Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074964 |
Contributions of Greenhouse Gas Forcing and the Southern Annular Mode to Historical Southern Ocean Surface Temperature Trends | |
Kostov, Yavor1; Ferreira, David2; Armour, Kyle C.3,4; Marshall, John5 | |
2018-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:2页码:1086-1097 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | We examine the 1979-2014 Southern Ocean (SO) sea surface temperature (SST) trends simulated in an ensemble of coupled general circulation models and evaluate possible causes of the models' inability to reproduce the observed 1979-2014 SO cooling. For each model we estimate the response of SO SST to step changes in greenhouse gas (GHG) forcing and in the seasonal indices of the Southern Annular Mode (SAM). Using these step-response functions, we skillfully reconstruct the models' 1979-2014 SO SST trends. Consistent with the seasonal signature of the Antarctic ozone hole and the seasonality of SO stratification, the summer and fall SAM exert a large impact on the simulated SO SST trends. We further identify conditions that favor multidecadal SO cooling: (1) a weak SO warming response to GHG forcing, (2) a strong multidecadal SO cooling response to a positive SAM trend, and (3) a historical SAM trend as strong as in observations. |
英文关键词 | Southern Ocean CMIP5 Southern Annular Mode greenhouse gas forcing climate variability ozone forcing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425514300067 |
WOS关键词 | ANTARCTIC SEA-ICE ; HEMISPHERE CLIMATE-CHANGE ; CMIP5 MODELS ; TRANSIENT-RESPONSE ; STRATOSPHERIC OZONE ; ATMOSPHERE MODEL ; CARBON-DIOXIDE ; CIRCULATION ; WINDS ; BIAS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28055 |
专题 | 气候变化 |
作者单位 | 1.Univ Oxford, Dept Phys, Oxford, England; 2.Univ Reading, Dept Meteorol, Reading, Berks, England; 3.Univ Washington, Sch Oceanog, Seattle, WA 98195 USA; 4.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 5.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA |
推荐引用方式 GB/T 7714 | Kostov, Yavor,Ferreira, David,Armour, Kyle C.,et al. Contributions of Greenhouse Gas Forcing and the Southern Annular Mode to Historical Southern Ocean Surface Temperature Trends[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(2):1086-1097. |
APA | Kostov, Yavor,Ferreira, David,Armour, Kyle C.,&Marshall, John.(2018).Contributions of Greenhouse Gas Forcing and the Southern Annular Mode to Historical Southern Ocean Surface Temperature Trends.GEOPHYSICAL RESEARCH LETTERS,45(2),1086-1097. |
MLA | Kostov, Yavor,et al."Contributions of Greenhouse Gas Forcing and the Southern Annular Mode to Historical Southern Ocean Surface Temperature Trends".GEOPHYSICAL RESEARCH LETTERS 45.2(2018):1086-1097. |
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