Fig. 2
Panel a: magnetic field components and magnitude. Panel b: current density jz in the out-of-plane direction. Panel c: time series of PVI(s, ℓ = λT∕10). Panel d: filtered magnetic helicity evaluated at a correlation scale 
. The horizontal red lines in (c) and (d) represent the thresholds of the method, where the symbols represent over-threshold peaks.
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