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Figure 3 | Earth, Planets and Space

Figure 3

From: Observation of ionospheric disturbances induced by the 2011 Tohoku tsunami using far-field GPS data in Hawaii

Figure 3

The time-distance maps of vTEC variations during different observation times. Panels (a-c) are for all the visible satellites and panel (d) for satellite PRN 22. The black lines in panel (a) and panel (d) indicate the propagation velocity, and the ellipse in panel (c) marks the position of tsunami-driven TIDs. The black line in panel (a) approximately separates TIDs in different times.

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