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Fig. 18

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The same track as in Figure 17, (a) Swarm A – GPS 16 POD TEC high-pass filtered data, (b) the closest UQRG GIM epoch with overlayed Swarm A along-track PSD section of TEC at frequency 50 s, and (c) STFT spectrogram of residual POD TEC. Black line (a) and (c) denotes the time of passing the latitude of mainshock.

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