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Fig. 7 | Earth, Planets and Space

Fig. 7

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. 7

The variations of PM2 in the a eastern Asia–Australia and b American sectors during the 2009 SSW. The dashed lines are the same as those in Fig. 6. c Gives the PM2 variations at 10°N geomagnetic latitude in the two sectors with red for the eastern Asia–Australia sector and blue for the American sector

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