Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 39, issue 3
Articles | Volume 39, issue 3
https://doi.org/10.5194/angeo-39-549-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-39-549-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 39, issue 3
Regular paper
 | 
16 Jun 2021
Regular paper |  | 16 Jun 2021

Even moderate geomagnetic pulsations can cause fluctuations of foF2 frequency of the auroral ionosphere

Nadezda Yagova, Alexander Kozlovsky, Evgeny Fedorov, and Olga Kozyreva

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Latest update: 22 Feb 2025
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Short summary
We present a study of ultralow-frequency waves in the ionosphere and on the ground. These waves are very slow (their periods are about several minutes). They are registered on the ground as geomagnetic pulsations. No simple dependence exists between geomagnetic and ionospheric pulsations. Here we study not only selected pulsations with very high amplitudes but also usual pulsations and try to answer the question, which pulsation parameters are favorable for modulation of the ionosphere?
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