The weakening summer circulation in the Northern Hemisphere mid-latitudes

Smaller differences and greater extremes Has recent rapid warming in the Arctic affected weather elsewhere in the world? Coumou et al. find that some key measures of atmospheric circulation in the Northern Hemisphere have weakened during the summer. This change has been caused by the reduction of th...

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Bibliographic Details
Published in:Science
Main Authors: Coumou, Dim, Lehmann, Jascha, Beckmann, Johanna
Other Authors: German Research Foundation, German Federal Ministry of Education and Research
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2015
Subjects:
North Pole
Online Access:http://dx.doi.org/10.1126/science.1261768
https://www.science.org/doi/pdf/10.1126/science.1261768
Description
Summary:Smaller differences and greater extremes Has recent rapid warming in the Arctic affected weather elsewhere in the world? Coumou et al. find that some key measures of atmospheric circulation in the Northern Hemisphere have weakened during the summer. This change has been caused by the reduction of the temperature difference between mid-latitudes and the North Pole. As summertime circulation has decreased in intensity, episodes of hot weather have become more persistent because there are fewer storms to bring cooler conditions. Science , this issue p. 324

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