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DOI | 10.1175/JCLI-D-19-0109.1 |
The Southern Ocean Sea Surface Temperature Response to Ozone Depletion: A Multimodel Comparison | |
Seviour, W. J. M.1,2; Codron, F.3; Doddridge, E. W.4; Ferreira, D.5; Gnanadesikan, A.1; Kelley, M.6; Kostov, Y.7; Marshall, J.4; Polvani, L. M.8,9; Thomas, J. L.1; Waugh, D. W.1,10 | |
2019-08-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:16页码:5107-5121 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England; France; Australia |
英文摘要 | The effect of the Antarctic ozone hole extends downward from the stratosphere, with clear signatures in surface weather patterns including a positive trend in the southern annular mode (SAM). Several recent studies have used coupled climate models to investigate the impact of these changes on Southern Ocean sea surface temperature (SST), notably motivated by the observed cooling from the late 1970s. Here we examine the robustness of these model results through comparison of both previously published and new simulations. We focus on the calculation of climate response functions (CRFs), transient responses to an instantaneous step change in ozone concentrations. The CRF for most models consists of a rapid cooling of SST followed by a slower warming trend. However, intermodel comparison reveals large uncertainties, such that even the sign of the impact of ozone depletion on historical SST, when reconstructed from the CRF, remains unconstrained. Comparison of these CRFs with SST responses to a hypothetical step change in the SAM, inferred through lagged linear regression, shows broadly similar results. Causes of uncertainty are explored by examining relationships between model climatologies and their CRFs. The intermodel spread in CRFs can be reproduced by varying a single subgrid-scale mixing parameter within a single model. Antarctic sea ice CRFs are also calculated: these do not generally exhibit the two-time-scale behavior of SST, suggesting a complex relationship between the two. Finally, by constraining model climatology-response relationships with observational values, we conclude that ozone depletion is unlikely to have been the primary driver of the observed SST cooling trend. |
英文关键词 | Southern Ocean Annular mode Atmosphere-ocean interaction Sea surface temperature Ozone Coupled models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476665300002 |
WOS关键词 | STRATOSPHERIC OZONE ; TRANSIENT-RESPONSE ; ANNULAR MODE ; ICE RESPONSE ; CLIMATE ; CIRCULATION ; ATMOSPHERE ; TRENDS ; SALINITY ; HOLE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185730 |
专题 | 气候变化 |
作者单位 | 1.Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA; 2.Univ Bristol, Sch Geog Sci, Bristol, Avon, England; 3.Sorbonne Univ, CNRS, LOCEAN, IRD,MNHN,IPSL, Paris, France; 4.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA; 5.Univ Reading, Dept Meteorol, Reading, Berks, England; 6.NASA, Goddard Inst Space Studies, New York, NY 10025 USA; 7.Univ Oxford, Dept Phys, Oxford, England; 8.Columbia Univ, Appl Phys & Appl Math Dept, New York, NY USA; 9.Columbia Univ, Lamont Doherty Earth Observ, Dept Earth & Environm Sci, Palisades, NY USA; 10.Univ New South Wales, Sch Math, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Seviour, W. J. M.,Codron, F.,Doddridge, E. W.,et al. The Southern Ocean Sea Surface Temperature Response to Ozone Depletion: A Multimodel Comparison[J]. JOURNAL OF CLIMATE,2019,32(16):5107-5121. |
APA | Seviour, W. J. M..,Codron, F..,Doddridge, E. W..,Ferreira, D..,Gnanadesikan, A..,...&Waugh, D. W..(2019).The Southern Ocean Sea Surface Temperature Response to Ozone Depletion: A Multimodel Comparison.JOURNAL OF CLIMATE,32(16),5107-5121. |
MLA | Seviour, W. J. M.,et al."The Southern Ocean Sea Surface Temperature Response to Ozone Depletion: A Multimodel Comparison".JOURNAL OF CLIMATE 32.16(2019):5107-5121. |
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