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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 14
Adv. Radio Sci., 14, 175–180, 2016
https://doi.org/10.5194/ars-14-175-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 14, 175–180, 2016
https://doi.org/10.5194/ars-14-175-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

  28 Sep 2016

28 Sep 2016

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

Christoph Jacobi1, Norbert Jakowski2, Gerhard Schmidtke3, and Thomas N. Woods4 Christoph Jacobi et al.
  • 1Leipzig Institute for Meteorology, Universität Leipzig, Stephanstr. 3, 04103 Leipzig, Germany
  • 2German Aerospace Center, Kalkhorstweg 53, 17235 Neustrelitz, Germany
  • 3Fraunhofer-Institut für Physikalische Messtechnik (IPM), Heidenhofstraße 8, 79110 Freiburg, Germany
  • 4LASP, University of Colorado, 3665 Discovery Dr., Boulder, CO 80303, USA

Abstract. The ionospheric response to solar extreme ultraviolet (EUV) variability during 2011–2014 is shown by simple proxies based on Solar Dynamics Observatory/Extreme Ultraviolet Variability Experiment solar EUV spectra. The daily proxies are compared with global mean total electron content (TEC) computed from global TEC maps derived from Global Navigation Satellite System dual frequency measurements. They describe about 74 % of the intra-seasonal TEC variability. 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.

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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.
The ionospheric response to solar extreme ultraviolet variability is shown by simple proxies...
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