THE RELATIONSHIP BETWEEN MERIDIONAL DRIFT AND ROTATION OF THE LARGE-SCALE SOLAR MAGNETIC-FIELD

The pattern of torsional oscillations was detected in the rotation of the large-scale magnetic field using the method of two-dimensional correlation functions. The position of areas of fast and slow rotation agrees with the Doppler picture obtained by Ulrich et al. (1988). The torsional wave amplitude is 20-40 ms-1 and increases with latitude. A strong correlation of the pattern of residual E-W rate with the meridional drift pattern, obtained from the same data, was determined The sign of correlation is consistent with the results reported by Ward (1965).