Articles | Volume 40, issue 1
Regular paper
01 Mar 2022
Regular paper |  | 01 Mar 2022

An investigation into the spectral parameters of ultra-low-frequency (ULF) waves in the polar caps and magnetotail

Nataliya Sergeevna Nosikova, Nadezda Viktorovna Yagova, Lisa Jane Baddeley, Dag Arne Lorentzen, and Dmitriy Anatolyevich Sormakov

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Cited articles

Allan, W. and Wright, A. N.:  Magnetotail waveguide: Fast and Alfvén waves in the plasma sheet boundary layer and lobe, J. Geophys. Res., 105, 317–328,, 2000. 
Alperovich, L. S. and Fedorov, E. N.: Hydromagnetic Waves in the Magnetosphere and the Ionosphere, Series: Astrophysics and Space Science Library, Springer, the Netherlands, Vol. 353, 2009, XXIV, 418 pp., Hardcover, ISBN 978-1-4020-6636-8, 2007. 
Baker, G., Donovan, E. F., and Jackel, B. J.: A comprehensive survey of auroral latitude Pc5 pulsation characteristics, J. Geophys. Res.-Space, 108, 1384,, 2003. 
Ballatore, P.: Pc5 micropulsation power at conjugate high-latitude locations, J. Geophys. Res., 108, 1146,, 2003. 
Short summary
This paper presents a study of millihertz magnetic pulsations seen in the magnetosphere and on the Earth under quiet space weather conditions. We found that these fluctuations appear in the magnetosphere as soon as disturbances with the same frequency vanish in the solar wind. The results of this work show the possibility of a substorm developing under absolutely quiet external conditions and allow us to assume that these pulsations represent a substorm preparatory phase.