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Chemistry-climate model simulations of spring Antarctic ozone

Austin, John and Struthers, H. and Scinocca, J. and Plummer, D.A. and Akiyoshi, H. and Baumgaertner, A.J.G. and Bekki, S. and Bodeker, G.E. and Braesicke, P. and Brühl, C. and Butchart, N. and Chipperfield, M.P. and Cugnet, D. and Dameris, Martin and Dhomse, S. and Frith, S. and Garny, H. and Gettelman, A. and Hardiman, S.C. and Jöckel, Patrick and Kinnison, D. and Kubin, A. and Lamarque, J.F. and Langematz, U. and Mancini, E. and Marchand, M. and Michou, M. and Morgenstern, O. and Nakamura, T. and Nielsen, J.E. and Pitari, G. and Pyle, J. and Rozanov, E. and Shepherd, T.G. and Shibata, K. and Smale, D. and Teyssèdre, H. and Yamashita, Y. (2010) Chemistry-climate model simulations of spring Antarctic ozone. Journal of Geophysical Research, 115 (D00M11), pp. 1-21. DOI: 10.1029/2009JD013577.

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Official URL: http://www.agu.org/journals/jd/jd1021/2009JD013577/2009JD013577.pdf

Abstract

Coupled chemistry�climate model simulations covering the recent past and continuing throughout the 21st century have been completed with a range of different models. Common forcings are used for the halogen amounts and greenhouse gas concentrations, as expected under the Montreal Protocol (with amendments) and Intergovernmental Panel on Climate Change A1b Scenario. The simulations of the Antarctic ozone hole are compared using commonly used diagnostics: the minimum ozone, the maximum area of ozone below 220 DU, and the ozone mass deficit below 220 DU. Despite the fact that the processes responsible for ozone depletion are reasonably well understood, a wide range of results is obtained. Comparisons with observations indicate that one of the reasons for the model underprediction in ozone hole area is the tendency for models to underpredict, by up to 35%, the area of low temperatures responsible for polar stratospheric cloud formation. Models also typically have species gradients that are too weak at the edge of the polar vortex, suggesting that there is too much mixing of air across the vortex edge. Other models show a high bias in total column ozone which restricts the size of the ozone hole (defined by a 220 DU threshold). The results of those models which agree best with observations are examined in more detail. For several models the ozone hole does not disappear this century but a small ozone hole of up to three million square kilometers continues to occur in most springs even after 2070.

Document Type:Article
Title:Chemistry-climate model simulations of spring Antarctic ozone
Authors:
AuthorsInstitution or Email of Authors
Austin, JohnNOAA
Struthers, H.Univ. of Stockholm, Stockholm, S
Scinocca, J.Univ. of Victoria, Victoria, CND
Plummer, D.A.Environment Canada, Toronto, CND
Akiyoshi, H.National Inst. for Environmental Studies, Tsukuba, J
Baumgaertner, A.J.G.MPI für Chemie, Mainz
Bekki, S.INSU, Paris, F
Bodeker, G.E.Bodeker Scientific, Alexandra, NZ
Braesicke, P.Cambridge University, Cambridge, UK
Brühl, C.MPI für Chemie, Mainz
Butchart, N.Met Office, Exeter, UK
Chipperfield, M.P.Univ. of Leeds, Leeds, UK
Cugnet, D.INSU, Paris, F
Dameris, MartinDLR-PA
Dhomse, S.Univ. of Leeds, Leeds, UK
Frith, S.NASA, Maryland, USA
Garny, H.DLR-PA
Gettelman, A.NCAR, Boulder, CO, USA
Hardiman, S.C.Met Office, Exeter, UK
Jöckel, PatrickDLR-PA
Kinnison, D.UNSPECIFIED
Kubin, A.UNSPECIFIED
Lamarque, J.F.UNSPECIFIED
Langematz, U.UNSPECIFIED
Mancini, E.UNSPECIFIED
Marchand, M.UNSPECIFIED
Michou, M.UNSPECIFIED
Morgenstern, O.UNSPECIFIED
Nakamura, T.UNSPECIFIED
Nielsen, J.E.UNSPECIFIED
Pitari, G.UNSPECIFIED
Pyle, J.UNSPECIFIED
Rozanov, E.UNSPECIFIED
Shepherd, T.G.UNSPECIFIED
Shibata, K.UNSPECIFIED
Smale, D.UNSPECIFIED
Teyssèdre, H.UNSPECIFIED
Yamashita, Y.UNSPECIFIED
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:10.1029/2009JD013577
Page Range:pp. 1-21
Status:Published
Keywords:stratosphere, chemistry-climate feedback, ozone hole
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: Prof. Dr. rer. nat. Martin Dameris
Deposited On:12 Nov 2010 15:55
Last Modified:23 Jan 2014 11:36

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