From top to bottom: zoom-ins of the time-latitude diagram of the mean toroidal magnetic field near the surface (at Rs) and bottom (at Rb), the angular velocity variations, and the Reynolds stress components Rrφ and Rθφ near the surface (at Rs) during t = 20−65 yrs, showing that the magnetic cycle and surface activity are strongly disturbed (t = 20−45 yrs), after which the regular state is quickly recovered (t = 45−65 yrs).
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