Arctic amplification decreases temperature variance in northern mid- to high-latitudes

James A. Screen ()
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James A. Screen: College of Engineering, Mathematics and Physical Sciences, University of Exeter

Nature Climate Change, 2014, vol. 4, issue 7, 577-582

Abstract: Arctic amplification is thought to be altering the polar jet stream and increasing Northern Hemisphere mid-latitude temperature variability. This study investigates cold extremes in the mid-latitudes and shows that subseasonal cold-season variability has significantly decreased in recent decades. The reduction in variability is partly due to more rapid warming of northerly winds and associated cold days, relative to southerly winds and warm days.

Date: 2014
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DOI: 10.1038/nclimate2268

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