Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 34, issue 2
Articles | Volume 34, issue 2
https://doi.org/10.5194/angeo-34-241-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-34-241-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 34, issue 2
Regular paper
 | 
16 Feb 2016
Regular paper |  | 16 Feb 2016

Generation of resonant Alfvén waves in the auroral oval

V. A. Pilipenko, D. Yu. Klimushkin, P. N. Mager, M. J. Engebretson, and O. V. Kozyreva

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Short summary
Many independent observations have shown that long-period electromagnetic waves (with periods of several minutes) are preferably observed inside the auroral oval. Here we examine theoretically the possibility of Alfven wave generation by fluctuating large-scale field-aligned currents which couple outer space and the auroral ionosphere. The elaborated model indeed confirms the feasibility of an additional mechanism of long-period wave excitation which can operate at auroral latitudes.
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