Evolution of Atmospheric Response to Early-Season Eurasian Snow Cover Anomalies
نویسندگان
چکیده
منابع مشابه
Atmospheric Controls on Eurasian Snow Extent
Composite analyses, based on weekly snow-cover charts, temperature, sea level pressure, cyclone tracks and a rotated PCA of daily filtered 700 hPa geopotential height are used to examine relationships between the dominant modes of low-frequency atmospheric variability and mid-winter snow extent over the Eurasian continent. Two of the circulation modes examined have been identified previously an...
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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...
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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 ...
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[1] We explore pan-Arctic climate connectivity by examining historical time series of satellite-based measurements of Eurasian snow cover extent and of observed Canadian snow water equivalent (SWE) and freshwater discharge, with a focus on the Churchill River Basin of Labrador and the Chesterfield Inlet Basin of Nunavut. Analysis of the data reveals statistically significant positive (negative)...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 2001
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(2001)129<2746:eoarte>2.0.co;2