The Role of snow cover in the Northern Hemisphere winter to summer transition

被引：11

作者：

Barriopedro, David ^{[1
]}

Garcia-Herrera, Ricardo ^{[1
]}

Hernandez, Emiliano ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Fis Tierra 2, E-28040 Madrid, Spain

来源：

GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 14期

关键词：

D O I：

10.1029/2006GL025763

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

This paper examines the role of North Hemisphere snow cover in the linkage between the winter North Atlantic Oscillation (NAO) and the summer Northern Annular Mode (NAM). This transition is partially supported by the persistence of the NAO-induced snow cover anomalies and the asymmetric thermal distribution induced by summer snow cover. We define an index of subpolar temperature difference which links winter NAO with the subsequent summer NAM. The index is also significant in the linkage between summer and winter climates and can be used as an useful predictor of the upcoming winter NAO.

引用

页数：4

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