Eurasian snow cover variability and Northern Hemisphere climate predictability

被引:317
作者
Cohen, J [1 ]
Entekhabi, D [1 ]
机构
[1] MIT, Cambridge, MA 02139 USA
关键词
D O I
10.1029/1998GL900321
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
We present observational evidence demonstrating dynamic interactions and feedbacks between multi-seasonal snow cover and winter-time circulation anomalies over mid-high latitudes. The cooling effect of snow cover is associated with a strengthened and more expansive Siberian high with more frequent, topographically constrained intrusions west and north. Early-season snow cover variability leads to altered general circulation patterns consistent with the dominant mode of winter variability observed in the Northern Hemisphere troposphere. The implications of the surface-atmosphere coupling for seasonal to interannual predictability are also discussed.
引用
收藏
页码:345 / 348
页数:4
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