Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4182-7 |
Recent intensified impact of December Arctic Oscillation on subsequent January temperature in Eurasia and North Africa | |
He, Shengping1,2; Wang, Huijun3,4,5; Gao, Yongqi5,6; Li, Fei3,7 | |
2019 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:1077-1094 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; Peoples R China |
英文摘要 | This study reveals an intensified influence of December Arctic Oscillation (AO) on the subsequent January surface air temperature (SAT) over Eurasia and North Africa in recent decades. The connection is statistically insignificant during 1957/58-1979/80 (P1), which becomes statistically significant during 1989/90-2011/12 (P2). The possible causes are further investigated. Associated with positive December AO during P2, significant anomalous anticyclone emerges over the central North Atlantic, which is accompanied with significant westerly and easterly anomalies along 45 degrees-65 degrees N and 20 degrees-40 degrees N, respectively. This favors the significant influence of December AO on the subsequent January SAT and atmospheric circulation over Eurasia and North Africa via triggering the North Atlantic tripole sea surface temperature (SST) anomaly that persists into the subsequent January. By contrast, the December AO-related anomalous anticyclone during P1 is weak and is characterized by two separate centers located in the eastern and western North Atlantic. Correspondingly, the westerly and easterly anomalies over the North Atlantic Ocean are weak and the-related tripole SST anomaly is not well formed, unfavorable for the persistent impact of the December AO into the subsequent January. Further analyses indicate that the different anomalous anticyclone associated with the December AO over the North Atlantic may be induced by the strengthened synoptic-scale eddy feedbacks over the North Atlantic, which may be related to the interdecadal intensification of the storm track activity. Additionally, the planetary stationary wave related to the December AO propagates from surface into upper stratosphere at mid-latitudes during P2, which further propagates downward to the troposphere and causes anomalous atmospheric circulation in the subsequent January. |
英文关键词 | Arctic Oscillation Planetary waves Storm track Interdecadal change |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460619200060 |
WOS关键词 | HEMISPHERE ANNULAR MODE ; ASIAN WINTER MONSOON ; SEA-ICE COVER ; PART I ; ATLANTIC OSCILLATION ; SURFACE-TEMPERATURE ; OCEAN ; STRATOSPHERE ; FREQUENCY ; ENSO |
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/36230 |
专题 | 气候变化 |
作者单位 | 1.Univ Bergen, Inst Geophys, N-5007 Bergen, Norway; 2.Bjerknes Ctr Climate Res, N-5007 Bergen, Norway; 3.Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China; 4.Chinese Acad Sci, Climate Change Res Ctr, Beijing 100029, Peoples R China; 5.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China; 6.Bjerknes Ctr Climate Res, Nansen Environm & Remote Sensing Ctr, N-5006 Bergen, Norway; 7.NILU Norwegian Inst Air Res, N-2007 Kjeller, Norway |
推荐引用方式 GB/T 7714 | He, Shengping,Wang, Huijun,Gao, Yongqi,et al. Recent intensified impact of December Arctic Oscillation on subsequent January temperature in Eurasia and North Africa[J]. CLIMATE DYNAMICS,2019,52:1077-1094. |
APA | He, Shengping,Wang, Huijun,Gao, Yongqi,&Li, Fei.(2019).Recent intensified impact of December Arctic Oscillation on subsequent January temperature in Eurasia and North Africa.CLIMATE DYNAMICS,52,1077-1094. |
MLA | He, Shengping,et al."Recent intensified impact of December Arctic Oscillation on subsequent January temperature in Eurasia and North Africa".CLIMATE DYNAMICS 52(2019):1077-1094. |
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