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Earth, Planets and Space
Fig. 11 | Earth, Planets and Space

Fig. 11

From: Continuous Doppler sounding of the ionosphere during solar flares

Fig. 11

Relative attenuation of Doppler signals at 4.63 MHz measured in Tucumán on 7 August 2016 during M1.3 and C8.5 X-ray solar flares from 14:30 to 15:30 UT. a Attenuation of Doppler signal, solid blue averaged over three sounding paths, dashed for individual sounding paths. b Attenuation measured by nearby riometer at 38.2 MHz, solid black only for 7 August 2016, dashed after subtracting the quiet day curve (QDC) obtained from 1 month interval

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