Articles | Volume 25, issue 9
https://doi.org/10.5194/acp-25-5009-2025
https://doi.org/10.5194/acp-25-5009-2025
Research article
 | 
14 May 2025
Research article |  | 14 May 2025

Effects of sudden stratospheric warmings on the global ionospheric total electron content using a machine learning analysis

Guanyi Ma and Klemens Hocke

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Cited articles

Chau, J. L, Fejer, B. G., and Goncharenko, L. P.: Quiet variability of equatorial E x B drifts during a sudden stratospheric warming event, Geophys. Res. Lett., 36, L05101, https://doi.org/10.1029/2008GL036785, 2009. 
Chau, J. L., Goncharenko, L. P., Fejer, B. G., and Liu, H. L.: Equatorial and low latitude ionospheric effects during sudden stratospheric warming events, Space Sci. Rev., 168, 385–417, 2012. 
Chen, G., Wu, C., Zhang, S., Ning, B., Huang, X., Zhong, D., Qi, H., Wang, J., and Huang, L.: Midlatitude ionospheric responses to the 2013 SSW under high solar activity, J. Geophys. Res.-Space, 121, 790–803, https://doi.org/10.1002/2015JA021980, 2016. 
Chernigovskaya, M. A., Shpynev, B. G., Ratovsky, K. G., Belinskaya, A. Yu., Stepanov, A. E., and Bychkov, V. V.: Ionospheric response to winter stratosphere/lower mesosphere jet stream in the Northern Hemisphere as derived from vertical radio sounding data, J. Atmos. Sol.-Terr. Phy., 180, 126–136. https://doi.org/10.1016/j.jastp.2017.08.033, 2018. 
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We analyse the influences of sudden stratospheric warming (SSW) on diurnal/semidiurnal variations of the ionosphere with the global total electron content (TEC) data from 1998 to 2022. We use machine learning (ML) to establish the TEC (ML-TEC) model related to the solar/geomagnetic activities and seasonal change from the TEC data. Subtracting the ML-TEC from the observed TEC, we find a global SSW-induced enhancement in diurnal/semidiurnal TEC variations.
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