Articles | Volume 21, issue 14
Atmos. Chem. Phys., 21, 11041–11052, 2021
https://doi.org/10.5194/acp-21-11041-2021
Atmos. Chem. Phys., 21, 11041–11052, 2021
https://doi.org/10.5194/acp-21-11041-2021

Research article 21 Jul 2021

Research article | 21 Jul 2021

Effects of enhanced downwelling of NOx on Antarctic upper-stratospheric ozone in the 21st century

Ville Maliniemi et al.

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Short summary
We simulate ozone variability over the 21st century with different greenhouse gas scenarios. Our results highlight a novel mechanism of additional reactive nitrogen species descending to the Antarctic stratosphere from the thermosphere/upper mesosphere due to the accelerated residual circulation under climate change. This excess descending NOx can potentially prevent a super recovery of ozone in the Antarctic upper stratosphere.
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