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

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Barriopedro Cepero, David and García Herrera, Ricardo and Hernández Martín, Emiliano (2006) The role of snow cover in the Northern Hemisphere winter to summer transition. Geophysical research letters, 33 (14). ISSN 0094-8276

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Official URL: http://dx.doi.org/10.1029/2006GL025763




Abstract

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.


Item Type:Article
Additional Information:

© 2006 by the American Geophysical Union. The authors would like to thank two anonymous reviewers for their valuable comments. The Spanish Science and Technology Department supported this study trough the VALIMOD (Climatic VALIdation of Conceptual MODels) project (REN2002-04558-C04-01).

Uncontrolled Keywords:Atlantic Oscillation, Annular Mode, Nao, Circulation, Temperatures, Climate, Impact, Extent
Subjects:Sciences > Physics > Astrophysics
Sciences > Physics > Astronomy
Sciences > Physics > Atmospheric physics
ID Code:24714
Deposited On:19 Mar 2014 10:18
Last Modified:10 Dec 2018 15:05

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