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Earth, Planets and Space
Figure 2 | Earth, Planets and Space

Figure 2

From: Analysis of propagation delays of compressional Pi 2 waves between geosynchronous altitude and low latitudes

Figure 2

Waveform examples of eight high-correlation events observed at different local times. Upper panels of each example show the non-filtered magnetic variation without a time shift, and lower panels show the filtered magnetic variation (the filter range of 40 to 150 s) with a time shift of ΔT. Horizontal arrows in the lower panels indicate the shift directions, with time shifts provided on the arrows.

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