CYCLE-19 FACULA DYNAMICS .2. MERIDIONAL CIRCULATION, RMS VELOCITY, AND REYNOLDS STRESSES

We investigated the meridional circulation of photospheric faculae thr oughout cycle 19. Together with the rotation observed in a companion p aper (Meunier et al. 1996), we were able to address the problem of the existence of the observed differential rotation. The meridional circu lation is characterized by a strong north-south asymmetry. The distrib ution of meridional circulation around the mean value confirms the exi stence of two populations detected in Meunier et al. (1996). An invest igation of the rms velocities yields information on the variation of t he anisotropy between the two horizontal motions and the latitudinal d ependence of the small-scale kinetic energy. Lastly, a very small facu la covariance has been measured, and its variation during the cycle ha s been established.