DOI: 10.1007/s00382-016-3089-4
Scopus记录号: 2-s2.0-84961588305
论文题名: Eurasian snow cover variability in relation to warming trend and Arctic Oscillation
作者: Yeo S.-R. ; Kim W.M. ; Kim K.-Y.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期: 2017-01-02 起始页码: 499
结束页码: 511
语种: 英语
英文关键词: Arctic Oscillation
; Cyclostationary EOF
; Eurasian snow cover extent
; Global warming
英文摘要: Two distinct modes of snow cover variability over Eurasia are investigated using cyclostationary empirical orthogonal function (CSEOF) analysis. The first mode of Eurasian snow cover extent (SCE) represents a seasonally asymmetric trend between spring and fall. The spring SCE shows a decreasing trend, while the fall SCE particularly in October exhibits a clear increasing trend. This seasonally asymmetric trend of SCE is closely linked to Arctic sea ice decline accompanied by warming in the northern Eurasia. The decreased SCE during spring is primarily attributed to the warm air temperature anomalies, while the increased SCE in October results from the loss of sea ice and the ensuing moisture transport to the atmosphere, which is realized as increased snow in October. The second mode of Eurasian SCE, on the other hand, is closely related to Arctic Oscillation (AO), which is a dominant mode of Northern Hemisphere atmospheric variability. The snow cover variability over Europe during winter is largely affected by AO variability, rather than the warming signal represented by the first CSEOF mode. Detailed descriptions of the two distinct modes of Eurasian SCE and their interactions with oceanic and atmospheric variables are presented along with possible implications for future climate. © 2016, Springer-Verlag Berlin Heidelberg. 资助项目: Ewha, Ewha Womans University
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53400
Appears in Collections: 过去全球变化的重建
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作者单位: Climate Prediction Team, APEC Climate Center, Busan, South Korea; Center for Climate/Environment Change Prediction Research, Ewha Womans University, Seoul, South Korea; School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Recommended Citation:
Yeo S.-R.,Kim W.M.,Kim K.-Y.. Eurasian snow cover variability in relation to warming trend and Arctic Oscillation[J]. Climate Dynamics,2017-01-01,48(2017-01-02)