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Fig. 8 | Earth, Planets and Space

Fig. 8

From: Ionospheric disturbances over South America related to Tonga volcanic eruption

Fig. 8

Keogram of the dTEC maps of the Chile side: longitudinal cut at 35°S (upper panel) and latitudinal cut at 70°W (lower panel) as a function of time (UT) on 15 Jan 2022. The color bar shows the amplitude of dTEC oscillation. The blue triangles indicate arrival of the Lamb wave at 12:30 UT and the tsunami at 17:15 UT at Chile coast around 45°S. The broken and dashed lines indicate the sunset and sunrise time in the ionosphere at the 300 km altitude

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