DOI: 10.1007/s00382-015-2952-z
Scopus记录号: 2-s2.0-84961589895
论文题名: A stable snow–atmosphere coupled mode
作者: Zhao L. ; Zhu Y. ; Liu H. ; Liu Z. ; Liu Y. ; Li X. ; Chen Z.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期: 2017-07-08 起始页码: 2085
结束页码: 2104
语种: 英语
英文关键词: Antarctic oscillation
; Arctic oscillation
; EOF analysis
; Siberia high
; Sliding correlation
; SNOW
; Snow–atmosphere coupling
英文摘要: Snow is both an important lower boundary forcing of the atmosphere and a response to atmospheric forcing in the extratropics. It is still unclear whether a stable snow–atmosphere coupled mode exists in the extratropics, like the ENSO in the tropics. Using Sliding Correlation analysis over Any Window, the present study quantitatively evaluates the stability of coupling relationships between the major modes of winter snow over the Northern Hemisphere and the winter atmospheric Arctic Oscillation (AO), the Antarctic Oscillation (AAO) and the Siberian High over the period 1872–2010, and discusses their possible relationships for different seasons. Results show that the first mode of the winter snow cover fraction and the winter AO together constitute a stable snow–atmosphere coupled mode, the SNAO. The coupled mode is stronger during recent decades than before. The snow anomaly over Europe is one key factor of the SNAO mode due to the high stability there, and the polar vortex anomaly in the atmosphere is its other key factor. The continuity of signals in the SNAO between autumn and winter is weaker than that between winter and spring. The second winter snow mode is generally stably correlated with the winter AAO and was more stable before the 1970s. The AAO signal with boreal snow has a strong continuity in seasonal transition. Generally, through these coupled modes, snow and atmosphere can interact in the same season or between different seasons: autumn snow can influence the winter atmosphere; the winter atmosphere can influence spring snow. © 2016, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53501
Appears in Collections: 过去全球变化的重建
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作者单位: 61741 Troops, Beijing, China; CMA Training Center, China Meteorological Administration, No. 46 Zhongguancun South Street, Beijing, China; College of Atmospheric Sciences, Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai, China; National Climate Center, Beijing, China; Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Institute of Space Science and Technology, Nanchang University, Nanchang, China
Recommended Citation:
Zhao L.,Zhu Y.,Liu H.,et al. A stable snow–atmosphere coupled mode[J]. Climate Dynamics,2016-01-01,47(2017-07-08)