Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029077 |
Changes in the Relationship Between the Interannual Variation of Eurasian Snow Cover and Spring SAT Over Eastern Eurasia | |
Wang, Min1; Jia, Xiao Jing1; Ge, Jing Wen2; Qian, Qi Feng1 | |
2019-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:2页码:468-487 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Changes in the relationship between interannual variation of spring (March-April-May) surface air temperature (SAT) over eastern Eurasia (SAT_EA) and Eurasian snow during 1972-2009 are investigated. The results show that the interannual variation in SAT_EA is significantly correlated with Eurasian snow cover anomalies (SCA) over two key regions, which include the western (SCAW) and eastern (SCAE) parts of the Eurasian continent. A pronounced climate shift of SAT_EA is observed around the late 1980s, and therefore, the data are divided into two subperiods, that is, 1972-1987 (P1) and 1988-2009 (P2). Examinations show that the relationship between SAT_EA and SCAW is impacted by the Arctic Oscillation. In contrast, the relationship between SCAE and the SAT_EA is Arctic Oscillation independent and is significantly increased from P1 to P2. Further analysis shows that the increased correlation between SAT_EA and SCAE from P1 to P2 cannot be well explained by the snow-related surface heat flux. A wave train-like anomalous circulation plays an important role in enhancing their relationship through intensified wind-induced heat advection in P2, which causes reduced snow and increased SAT_EA. A lead-lag regression analysis of the SCAE and the circulation anomalies indicates that the changes of the SCAE and SAT_EA are mainly responses to atmospheric circulation anomalies that occur 2months before spring. Numerical experiments that use a linear baroclinic model indicate that the snow anomalies around Lake Baikal may impact the variation of SAT_EA through modulating atmospheric circulation over the East Asia-North Pacific area. |
英文关键词 | snow cover extent spring SAT interannual variation interdecadal change Eurasian continent |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000458845300003 |
WOS关键词 | SUMMER MONSOON CIRCULATION ; QINGHAI-XIZANG PLATEAU ; SURFACE-TEMPERATURE ; INTERDECADAL CHANGE ; NORTH-ATLANTIC ; SOVIET SNOW ; RAINFALL ; CLIMATE ; WINTER ; DEPTH |
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/33066 |
专题 | 气候变化 |
作者单位 | 1.Zhejiang Univ, Sch Earth Sci, Hangzhou, Zhejiang, Peoples R China; 2.Zhejiang Meteorol Bur, Zhejiang Climate Ctr, Hangzhou, Zhejiang, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Min,Jia, Xiao Jing,Ge, Jing Wen,et al. Changes in the Relationship Between the Interannual Variation of Eurasian Snow Cover and Spring SAT Over Eastern Eurasia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(2):468-487. |
APA | Wang, Min,Jia, Xiao Jing,Ge, Jing Wen,&Qian, Qi Feng.(2019).Changes in the Relationship Between the Interannual Variation of Eurasian Snow Cover and Spring SAT Over Eastern Eurasia.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(2),468-487. |
MLA | Wang, Min,et al."Changes in the Relationship Between the Interannual Variation of Eurasian Snow Cover and Spring SAT Over Eastern Eurasia".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.2(2019):468-487. |
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