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DOI | 10.1007/s00382-017-3727-5 |
Interannual tropical Pacific sea surface temperature anomalies teleconnection to Northern Hemisphere atmosphere in November | |
King, Martin P.1,2; Herceg-Bulic, Ivana3; Kucharski, Fred4; Keenlyside, Noel2,5 | |
2018-03-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:1881-1899 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; Croatia; Italy |
英文摘要 | We investigate the Northern Hemisphere atmospheric circulation anomalies associated to the sea surface temperature (SST) anomalies that are related to the eastern-Pacific and central-Pacific El Nino-Southern Oscillations in the late autumn (November). This research is motivated by the need for improving understanding of the autumn climate conditions which can impact on winter climate, as well as the relative lack of study on the boreal autumn climate processes compared to winter. Using reanalysis and SST datasets available from the late nineteenth century through the recent years, we found that there are two major atmospheric responses; one is a hemispheric-wide wave number-4 pattern, another has a more annular pattern. Both of these project on the East Atlantic pattern (southward-shifted North Atlantic Oscillation) in the Atlantic sector. Which of the patterns is active is suggested to depend on the background mean flow, with the annular anomaly active in the most recent decades, while the wave-4 pattern in the decades before. This switch is associated with a change of correlation sign in the North Pacific. We discuss the robustness of this finding. The ability of two atmospheric general circulation models (ICTP-AGCM and ECHAM-AGCM) to reproduce the teleconnections is also examined. Evidence provided shows that the wave-4 pattern and the East Atlantic pattern signals can be reproduced by the models, while the shift from this to an annular response for the recent years is not found conclusively. |
英文关键词 | ENSO teleconnections Boreal autumn climate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426707100023 |
WOS关键词 | WINTER ENSO TELECONNECTIONS ; REANALYSIS PROJECT ; CIRCULATION ; CLIMATE ; PREDICTION ; ATLANTIC ; FLOW ; ICE ; OSCILLATION ; VARIABILITY |
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/36093 |
专题 | 气候变化 |
作者单位 | 1.Uni Res Climate, Nygardsgaten 112, N-5008 Bergen, Norway; 2.Bjerknes Ctr Climate Res, Bergen, Norway; 3.Univ Zagreb, Dept Geophys, Fac Sci, Zagreb, Croatia; 4.Abdus Salam Int Ctr Theoret Phys, Earth Syst Phys, Trieste, Italy; 5.Univ Bergen, Inst Geophys, Bergen, Norway |
推荐引用方式 GB/T 7714 | King, Martin P.,Herceg-Bulic, Ivana,Kucharski, Fred,et al. Interannual tropical Pacific sea surface temperature anomalies teleconnection to Northern Hemisphere atmosphere in November[J]. CLIMATE DYNAMICS,2018,50:1881-1899. |
APA | King, Martin P.,Herceg-Bulic, Ivana,Kucharski, Fred,&Keenlyside, Noel.(2018).Interannual tropical Pacific sea surface temperature anomalies teleconnection to Northern Hemisphere atmosphere in November.CLIMATE DYNAMICS,50,1881-1899. |
MLA | King, Martin P.,et al."Interannual tropical Pacific sea surface temperature anomalies teleconnection to Northern Hemisphere atmosphere in November".CLIMATE DYNAMICS 50(2018):1881-1899. |
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