Articles | Volume 9, issue 1
https://doi.org/10.5194/tc-9-53-2015
https://doi.org/10.5194/tc-9-53-2015
Research article
 | 
07 Jan 2015
Research article |  | 07 Jan 2015

Recent summer Arctic atmospheric circulation anomalies in a historical perspective

A. Belleflamme, X. Fettweis, and M. Erpicum

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Short summary
The 2007-2012 summertime circulation anomaly over the Arctic region (i.e. more high pressure systems over the Beaufort Sea, the Canadian Arctic Archipelago, and Greenland) is put in a historical perspective. While the 2007-2012 anomaly seems to be exceptional, similar circulation conditions have occurred since 1871, on the basis of five reanalyses (ERA-Interim, ERA-40, NCEP/NCAR, ERA-20C, 20CRv2). The attribution of this anomaly (natural variability or global warming) remains debatable.