Evaluation of the Atlantic Multidecadal Oscillation Impact on Large-Scale Atmospheric Circulation in the Atlantic Region in Summer


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Аннотация

The influence of the Atlantic Multidecadal Oscillation (AMO) on large-scale atmospheric circulation in the Atlantic region in summer for the period of 1950–2015 is investigated. It is shown that the intensification of the summer North Atlantic Oscillation (NAO) with significant changes in sea level pressure anomalies in the main centers of action (over Greenland and the British Isles) occurred while the North Atlantic was cooler. Sea surface temperature anomalies, which are linked to the AMO in the summer season, affect both the NAO index and fluctuations of the Eastern Atlantic/Western Russia (EAWR) centers of action. The positive (negative) phase of the AMO is characterized by a combination of negative (positive) values of the NAO and EAWR indices. The dominance of the opposite phases of the teleconnection indices in summer during the warm North Atlantic and in its colder period resulted in differences in the regional climate in Europe.

Авторлар туралы

V. Semenov

Obukhov Institute of Atmospheric Physics; Institute of Geography

Email: cherenkova@igras.ru
Ресей, Moscow, 119017; Moscow, 119017

E. Cherenkova

Obukhov Institute of Atmospheric Physics; Institute of Geography

Хат алмасуға жауапты Автор.
Email: cherenkova@igras.ru
Ресей, Moscow, 119017; Moscow, 119017

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