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Contributions of greenhouse gas forcing and the southern annular mode to historical southern ocean surface temperature trends

Abstract:

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 ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/2017GL074964

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atmos Ocean & Planet Physics
Role:
Author
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Name:
National Science Foundation
Publisher:
Wiley
Journal:
Geophysical Research Letters More from this journal
Volume:
45
Issue:
2
Pages:
1086-1097
Publication date:
2018-01-08
Acceptance date:
2018-01-02
DOI:
EISSN:
1944-8007
ISSN:
0094-8276
Keywords:
Pubs id:
pubs:823954
UUID:
uuid:226c9519-68a1-4bdc-88e4-7a517c424a0a
Local pid:
pubs:823954
Source identifiers:
823954
Deposit date:
2018-05-01

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