气候变化领域集成服务门户(CCPortal): A stable snow-atmosphere coupled mode

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DOI	10.1007/s00382-015-2952-z
	A stable snow-atmosphere coupled mode
	Zhao, Liang; Zhu, Yuxiang; Liu, Haiwen; Liu, Zhongfang; Liu, Yanju; Li, Xiuping; Chen, Zhou
通讯作者	Zhu, YX (通讯作者)
发表日期	2016
ISSN	0930-7575
EISSN	1432-0894
起始页码	2085
结束页码	2104
卷号	47 期号:7-8
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.
关键词	HEMISPHERE ANNULAR MODE ARCTIC OSCILLATION EXTRATROPICAL CIRCULATION REANALYSIS PROJECT COVER VARIABILITY SIBERIAN SNOW PART I CLIMATE 20TH-CENTURY TRENDS
英文关键词	SNOW; Arctic oscillation; Antarctic oscillation; Siberia high; EOF analysis; Sliding correlation; Snow-atmosphere coupling
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000384549500005
来源期刊	CLIMATE DYNAMICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258841
推荐引用方式 GB/T 7714	Zhao, Liang,Zhu, Yuxiang,Liu, Haiwen,et al. A stable snow-atmosphere coupled mode[J]. 中国科学院青藏高原研究所,2016,47(7-8).
APA	Zhao, Liang.,Zhu, Yuxiang.,Liu, Haiwen.,Liu, Zhongfang.,Liu, Yanju.,...&Chen, Zhou.(2016).A stable snow-atmosphere coupled mode.CLIMATE DYNAMICS,47(7-8).
MLA	Zhao, Liang,et al."A stable snow-atmosphere coupled mode".CLIMATE DYNAMICS 47.7-8(2016).