Articles | Volume 20, issue 11
Atmos. Chem. Phys., 20, 6883–6901, 2020
https://doi.org/10.5194/acp-20-6883-2020

Special issue: Chemistry–Climate Modelling Initiative (CCMI) (ACP/AMT/ESSD/GMD...

Atmos. Chem. Phys., 20, 6883–6901, 2020
https://doi.org/10.5194/acp-20-6883-2020

Research article 11 Jun 2020

Research article | 11 Jun 2020

Future trends in stratosphere-to-troposphere transport in CCMI models

Marta Abalos et al.

Data sets

CCMI output data CEDA (Centre for Environmental Data Analysis) http://data.ceda.ac.uk/badc/wcrp-ccmi/data/CCMI-1/output/

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Short summary
A set of state-of-the art chemistry–climate models is used to examine future changes in downward transport from the stratosphere, a key contributor to tropospheric ozone. The acceleration of the stratospheric circulation results in increased stratosphere-to-troposphere transport. In the subtropics, downward advection into the troposphere is enhanced due to climate change. At higher latitudes, the ozone reservoir above the tropopause is enlarged due to the stronger circulation and ozone recovery.
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