Behaviour of the ionospheric F2-layer during geomagnetic storms in southern middle latitudes

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Published: Apr 1, 1996
DOI: https://doi.org/10.22201/igeof.00167169p.1996.35.2.645
Keywords:
F2-Layer, Geomagnetic storm, Parallel electric fields, thermospheric winds

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Gustavo Adolfo Mansilla
Laboratorio de Ionosfera-Instituto de Física, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Argentina.

Abstract

Hourly values of NrnF2 and h'F2 from South American stations were used to study the behavior of the ionosphere during geomagnetic storms. The results show a remarkable increase in NmF2 and h'F2 during perturbed days (by a factor of 2) with respect to the monthly median. It is suggested that the upward drift of plasma is produced by an eastward electric field of magnetospheric origin during the first day of the storm. Thermospheric winds play an important role during the positive phase of the storm.

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Mansilla, G. A. (1996). Behaviour of the ionospheric F2-layer during geomagnetic storms in southern middle latitudes. Geofisica Internacional, 35(2), 169–174. https://doi.org/10.22201/igeof.00167169p.1996.35.2.645
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Vol. 35 No. 2 (1996): April 1, 1996
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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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