The influence of solar activity on action centres of atmospheric circulation in North Atlantic
- 1Faculty of Geography and Geology, Alexandru Ioan Cuza University, Iaşi, Romania
- 2Faculty of Science and Environment, Dunărea de Jos University, Galaţi, Romania
- 3Faculty of Science, Charles University, Prague, Czech Republic
- 4Institute of Atmospheric Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
Abstract. 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.