Articles | Volume 35, issue 5
Ann. Geophys., 35, 1113–1129, 2017
https://doi.org/10.5194/angeo-35-1113-2017

Special issue: Space weather connections to near-Earth space and the...

Ann. Geophys., 35, 1113–1129, 2017
https://doi.org/10.5194/angeo-35-1113-2017

Regular paper 05 Oct 2017

Regular paper | 05 Oct 2017

Ionospheric F-region response to the 26 September 2011 geomagnetic storm in the Antarctica American and Australian sectors

Emilia Correia et al.

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Ionospheric disturbances observed in Antarctica during a moderately strong geomagnetic storm caused by the impact of a coronal mass ejection from the Sun are presented here. The ionosphere behavior was analyzed using GNSS and ionosonde observations at middle and high latitudes. The results showed that the impact promptly affected the ionosphere from the Equator to the high latitudes, resulting in strong irregularities, particularly at middle and high latitudes, which can affect GPS users.