Articles | Volume 39, issue 3
https://doi.org/10.5194/angeo-39-455-2021
https://doi.org/10.5194/angeo-39-455-2021
Regular paper
 | 
17 May 2021
Regular paper |  | 17 May 2021

Ionospheric control of space weather

Osuke Saka

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Short summary
The ionosphere is a partly ionized medium above the atmosphere. Because of its anisotropic properties, the imposed electric fields from the magnetosphere produce space charge. Polarization electric fields induced in the ionosphere by this process generate ion drifts (Pedersen currents) and plasma evaporation along the field lines, thus achieving a quasi-neutral equilibrium of the ionosphere. The evaporation grows as a large-scale parallel potential structure in the magnetosphere.