Energy transfer among flow and magnetic fields with different equatorial symmetry during the dipole reversal in a geodynamo simulation

Time evolution of z-component of the magnetic field (left) and temperature (right) in the fluid shell around a reversal (13.0 < t < 15.0). Time is normalized by the magnetic diffusion time. Time and angle of the dipole component at CMB are shown by the vertical and horizontal lines in the bottom plot, respectively. Dominant z-component magnetic field flips from southward (negative) to northward (positive).