The influence of solar activity on action centres of atmospheric circulation in North Atlantic

We analyse the response of sea level pressure and mid-tropospheric (500 hPa) geopotential heights to variations in solar activity. We concentrate on the Northern Hemisphere and North Atlantic in the period 1948–2012. Composite and correlation analyses point to a strengthening of the North Atlantic O...

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Bibliographic Details
Published in:Annales Geophysicae
Main Authors: L. Sfîcă, M. Voiculescu, R. Huth
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2015
Subjects:
Science
Q
Physics
QC1-999
Geophysics. Cosmic physics
QC801-809
Pacific
North Atlantic
North Atlantic oscillation
Online Access:https://doi.org/10.5194/angeo-33-207-2015
https://doaj.org/article/c10758c906b64feb870d533df151e798
Description
Summary:We analyse the response of sea level pressure and mid-tropospheric (500 hPa) geopotential heights to variations in solar activity. We concentrate on the Northern Hemisphere and North Atlantic in the period 1948–2012. Composite and correlation analyses point to a strengthening of the North Atlantic Oscillation and weakening (i.e. becoming more zonal) of the Pacific/North American pattern. The locations of points with lowest and highest sea level pressure in the North Atlantic change their positions between low and high solar activity.

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