Role of Eurasian Snow Cover in Linking Winter‐Spring Eurasian Coldness to the Autumn Arctic Sea Ice Retreat
نویسندگان
چکیده
منابع مشابه
Forcing of the Arctic Oscillation by Eurasian snow cover
1 Throughout much of the latter half of the 20th century, the dominant mode of North2 ern Hemisphere (NH) extratropical wintertime circulation variability−the Arctic Oscillation 3 (AO)−exhibited a positive trend, with decreasing high-latitude sea-level pressure (SLP) and 4 increasing mid-latitude SLP. General circulation models (GCMs) show this trend is related 5 to several factors, including N...
متن کاملOn the observed connection between Arctic sea ice and Eurasian snow in relation to the winter NAO
Many recent studies reveal that sea ice concentration (SIC) in the eastern Arctic and snow cover extent (SCE) over central Eurasia in late autumn are potential predictors of the winter North Atlantic Oscillation (NAO). We used maximum covariance analysis (MCA) to investigate the links between autumn SIC in the Barents-Kara Seas (BK) and SCE over Eurasia (EUR) with winter (DJF) sea level pressur...
متن کاملIs Eurasian snow cover in October a reliable statistical
5 In this study, the recently found lead-lag relationship between Eurasian snow cover 6 increase in October and wintertime precipitation totals on the Iberian Peninsula is re7 visited and generalized to a broad range of atmospheric variables on the synoptic and 8 local scale. To this aim, a robust (resistant to outliers) method for calculating the index 9 value for Eurasian snow cover increase ...
متن کاملThe Role of Linear Interference in Northern Annular Mode Variability Associated with Eurasian Snow Cover Extent
One of the outstanding questions regarding the observed relationship between October Eurasian snow cover anomalies and the boreal winter northern annular mode (NAM) is what causes the multiple-week lag between positive Eurasian snow cover anomalies in October and the associated peak in Rossby wave activity flux from the troposphere to the stratosphere in December. This study explores the follow...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 2019
ISSN: 2169-897X,2169-8996
DOI: 10.1029/2019jd030339