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Fig. A.3.

image

Fourier power spectral densities for the turbulent α-dynamo data (black lines), lag-1 auto-correlation Fourier power spectral densities (dashed-red lines) indicating the significance level of 0.05, and the highest period and its first three harmonics (dashed-blue lines) for full disk (a), northern hemisphere (b), and southern hemisphere (c).

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