Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 24, issue 10
Articles | Volume 24, issue 10
https://doi.org/10.5194/acp-24-5837-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-24-5837-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 24, issue 10
Research article
 | 
22 May 2024
Research article |  | 22 May 2024

Influences of sudden stratospheric warmings on the ionosphere above Okinawa

Klemens Hocke, Wenyue Wang, and Guanyi Ma

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Cited articles

Chuo, Y. J.: Variations of ionospheric profile parameters during solar maximum and comparison with IRI-2007 over Chung-Li, Taiwan, Ann. Geophys., 30, 1249–1257, https://doi.org/10.5194/angeo-30-1249-2012, 2012. a
Davies, K.: Ionospheric Radio, Peter Peregrinus, London, ISBN 978-0-86341-186-1, 1990. a
Forbes, J. M. and Zhang, X.: Lunar Tide in the F Region Ionosphere, J. Geophys. Res.-Space, 124, 7654–7669, https://doi.org/10.1029/2019JA026603, 2019. a, b, c
Goncharenko, L., Chau, J. L., Condor, P., Coster, A., and Benkevitch, L.: Ionospheric effects of sudden stratospheric warming during moderate-to-high solar activity: Case study of January 2013, Geophys. Res. Lett., 40, 4982–4986, https://doi.org/10.1002/grl.50980, 2013. a, b, c, d, e, f
Goncharenko, L. P., Harvey, V. L., Liu, H., and Pedatella, N. M.: Sudden Stratospheric Warming Impacts on the Ionosphere–Thermosphere System, in: chap. 16, AGU – American Geophysical Union, Washington, D.C., USA, 369–400, ISBN 9781119815617, https://doi.org/10.1002/9781119815617.ch16, 2021. a, b
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We find a sudden stratospheric warming (SSW) effect in the F2 critical frequency (foF2) series for Okinawa. Across 29 SSW events, the amplitude of the semidiurnal cycle of foF2 peaks at the SSW onset in the SSW years. In these years, we find, for the first time, a lunar terdiurnal component with a relative amplitude of about 5 %, and lunar diurnal and semidiurnal components have relative amplitudes of about 10 %. The periods of lunar ionospheric tidal variations align with those of ocean tides.
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