Mean (bottom panel), maximum (middle panel), and rms (top panel) of the absolute line-of-sight magnetic field in the central 10° radius averaged over all emerging active regions (thick black) at each time interval. The blue curve shows the values for only those active regions that reach a maximum flux that is lower than the median maximum flux value, and the red curve shows the values for the emerging active regions that reach a higher value. The corresponding values for the control regions are shown by the thin curves. The shaded grey area indicates the time span covered by the previous LBB survey. The uncertainties are the rms of the quantity. For example, in the top panel, , where N is the number of active regions at time interval, TI.
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