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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. Wiley. 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.

Item URL in elib:https://elib.dlr.de/66144/
Document Type:Article
Title:Chemistry-climate model simulations of spring Antarctic ozone
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Austin, JohnNOAAUNSPECIFIED
Struthers, H.Univ. of Stockholm, Stockholm, SUNSPECIFIED
Scinocca, J.Univ. of Victoria, Victoria, CNDUNSPECIFIED
Plummer, D.A.Environment Canada, Toronto, CNDUNSPECIFIED
Akiyoshi, H.National Inst. for Environmental Studies, Tsukuba, JUNSPECIFIED
Baumgaertner, A.J.G.MPI für Chemie, MainzUNSPECIFIED
Bekki, S.INSU, Paris, FUNSPECIFIED
Bodeker, G.E.Bodeker Scientific, Alexandra, NZUNSPECIFIED
Braesicke, P.Cambridge University, Cambridge, UKUNSPECIFIED
Brühl, C.MPI für Chemie, MainzUNSPECIFIED
Butchart, N.Met Office, Exeter, UKUNSPECIFIED
Chipperfield, M.P.Univ. of Leeds, Leeds, UKUNSPECIFIED
Cugnet, D.INSU, Paris, FUNSPECIFIED
Dameris, MartinDLR-PAUNSPECIFIED
Dhomse, S.Univ. of Leeds, Leeds, UKUNSPECIFIED
Frith, S.NASA, Maryland, USAUNSPECIFIED
Garny, H.DLR-PAUNSPECIFIED
Gettelman, A.NCAR, Boulder, CO, USAUNSPECIFIED
Hardiman, S.C.Met Office, Exeter, UKUNSPECIFIED
Jöckel, PatrickDLR-PAUNSPECIFIED
Kinnison, D.UNSPECIFIEDUNSPECIFIED
Kubin, A.UNSPECIFIEDUNSPECIFIED
Lamarque, J.F.UNSPECIFIEDUNSPECIFIED
Langematz, U.UNSPECIFIEDUNSPECIFIED
Mancini, E.UNSPECIFIEDUNSPECIFIED
Marchand, M.UNSPECIFIEDUNSPECIFIED
Michou, M.UNSPECIFIEDUNSPECIFIED
Morgenstern, O.UNSPECIFIEDUNSPECIFIED
Nakamura, T.UNSPECIFIEDUNSPECIFIED
Nielsen, J.E.UNSPECIFIEDUNSPECIFIED
Pitari, G.UNSPECIFIEDUNSPECIFIED
Pyle, J.UNSPECIFIEDUNSPECIFIED
Rozanov, E.UNSPECIFIEDUNSPECIFIED
Shepherd, T.G.UNSPECIFIEDUNSPECIFIED
Shibata, K.UNSPECIFIEDUNSPECIFIED
Smale, D.UNSPECIFIEDUNSPECIFIED
Teyssèdre, H.UNSPECIFIEDUNSPECIFIED
Yamashita, Y.UNSPECIFIEDUNSPECIFIED
Date:2010
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:115
DOI :10.1029/2009JD013577
Page Range:pp. 1-21
Publisher:Wiley
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: Dameris, Prof. Dr. rer. nat. Martin
Deposited On:12 Nov 2010 15:55
Last Modified:31 Jul 2019 19:29

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