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Fig. 7 | Earth, Planets and Space

Fig. 7

From: Scale analysis of equatorial plasma irregularities derived from Swarm constellation

Fig. 7

Example of EPI event observed by Swarm A and C during the second study period. The panel a is the original electron density series (Ne) with 2 Hz resolution and b is ΔNe with background subtracted. The ΔNe is further filtered with different window size (WS, in seconds), as presented in panels (c)–(h). Considering a satellite speed of about 7.6 km/s, the filter window sizes of 0.5, 1.5, 2.5, 5, 10, 15 and 20 s correspond to moving-average length of about 3.8, 11.4, 19, 38, 76, 114 and 152 km, respectively

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