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DOI | 10.1007/s00382-016-3283-4 |
Impact of observed North Atlantic multidecadal variations to European summer climate: a linear baroclinic response to surface heating | |
Ghosh, Rohit1; Mueller, Wolfgang A.2; Baehr, Johanna3; Bader, Juergen2 | |
2017-06-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | The observed prominent multidecadal variations in the central to eastern (C-E) European summer temperature are closely related to the Atlantic multidecadal variability (AMV). Using the Twentieth Century Reanalysis project version 2 data for the period of 1930-2012, we present a mechanism by which the multidecadal variations in the C-E European summer temperature are associated to a linear baroclinic atmospheric response to the AMV-related surface heat flux. Our results suggest that over the north-western Atlantic, the positive heat flux anomaly triggers a surface baroclinic pressure response to diabatic heating with a negative surface pressure anomaly to the east of the heat source. Further downstream, this response induces an east-west wave-like pressure anomaly. The east-west wave-like response in the sea level pressure structure, to which we refer as North-Atlantic-European East West (NEW) mode, is independent of the summer North Atlantic Oscillation and is the principal mode of variations during summer over the Euro-Atlantic region at multidecadal time scales. The NEW mode causes warming of the C-E European region by creating an atmospheric blocking-like situation. Our findings also suggest that this NEW mode is responsible for the multidecadal variations in precipitation over the British Isles and north-western Europe. |
英文关键词 | Atlantic multidecadal variability Summer Europe Linear baroclinic response |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402122200006 |
WOS关键词 | ATMOSPHERIC RESPONSE ; SST ANOMALIES ; OCEAN ; REANALYSIS ; TEMPERATURE ; VARIABILITY ; CIRCULATION ; PREDICTIONS ; PATTERNS |
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/36021 |
专题 | 气候变化 |
作者单位 | 1.Max Planck Inst Meteorol, Int Max Planck Res Sch Earth Syst Modelling, Hamburg, Germany; 2.Max Planck Inst Meteorol, Hamburg, Germany; 3.Univ Hamburg, Inst Oceanog, Hamburg, Germany |
推荐引用方式 GB/T 7714 | Ghosh, Rohit,Mueller, Wolfgang A.,Baehr, Johanna,et al. Impact of observed North Atlantic multidecadal variations to European summer climate: a linear baroclinic response to surface heating[J]. CLIMATE DYNAMICS,2017,48(11). |
APA | Ghosh, Rohit,Mueller, Wolfgang A.,Baehr, Johanna,&Bader, Juergen.(2017).Impact of observed North Atlantic multidecadal variations to European summer climate: a linear baroclinic response to surface heating.CLIMATE DYNAMICS,48(11). |
MLA | Ghosh, Rohit,et al."Impact of observed North Atlantic multidecadal variations to European summer climate: a linear baroclinic response to surface heating".CLIMATE DYNAMICS 48.11(2017). |
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