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DOI10.1029/2018JD028685
Combined Influence of the Arctic Oscillation and the Scandinavia Pattern on Spring Surface Air Temperature Variations Over Eurasia
Chen, Shangfeng1; Wu, Renguang1,3; Song, Linye2; Chen, Wen1,3
2018-09-16
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2018
卷号123期号:17页码:9410-9429
文章类型Article
语种英语
国家Peoples R China
英文摘要

The present study investigated the joint impacts of the spring Arctic Oscillation (AO) and the Scandinavia (SCAND) teleconnection pattern on spring surface air temperature (SAT) variations over the midhigh latitude Eurasia. It is found that the connection of the spring AO (SCAND) to the first two empirical orthogonal function (EOF) modes of the spring Eurasian SAT variations depends strongly on the phase of the spring SCAND (AO) index. The EOF1 and EOF2 modes display same sign variation and tripole pattern, respectively. In the in-phase AO-SCAND years, the mid-high latitude Eurasia is covered by same sign SAT anomalies, and the spring AO and SCAND indices both have a strong (weak) connection with the EOF1 (EOF2) mode. In the out-of-phase AO-SCAND years, the SAT anomalies over the mid-high latitude Eurasia are featured by a tripole pattern, and the connection of the spring AO and SCAND indices with the EOF1 (EOF2) is insignificant (significant). Differences in the distribution of SAT anomalies between the in-phase and out-of-phase AO-SCAND years are attributed to the constructive and destructive superposition of atmospheric circulation anomalies related to the spring AO and SCAND indices. The observed joint impacts of the spring AO and SCAND on spring Eurasian SAT variations are captured by a historical simulation of the flexible global ocean-atmosphere-land system model, spectral version 2. Analysis indicates that the prediction skill of the spring Eurasian SAT variations related to the first two EOF modes is enhanced when taking both the spring AO and SCAND signals into account.


英文关键词Arctic Oscillation Scandinavia teleconnection pattern joint impact spring surface air temperature Eurasia
领域气候变化
收录类别SCI-E
WOS记录号WOS:000445617500027
WOS关键词ASIAN WINTER MONSOON ; NORTH-ATLANTIC OSCILLATION ; ATMOSPHERIC CIRCULATION ; EASTERN CHINA ; SEA-ICE ; GEOPOTENTIAL HEIGHT ; SOUTHERN CHINA ; SYSTEM MODEL ; HEAT-WAVE ; VERSION 2
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/33757
专题气候变化
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing, Peoples R China;
2.China Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China;
3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Chen, Shangfeng,Wu, Renguang,Song, Linye,et al. Combined Influence of the Arctic Oscillation and the Scandinavia Pattern on Spring Surface Air Temperature Variations Over Eurasia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(17):9410-9429.
APA Chen, Shangfeng,Wu, Renguang,Song, Linye,&Chen, Wen.(2018).Combined Influence of the Arctic Oscillation and the Scandinavia Pattern on Spring Surface Air Temperature Variations Over Eurasia.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(17),9410-9429.
MLA Chen, Shangfeng,et al."Combined Influence of the Arctic Oscillation and the Scandinavia Pattern on Spring Surface Air Temperature Variations Over Eurasia".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.17(2018):9410-9429.
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