Effect of stratosphere-troposphere exchange on the future tropospheric ozone trend

This paper investigates the impact of circulation changes in a changed climate on the exchange of ozone between the stratosphere and the troposphere. We have identified an increase in the net transport of ozone into the troposphere in the future climate of 37%, although a decreased ozone lifetime me...

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Bibliographic Details
Published in:Journal of Geophysical Research. D. Atmospheres 2003-06, Vol.108 (D12), p.STA13.1-n/a
Main Authors: Collins, W. J., Derwent, R. G., Garnier, B., Johnson, C. E., Sanderson, M. G., Stevenson, D. S.
Format: Article
Language:English
Subjects:
Atmospheric composition. Chemical and photochemical reactions
Chemical composition and interactions. Ionic interactions and processes
chemistry transport modeling
climate change
Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
Physics of the high neutral atmosphere
stratosphere-troposphere exchange
tropospheric chemistry
tropospheric ozone
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Summary:This paper investigates the impact of circulation changes in a changed climate on the exchange of ozone between the stratosphere and the troposphere. We have identified an increase in the net transport of ozone into the troposphere in the future climate of 37%, although a decreased ozone lifetime means that the overall tropospheric burden decreases. There are regions in the midlatitudes to high latitudes where surface ozone is predicted to increase in the spring. However, these increases are not significant. Significant ozone increases are predicted in regions of the upper troposphere. The general increase in the stratospheric contribution (O3s tracer) to tropospheric ozone in the climate changed scenario indicates that the stratosphere will play an even more significant role in the future.
ISSN:0148-0227
2156-2202
DOI:10.1029/2002JD002617