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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 22, issue 6
Ann. Geophys., 22, 2273–2276, 2004
https://doi.org/10.5194/angeo-22-2273-2004
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 22, 2273–2276, 2004
https://doi.org/10.5194/angeo-22-2273-2004
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 3.0 License.

  14 Jun 2004

14 Jun 2004

Estimation of past solar and upper atmosphere conditions from historical and modern auroral observations

W. Schröder1, N. N. Shefov2, and H.-J. Treder3 W. Schröder et al.
  • 1Geophysical Station, Bremen, Germany
  • 2Obukhov Institute of Atmospheric Physics, Moscow, Russia
  • 3Commission for the History of Geophysics and Cosmical Physics, Potsdam, Germany

Abstract. On the basis of the analysis of the data of auroral observations at middle latitudes during low solar activity, and modern spectrophotometric research, the feasibility of their joint use for the estimation of the level of the solar activity during periods without instrumental measurements is discussed. In this paper an attempt is undertaken to determine quantitative information on solar activity by comparing the data of visual auroral observations with the modern parameter of their luminescence.

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