Time series of the rms values of and for Run A and its shearless counterpart. Top panel: black/thin for S = −0.05; red/thick for S = 0; solid for , dashed for . Middle panel: butterfly diagram of for the sheared case, where is normalized to its instantaneous rms value. Bottom panel: spatial cut of mean field components at a time during the kinematic regime (indicated by the vertical line in the two other panels); black/solid with shear, red/dashed without.