Tropospheric jet response to Antarctic ozone depletion: An update with Chemistry-Climate Model Initiative (CCMI) models

Seok Woo Son*, Bo Reum Han, Chaim I. Garfinkel, Seo Yeon Kim, Rokjin Park, N. Luke Abraham, Hideharu Akiyoshi, Alexander T. Archibald, N. Butchart, Martyn P. Chipperfield, Martin Dameris, Makoto Deushi, Sandip S. Dhomse, Steven C. Hardiman, Patrick Jöckel, Douglas Kinnison, Martine Michou, Olaf Morgenstern, Fiona M. O'Connor, Luke D. OmanDavid A. Plummer, Andrea Pozzer, Laura E. Revell, Eugene Rozanov, Andrea Stenke, Kane Stone, Simone Tilmes, Yousuke Yamashita, Guang Zeng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

The Southern Hemisphere (SH) zonal-mean circulation change in response to Antarctic ozone depletion is re-visited by examining a set of the latest model simulations archived for the Chemistry-Climate Model Initiative (CCMI) project. All models reasonably well reproduce Antarctic ozone depletion in the late 20th century. The related SH-summer circulation changes, such as a poleward intensification of westerly jet and a poleward expansion of the Hadley cell, are also well captured. All experiments exhibit quantitatively the same multi-model mean trend, irrespective of whether the ocean is coupled or prescribed. Results are also quantitatively similar to those derived from the Coupled Model Intercomparison Project phase 5 (CMIP5) high-top model simulations in which the stratospheric ozone is mostly prescribed with monthly- and zonally-averaged values. These results suggest that the ozone-hole-induced SH-summer circulation changes are robust across the models irrespective of the specific chemistry-atmosphere-ocean coupling.

Original languageAmerican English
Article number054024
JournalEnvironmental Research Letters
Volume13
Issue number5
DOIs
StatePublished - May 2018

Bibliographical note

Publisher Copyright:
© 2018 The Author(s). Published by IOP Publishing Ltd.

Keywords

  • Southern Hemisphere jet trends
  • chemistry-climate model initiative (CCMI)
  • ozone depletion

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