2016
DOI: 10.22449/1573-160x-2016-4-25-33
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The East Atlantic Oscillation: Mechanism and Impact on the European Climate in Winter

Abstract: The second leading mode of principal component analysis of the winter atmospheric pressure pattern in the North Atlantic-European region known as the East Atlantic Oscillation (EAO) is considered. The winter EAO pattern exhibits well-defined dipole at 500-hPa geopotential height (H 500 ) with centers over the North Atlantic and the Central Europe. The EAO phase-to-phase shifts reflect the general atmospheric circulation changes and the zonal (meridional) circulation dominates in positive (negative) EAO phase. … Show more

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Cited by 14 publications
(16 citation statements)
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“…In the positive EA phase, which is associated with a deep low-pressure system over the Atlantic, warm air masses are prevalent above Europe. Whereas in the negative EA phase there is a high-pressure system over the Atlantic, and this leads to the predominance of cool and dry air masses [79,80].…”
Section: Data and Research Methodsmentioning
confidence: 99%
“…In the positive EA phase, which is associated with a deep low-pressure system over the Atlantic, warm air masses are prevalent above Europe. Whereas in the negative EA phase there is a high-pressure system over the Atlantic, and this leads to the predominance of cool and dry air masses [79,80].…”
Section: Data and Research Methodsmentioning
confidence: 99%
“…This teleconnection could be attributed to the influence of EA on atmospheric circulation. The winter positive (negative) EA phase indicates a dominating zonal (meridional) circulation (Mikhailova and Yurovsky et al, 2016). Hence, EA can modulate heat and moisture transport.…”
Section: Interannual Variations and Teleconnections 315mentioning
confidence: 99%
“…Research continues to highlight the importance of the East Atlantic Pattern (EA) in influencing European climate. The EA was first described by Wallace and Gutzler [23] and is cited as the second mode of climate variability in the North Atlantic following the NAO [24,25]. Barnston and Livezey [26] identified a well-defined EA monopole south of Iceland and west of the United Kingdom (approximately 55 • N; 20-35 • W), a definition frequently used in research [24,27,28] and by NOAA in the calculation of their EA teleconnection index [29].…”
Section: Introductionmentioning
confidence: 99%