Articles | Volume 14
28 Sep 2016
 | 28 Sep 2016

Delayed response of the global total electron content to solar EUV variations

Christoph Jacobi, Norbert Jakowski, Gerhard Schmidtke, and Thomas N. Woods

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Cited articles

Afraimovich, E. L., Astafyeva, E. I., Oinats, A. V., Yasukevich, Yu. V., and Zhivetiev, I. V.: Global electron content: a new conception to track solar activity, Ann. Geophys., 26, 335–344,, 2008.
Astafyeva, E. I., Afraimovich, E. L., Oinats, A. V., Yasukevich, Yu. V., and Zhivetiev, I. V.: Dynamics of global electron content in 1998–2005 derived from global GPS data and IRI modeling, Adv. Space Res., 42, 763–769, 2008.
Borries, C., Berdermann, J., Jakowski, N., and Wilken, V.: Ionospheric storms – a challenge for empirical forecast of the Total Electron Content, J. Geophys Res.-Space, 120, 3175–3186,, 2015.
CDDIS: GNSS Atmospheric Products, available at:, last access: 19 June 2015.
Hernandez-Pajares, M., Juan, J. M., Sanz, J., Orus, R., Garcia-Rigo, A., Feltens, J., Komjathy, A., Schaer, S. C., and Krankowski, A.: The IGS VTEC maps: a reliable source of ionospheric information since 1998, J. Geod., 83, 263–275, 2009.
Short summary
The ionospheric response to solar extreme ultraviolet variability is shown by simple proxies based on Solar Dynamics Observatory/Extreme Ultraviolet Variability Experiment solar spectra. The daily proxies are compared with global mean total electron content. At time scales of the solar rotation up to about 40 days there is a time lag between EUV and TEC variability of about one day, with a tendency to increase for longer time scales.