Responses of intermediate layers to geomagnetic activity during the 2009 deep solar minimum over the Brazilian low-latitude sector

Santos, Ângela M.; Brum, Christiano G. M.; Batista, Inez S.; Sobral, José H. A.; Abdu, Mangalathayil A.; Souza, Jonas R.

doi:https://doi.org/10.5194/angeo-40-259-2022

Articles | Volume 40, issue 3

Ann. Geophys., 40, 259–269, 2022

https://doi.org/10.5194/angeo-40-259-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: From the Sun to the Earth's...

Ann. Geophys., 40, 259–269, 2022

https://doi.org/10.5194/angeo-40-259-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 40, issue 3

Regular paper

03 May 2022

Regular paper | 03 May 2022

Responses of intermediate layers to geomagnetic activity during the 2009 deep solar minimum over the Brazilian low-latitude sector

Ângela M. Santos et al.

Data sets

São Luís e Cachoeira Paulista DATA A. M. Santos, C. G. M. Brum, I. S. Batista, J. H. Sobral, M. A. Abdu, and J. R. Souza https://doi.org/10.5281/zenodo.3967542

Short summary

Using the Digisonde data this paper shows that the small variation in the geomagnetic activity during low solar activity can affect both the parameter of height and the frequency of the intermediate layer (ILs) over the low-latitude Brazilian sector. The most expressive responses of the ILs to geomagnetic activity were observed during the summer when the height of the ILs suffered a significant decrease with the increase of the magnetic activity magnetic in the first hours of the day.