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Volume 61 Supplement 5

Special Issue: Flare-Substorm/Space Weather Topics

Aeronomic effects of the solar flares in the topside ionosphere


We obtained that according to the GPS data at altitudes of the topside ionosphere (h >300 km) a flare is able to cause a decrease of the electron content. Using the theoretical model it is shown that the intense transport of O+ ions into the above-situated plasma caused by a sharp increase in the ion production rate and thermal expansion of the ionospheric plasma is a cause of the formation of the negative disturbance in the electron concentration in the topside ionosphere.


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Correspondence to L. A. Leonovich.

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Leonovich, L.A., Taschilin, A.V. Aeronomic effects of the solar flares in the topside ionosphere. Earth Planet Sp 61, 643–648 (2009).

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