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Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment

Son, S.-W. and Gerber, E. P. and Perlwitz, J. and Polvani, L. M. and Gillett, N. P. and Seo, K.-H. and Eyring, Veronika and Shepherd, T.G. and Waugh, D. and Akiyoshi, H. and Austin, J. and Baumgaertner, A. and Bekki, S. and Brühl, C. and Braesicke, P. and Butchart, N. and Chipperfield, M. and Cugnet, D. and Dameris, Martin and Dhomse, S. and Frith, S. and Garny, Hella and Garcia, R. and Hardiman, S.C. and Jöckel, P. and Lamarque, J.F. and Mancini, E. and Marchand, M. and Michou, M. and Morgenstern, O. and Nakamura, T. and Pitari, G. and Plummer, D.A. and Pyle, J.A. and Rozanov, E. and Scinocca, J.F. and Shibata, K. and Smale, D. and Teyssèdre, H. and Tian, W. and Yamashita, Y. (2010) Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment. Journal of Geophysical Research, 115 (D00M07), pp. 1-18. DOI: 10.1029/2010JD014271. ISSN 0148-0227.

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Official URL: http://www.agu.org/journals/jd/jd1019/2010JD014271/

Abstract

The impact of stratospheric ozone on the tropospheric general circulation of the Southern Hemisphere (SH) is examined with a set of chemistry-climate models participating in the Stratospheric Processes and their Role in Climate (SPARC)/Chemistry-Climate Model Validation project phase 2 (CCMVal-2). Model integrations of both the past and future climates reveal the crucial role of stratospheric ozone in driving SH circulation change: stronger ozone depletion in late spring generally leads to greater poleward displacement and intensification of the tropospheric midlatitude jet, and greater expansion of the SH Hadley cell in the summer. These circulation changes are systematic as poleward displacement of the jet is typically accompanied by intensification of the jet and expansion of the Hadley cell. Overall results are compared with coupled models participating in the Intergovernmental Panel on Climate Change Fourth Assessment Report (IPCC AR4), and possible mechanisms are discussed. While the tropospheric circulation response appears quasi-linearly related to stratospheric ozone changes, the quantitative response to a given forcing varies considerably from one model to another. This scatter partly results from differences in model climatology. It is shown that poleward intensification of the westerly jet is generally stronger in models whose climatological jet is biased toward lower latitudes. This result is discussed in the context of quasi-geostrophic zonal mean dynamics.

Document Type:Article
Title:Impact of stratospheric ozone on Southern Hemisphere circulation change: A multimodel assessment
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID
Son, S.-W.McGill Univ., Montreal, CNDUNSPECIFIED
Gerber, E. P.New York Univ., New York, NY, USAUNSPECIFIED
Perlwitz, J.Univ. of Colorado at Boulder, Boulder, CO, USAUNSPECIFIED
Polvani, L. M.Columbia Univ., New York, NY, USAUNSPECIFIED
Gillett, N. P.Univ. of Victoria, Victoria, BC, CNDUNSPECIFIED
Seo, K.-H.Pusan National Univ., Pusan, South KoreaUNSPECIFIED
Eyring, VeronikaDLR, IPAUNSPECIFIED
Shepherd, T.G.Uni Toronto, Toronto, Ontario, CNDUNSPECIFIED
Waugh, D.Johns Hopkins Univ., Baltimore, MD, USAUNSPECIFIED
Akiyoshi, H.UNSPECIFIEDUNSPECIFIED
Austin, J.UNSPECIFIEDUNSPECIFIED
Baumgaertner, A.UNSPECIFIEDUNSPECIFIED
Bekki, S.UNSPECIFIEDUNSPECIFIED
Brühl, C.UNSPECIFIEDUNSPECIFIED
Braesicke, P.UNSPECIFIEDUNSPECIFIED
Butchart, N.UNSPECIFIEDUNSPECIFIED
Chipperfield, M.UNSPECIFIEDUNSPECIFIED
Cugnet, D.UNSPECIFIEDUNSPECIFIED
Dameris, MartinDLR, IPAUNSPECIFIED
Dhomse, S.UNSPECIFIEDUNSPECIFIED
Frith, S.UNSPECIFIEDUNSPECIFIED
Garny, HellaDLR, IPAUNSPECIFIED
Garcia, R.UNSPECIFIEDUNSPECIFIED
Hardiman, S.C.UNSPECIFIEDUNSPECIFIED
Jöckel, P.UNSPECIFIEDUNSPECIFIED
Lamarque, J.F.UNSPECIFIEDUNSPECIFIED
Mancini, E.UNSPECIFIEDUNSPECIFIED
Marchand, M.UNSPECIFIEDUNSPECIFIED
Michou, M.UNSPECIFIEDUNSPECIFIED
Morgenstern, O.UNSPECIFIEDUNSPECIFIED
Nakamura, T.UNSPECIFIEDUNSPECIFIED
Pitari, G.UNSPECIFIEDUNSPECIFIED
Plummer, D.A.UNSPECIFIEDUNSPECIFIED
Pyle, J.A.UNSPECIFIEDUNSPECIFIED
Rozanov, E.UNSPECIFIEDUNSPECIFIED
Scinocca, J.F.UNSPECIFIEDUNSPECIFIED
Shibata, K.UNSPECIFIEDUNSPECIFIED
Smale, D.UNSPECIFIEDUNSPECIFIED
Teyssèdre, H.UNSPECIFIEDUNSPECIFIED
Tian, W.UNSPECIFIEDUNSPECIFIED
Yamashita, Y.UNSPECIFIEDUNSPECIFIED
Date:2010
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:115
DOI:10.1029/2010JD014271
Page Range:pp. 1-18
ISSN:0148-0227
Status:Published
Keywords:ozone hole, Southern Hemisphere climate change, CCMVal-2
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Freund, Jana
Deposited On:22 Nov 2010 17:53
Last Modified:15 Apr 2016 09:12

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