7957-2016
Research article
 | 
30 Jun 2016
Research article |  | 30 Jun 2016

Persistence of upper stratospheric wintertime tracer variability into the Arctic spring and summer

David E. Siskind, Gerald E. Nedoluha, Fabrizio Sassi, Pingping Rong, Scott M. Bailey, Mark E. Hervig, and Cora E. Randall

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Short summary
The strong descent of wintertime mesospheric air into the stratosphere has been of great recent interest. Here, we show that because mesospheric air is depleted in methane, it implies that chlorine will be found more in its active form, chlorine monoxide. This is a new way for mesosphere/stratosphere coupling to affect ozone. Second, these effects seem to persist longer than previously thought. Studies of the summer upper stratosphere should consider the conditions from the previous winter.
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