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

 
: Jacobi, Christoph; Jakowski, Norbert; Schmidtke, Gerhard; Woods, Thomas N.

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Fulltext (PDF; )

Advances in radio science 14 (2016), pp.175-180
ISSN: 1684-9965
English
Journal Article, Electronic Publication
Fraunhofer IPM ()
solar EUV spectra; Extreme Ultraviolet Radiation; TEC; total electron content; Ultraviolet Spectroscopy

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.

: http://publica.fraunhofer.de/documents/N-423790.html