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DOI | 10.1007/s00382-019-04738-9 |
Interannual variability of surface air temperature over mid-high latitudes of Eurasia during boreal autumn | |
Chen, Shangfeng1; Wu, Renguang1,3,4; Song, Linye2; Chen, Wen1,3 | |
2019-08-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:1805-1821 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | This study analyzes the dominant modes of interannual variability of surface air temperature (SAT) during boreal autumn over the mid-high latitudes of Eurasia and investigates their associations with snow cover, atmospheric circulation and sea surface temperature (SST). The first, second and third empirical orthogonal function (EOF) mode of autumn SAT anomalies displays same-sign distribution, an east-west dipole pattern and a south-north dipole pattern, respectively. Analysis of surface heat fluxes indicates that snow changes explain only small patches of SAT anomalies related to the first two EOFs via altering surface shortwave radiation. Atmospheric circulation anomalies have important contributions to the formation of SAT anomalies. Southerly (northerly) wind anomalies generally favor positive (negative) SAT anomalies via bringing warmer (colder) air from lower (higher) latitudes. The atmospheric circulation anomalies related to the first EOF mode are attributed to a combination of the Arctic Oscillation (AO) and the Scandinavia pattern and those related to the second EOF mode have a close relation with the East Atlantic/West Russian (EAWR) and circumglobal teleconnection (CGT) patterns. Formation of the atmospheric circulation anomalies related to the third EOF mode is partly related to the Arctic sea ice change around the Barents-Kara Seas. SST anomalies have little contribution to the atmospheric circulation anomalies associated with the first three EOF modes of Eurasian autumn SAT interannual variations. Hindcast skill of the SAT anomalies related to the first (second) EOF mode is improved when taking both the AO and Scandinavia (EAWR and CGT) patterns into account. |
英文关键词 | Surface air temperature Boreal autumn Atmospheric teleconnection pattern Snow Arctic sea ice |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000475558800033 |
WOS关键词 | ASIAN WINTER MONSOON ; ARCTIC SEA-ICE ; ATMOSPHERIC CIRCULATION ; TROPICAL ATLANTIC ; DOMINANT-MODES ; EAST-ASIA ; OSCILLATION ; NORTHERN ; SUMMER ; SNOW |
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/185427 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100029, 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; 4.Zhejiang Univ, Sch Earth Sci, Hangzhou, Zhejiang, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Shangfeng,Wu, Renguang,Song, Linye,et al. Interannual variability of surface air temperature over mid-high latitudes of Eurasia during boreal autumn[J]. CLIMATE DYNAMICS,2019,53:1805-1821. |
APA | Chen, Shangfeng,Wu, Renguang,Song, Linye,&Chen, Wen.(2019).Interannual variability of surface air temperature over mid-high latitudes of Eurasia during boreal autumn.CLIMATE DYNAMICS,53,1805-1821. |
MLA | Chen, Shangfeng,et al."Interannual variability of surface air temperature over mid-high latitudes of Eurasia during boreal autumn".CLIMATE DYNAMICS 53(2019):1805-1821. |
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