Frequency of circulation patterns and air temperature variations in Europe

The relationship between the frequency of circulation patterns and air temperature fields in Europe are analysed. The circulation forms W, E and C according to the classification elaborated by Vangengeim and Girs, and the zonal, meridional and half-meridional circulation groups by Hess and Brezowsky are used in this study, and the correlation maps between circulation patterns and sea level pressure are composed. The highest correlation was observed in winter. In northern and central Europe zonal circulation causes a higher temperature in winter and a lower temperature in summer. The meridional circulation has an opposite relationship with the temperature. The northern circulation has the maximum negative correlation in spring and autumn.