Articles | Volume 17, issue 11
https://doi.org/10.5194/acp-17-6743-2017
https://doi.org/10.5194/acp-17-6743-2017
Research article
 | 
08 Jun 2017
Research article |  | 08 Jun 2017

Secondary ozone peaks in the troposphere over the Himalayas

Narendra Ojha, Andrea Pozzer, Dimitris Akritidis, and Jos Lelieveld

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Short summary
We investigate the processes, frequency of occurrence and seasonality, and effects of strongly enhanced ozone layers in the middle–upper troposphere (SOPs) over the Himalayas using a global model (EMAC). Rapid transport of stratospheric air masses is found as a key underlying process. Model predicts more frequent SOP events during the pre-monsoon. SOPs are found to significantly enhance the tropospheric ozone column over the Himalayas.
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