Articles | Volume 16, issue 13
https://doi.org/10.5194/acp-16-8667-2016
https://doi.org/10.5194/acp-16-8667-2016
Research article
 | 
15 Jul 2016
Research article |  | 15 Jul 2016

A semi-empirical model for mesospheric and stratospheric NOy produced by energetic particle precipitation

Bernd Funke, Manuel López-Puertas, Gabriele P. Stiller, Stefan Versick, and Thomas von Clarmann

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Short summary
We present a semi-empirical model for the reconstruction of polar winter descent of reactive nitrogen (NOy) produced by energetic particle precipitation (EPP) into the stratosphere. It can be used to prescribe NOy in chemistry climate models with an upper lid below the EPP source region. We also found a significant reduction of the EPP-generated NOy during the last 30 years, likely affecting the long-term NOy trend by counteracting the expected increase caused by growing N2O emission.
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