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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 35, issue 5
Ann. Geophys., 35, 1165–1176, 2017
https://doi.org/10.5194/angeo-35-1165-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

Ann. Geophys., 35, 1165–1176, 2017
https://doi.org/10.5194/angeo-35-1165-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 27 Oct 2017

Regular paper | 27 Oct 2017

Evidence of prompt penetration electric fields during HILDCAA events

Regia Pereira Silva et al.

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In this work the response of the Brazilian equatorial ionosphere is studied during three HILDCAA events that occurred in the year of 2006 using the digisonde data. Geomagnetic indices and interplanetary parameters were used to calculate a cross-correlation coefficient between the Ey and the hmF2. The results showed that the pumping action of particle precipitation into the auroral zone has moderately modified the equatorial hmF2, being more sensitive during PRE time.
In this work the response of the Brazilian equatorial ionosphere is studied during three HILDCAA...
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