Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3732-8 |
Impact of northern Eurasian snow cover in autumn on the warm Arctic-cold Eurasia pattern during the following January and its linkage to stationary planetary waves | |
Xu, Xinping1; He, Shengping1,2,3,4,5; Li, Fei1,2,6; Wang, Huijun1,2,3 | |
2018-03-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:1993-2006 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Norway |
英文摘要 | The connection between Eurasian snow cover (SC) in autumn and Eurasian winter mean surface air temperature (SAT) has been identified by many studies. However, some recent observations indicate that early and late winter climate sometimes shows an out-of-phase relationship, suggesting that the winter mean situation might obscure the important relationships that are relevant for scientific research and applications. This study investigates the relationship between October northern Eurasian SC (NESC; 58A degrees-68A degrees N, 30A degrees-90A degrees E) and Eurasian SAT during the winter months and finds a significant relationship only exists in January. Generally, following reduced October NESC, the East Asian trough and Ural high are intensified in January, and anomalous northeasterly winds prevail in mid-latitudes, causing cold anomalies over Eurasia. Meanwhile, anomalous southwesterly winds along the northern fringe of the Ural high favor warm anomalies in the Arctic. The dynamical mechanism for the connection between NESC in October and the warm Arctic-cold Eurasia (WACE) anomaly in January is further investigated from the perspective of quasi-stationary planetary wave activity. It is found that planetary waves with zonal wavenumber-1 (ZWN1) play a dominant role in this process. Specifically, the ZWN1 pattern of planetary-scale waves concurrent with October NESC anomaly extends from the surface to the upper-stratosphere. It persists in the stratosphere through November-December and propagates downward to the surface by the following January, making the connection between October NESC and January climate possible. Additionally, the influence of October NESC on the January WACE pattern has intensified since the early-2000s. |
英文关键词 | Snow cover Warm Arctic-cold Eurasia Stationary planetary waves Zonal wavenumber-1 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426707100029 |
WOS关键词 | SEA-ICE COVER ; SIBERIAN SNOW ; CLIMATE RESPONSE ; URAL BLOCKING ; TEMPERATURE ; AMPLIFICATION ; VARIABILITY ; OSCILLATION ; ANOMALIES ; AMERICA |
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/35513 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China; 3.Chinese Acad Sci, Climate Change Res Ctr, Beijing 100029, Peoples R China; 4.Univ Bergen, Inst Geophys, N-5007 Bergen, Norway; 5.Bjerknes Ctr Climate Res, N-5007 Bergen, Norway; 6.NILU Norwegian Inst Air Res, N-2007 Kjeller, Norway |
推荐引用方式 GB/T 7714 | Xu, Xinping,He, Shengping,Li, Fei,et al. Impact of northern Eurasian snow cover in autumn on the warm Arctic-cold Eurasia pattern during the following January and its linkage to stationary planetary waves[J]. CLIMATE DYNAMICS,2018,50:1993-2006. |
APA | Xu, Xinping,He, Shengping,Li, Fei,&Wang, Huijun.(2018).Impact of northern Eurasian snow cover in autumn on the warm Arctic-cold Eurasia pattern during the following January and its linkage to stationary planetary waves.CLIMATE DYNAMICS,50,1993-2006. |
MLA | Xu, Xinping,et al."Impact of northern Eurasian snow cover in autumn on the warm Arctic-cold Eurasia pattern during the following January and its linkage to stationary planetary waves".CLIMATE DYNAMICS 50(2018):1993-2006. |
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