The impact of stratospheric ozone recovery on the Southern Hemisphere westerly jet

Son, S.-W., Polvani, L. M., Waugh, D. W., Akiyoshi, H., Garcia, R., Kinnison, D., Pawson, S., Rozanov, E., Shepherd, T. G. ORCID: https://orcid.org/0000-0002-6631-9968 and Shibata, K. (2008) The impact of stratospheric ozone recovery on the Southern Hemisphere westerly jet. Science, 320 (5882). pp. 1486-1489. ISSN 0036-8075 doi: 10.1126/science.1155939

Abstract/Summary

In the past several decades, the tropospheric westerly winds in the Southern Hemisphere have been observed to accelerate on the poleward side of the surface wind maximum. This has been attributed to the combined anthropogenic effects of increasing greenhouse gases and decreasing stratospheric ozone and is predicted to continue by the Intergovernmental Panel on Climate Change/Fourth Assessment Report (IPCC/AR4) models. In this paper, the predictions of the Chemistry-Climate Model Validation (CCMVal) models are examined: Unlike the AR4 models, the CCMVal models have a fully interactive stratospheric chemistry. Owing to the expected disappearance of the ozone hole in the first half of the 21st century, the CCMVal models predict that the tropospheric westerlies in Southern Hemisphere summer will be decelerated, on the poleward side, in contrast with the prediction of most IPCC/AR4 models.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/28448
Item Type	Article
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Publisher	American Association for the Advancement of Science
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