Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 23, issue 5
Articles | Volume 23, issue 5
https://doi.org/10.5194/acp-23-3347-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-23-3347-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 5
Research article
 | 
17 Mar 2023
Research article |  | 17 Mar 2023

The role of tropical upwelling in explaining discrepancies between recent modeled and observed lower-stratospheric ozone trends

Sean M. Davis, Nicholas Davis, Robert W. Portmann, Eric Ray, and Karen Rosenlof

Supplement

https://doi.org/10.5194/acp-23-3347-2023-supplement

Data sets

The Stratospheric Water and Ozone Satellite Homogenized (SWOOSH) database S. Davis https://csl.noaa.gov/swoosh

ERA-Interim Reanalysis European Centre for Medium Range Weather Forecasting (ECMWF) https://apps.ecmwf.int/datasets/data/interim-full-moda/

ERA-5 Reanalysis European Centre for Medium Range Weather Forecasting (ECMWF) https://cds.climate.copernicus.eu/\#!/search?text=ERA5&type=dataset

MERRA2 Reanalysis NASA Global Monitoring and Assimilation Office https://doi.org/10.5067/WWQSXQ8IVFW8

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Short summary
Ozone in the lower part of the stratosphere has not increased and has perhaps even continued to decline in recent decades. This study demonstrates that the amount of ozone in this region is highly sensitive to the amount of air upwelling into the stratosphere in the tropics and that simulations from a climate model nudged to historical meteorological fields often fail to accurately capture the variations in tropical upwelling that control short-term trends in lower-stratospheric ozone.
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Long-term changes and trends in the middle and upper...
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