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Fig. 3.

image

Top panel: power as a function of period (vertical axis) and time (horizontal axis) obtained from the wavelet analysis of the vertical velocity at z = 1.4 Mm from Simulation 3.1.1. The power is normalized and shown in a logarithmic scale. The results are reliable for the region within the two white lines. The vertical dashed lines indicate the time steps plotted in the middle panel. Middle panel: normalized power at t = 67 min (blue line) and at t = 430 min (red line) obtained from the wavelet analysis. Bottom panel: normalized power for the full temporal series (500 min) obtained from the FFT.

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