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Earth, Planets and Space
Fig. 7 | Earth, Planets and Space

Fig. 7

From: New aspects of the upper atmospheric disturbances caused by the explosive eruption of the 2022 Hunga Tonga–Hunga Ha’apai volcano

Fig. 7

a, b Trajectories of the ICON (red) and Swarm (green) satellites, ground magnetic observatories (yellow), and a wavefront of the air pressure wave from the HTHH volcano with the propagation speed of 318 m/s (black). Dots indicate each satellite location at the given time. c, d Height profiles of zonal wind at the exact locations above (e, f) EEJ observations on each orbit of the Swarm A satellite. g, h Height profiles of zonal wind on each orbit of the ICON satellite. The statistical value of the background wind (gray shaded areas and solid black lines) corresponds to percentiles of the entire data set. The background wind (black dotted line) is calculated with the four previous days (Harding et al. 2022)

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