Journal
GLOBAL AND PLANETARY CHANGE
Volume 151, Issue -, Pages 92-100Publisher
ELSEVIER
DOI: 10.1016/j.gloPlacha.2016.08.014
Keywords
Mediterranean climate; Decadal variability; 20th century reanalysis; Weather regimes; Atmospheric circulation
Funding
- Italian Ministry of Education, University and Research
- Italian Ministry of Environment, Land and Sea under the GEMINA and NEXTDATA projects
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We analyze the influence of the Atlantic sea surface temperature multi-decadal variability on the day-by-day sequence of large-scale atmospheric circulation patterns (i.e. the weather regimes) over the Euro-Atlantic region. In particular, we examine of occurrence of weather regimes from 1871 to present. This analysis is conducted by applying a clustering technique on the daily mean sea level pressure field provided by the 20th Century Reanalysis project, which was successfully applied in other studies focused on the Atlantic Multi-decadal Oscillation (AMO). In spring and summer, results show significant changes in the frequencies of certain weather regimes associated with the phase shifts of the AMO. These changes are consistent with the seasonal surface pressure, precipitation, and temperature anomalies associated with the AMO shifts in Europe. (C) 2016 Elsevier B.V. All rights reserved.
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