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DOI | 10.1029/2019JD030339 |
Role of Eurasian Snow Cover in Linking Winter-Spring Eurasian Coldness to the Autumn Arctic Sea Ice Retreat | |
Zhang, Ruonan1,2,3; Sun, Chenghu4,5,6; Zhang, Renhe1,2; Li, Weijing6,7; Zuo, Jinqing6,7 | |
2019-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:16页码:9205-9221 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | An anomalous "north-south" dipole mode of the snow water equivalent (SWE) persisting from winter to spring is detected over the Eurasian mid-to-high latitudes in this study. Using observational data sets and numerical experiments of the Community Atmospheric Model (5.0), we show that this mode contributes to prolonged winter-springtime coldness in midlatitude Eurasia and is closely linked to the declining November Arctic sea ice concentration. The decline in the sea ice concentration over the Barents-Laptev Seas can induce a teleconnection pattern over the mid-to-high latitudes in the following winter, accompanied by an anomalous ridge over the Ural Mountains and an anomalous trough over Europe and East Asia. Such changes in the large-scale circulation lead to more cold surges and heavy snowfall in the midlatitudes and light snowfall in the high latitudes, forming an anomalous north-south dipole mode of the SWE, which further reduces the temperature through thermodynamic feedback. Due to seasonal memory, this SWE pattern can persist into the following spring and can lead to springtime midlatitude coldness via thermodynamic and dynamic processes. For the thermodynamic process, the anomalous SWE condition can lead to anomalous wet soil, reduced incoming surface solar radiation, and cooling air in the midlatitudes. This phenomenon induces an enhanced Siberian High and a deepened East Asian trough via the snow-Siberian high-feedback mechanism, which favors a cold spring in northern East Asia. Further analysis suggests that an empirical seasonal prediction model based on the SWE can reasonably predict East Asian spring temperature anomalies. |
英文关键词 | Eurasian snow water equivalent cold Eurasia Arctic sea ice teleconnection |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490762800018 |
WOS关键词 | ATMOSPHERIC RESPONSE ; CLIMATE RESPONSE ; MONSOON ; ASSIMILATION ; VARIABILITY ; CIRCULATION ; ANOMALIES ; IMPACTS ; MODE |
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/186154 |
专题 | 气候变化 |
作者单位 | 1.Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China; 2.Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China; 3.Shanghai Inst Pollut Control & Ecol Secur, Shanghai, Peoples R China; 4.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 5.Chinese Acad Meteorol Sci, Inst Climate Syst, Beijing, Peoples R China; 6.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; 7.China Meteorol Adm, Natl Climate Ctr, CMA NJU Joint Lab Climate Predict Studies, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Ruonan,Sun, Chenghu,Zhang, Renhe,et al. Role of Eurasian Snow Cover in Linking Winter-Spring Eurasian Coldness to the Autumn Arctic Sea Ice Retreat[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(16):9205-9221. |
APA | Zhang, Ruonan,Sun, Chenghu,Zhang, Renhe,Li, Weijing,&Zuo, Jinqing.(2019).Role of Eurasian Snow Cover in Linking Winter-Spring Eurasian Coldness to the Autumn Arctic Sea Ice Retreat.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(16),9205-9221. |
MLA | Zhang, Ruonan,et al."Role of Eurasian Snow Cover in Linking Winter-Spring Eurasian Coldness to the Autumn Arctic Sea Ice Retreat".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.16(2019):9205-9221. |
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