Geomagnetism and Aeronomy

, Volume 56, Issue 5, pp 641–644 | Cite as

The Hallstatt solar cycle from radiocarbon data

  • M. G. OgurtsovEmail author


The data on the 14C concentration in the Earth’s atmosphere are studied on a time span of 50000 years. It is shown that the Hallstatt cycle (a temporal variation with a period of 1500–2000 years) has been present in this series for at least 30000 years. However, this cycle is not purely of solar origin; nonsolar (supposedly climatic) factors contribute into it in certain epochs.


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© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  1. 1.Ioffe Physical-Technical InstituteSt. PetersburgRussia
  2. 2.Main (Pulkovo) Astronomic Observatory of the Russian Academy of SciencesSt. PetersburgRussia

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