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(Top) The avalanche durations distribution for all wave modes compared with the −2 exponent (Bottom) WETCOW modes randomly distributed and propagated on a 1,000 by 1000 grid. Two examples of temporal signal snapshots with different values of signal threshold are shown (color pallet encodes the change of frequencies from the smallest (blue) to the largest (red). Localized regions of wave activity in the spatial domain are clearly evident.
