Induction effects of geomagnetic disturbances in the geo-electric field variations at low latitudes

Doumbia, Vafi; Boka, Kouadio; Kouassi, Nguessan; Grodji, Oswald Didier Franck; Amory-Mazaudier, Christine; Menvielle, Michel

doi:https://doi.org/10.5194/angeo-35-39-2017

Articles | Volume 35, issue 1

https://doi.org/10.5194/angeo-35-39-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The 14th International Symposium on Equatorial Aeronomy

https://doi.org/10.5194/angeo-35-39-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 35, issue 1

Regular paper

|

04 Jan 2017

Regular paper |

| 04 Jan 2017

Induction effects of geomagnetic disturbances in the geo-electric field variations at low latitudes

Vafi Doumbia, Kouadio Boka, Nguessan Kouassi, Oswald Didier Franck Grodji, Christine Amory-Mazaudier, and Michel Menvielle

Data sets

Dst index data WDC for Geomagnetism http://wdc.kugi.kyoto-u.ac.jp/dst_final/index.html

Short summary

The electrical inductions within the Earth surface due to geomagnetic field variations were examined. For that purpose the records of the geomagnetic and geo-electric field variations observed in West Africa were used. We have found that the geomagnetic field brisk variations induce non-negligible geo-electric field variations at low latitudes. This result implies a possible intense geomagnetically induced current flow in the vicinity of the equatorial electrojet influence area.