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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Latitudinal and interhemispheric differences of the ionospheric semi-diurnal lunitidal perturbations during the 2009 Arctic sudden stratospheric warming event in the eastern Asia–Australia sector

Fig. 5

The variations of foF2 data (left column) and the corresponding AM2 (right column) from a chain of ionosonde stations in the eastern Asia–Australia sector shown in Fig. 1. The corresponding geomagnetic latitudes of these stations are given in the right column. The vertical dashed lines are the same as those in Fig. 2a

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