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On the link between northern fennoscandian climate and length of the quasi-eleven-year cycle in galactic cosmic-ray flux |
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| Authors: | Ogurtsov M.G. Jungner H. Kocharov G.E. Lindholm M. Eronen M. Nagovitsyn Yu.A. |
| Affiliation: | 1.A.F. Ioffe Physico-Technical Institute of Russian Academy of Sciences, 194021, Polytechnicheskaya 26, St.-Petersburg, Russia ;2.Dating Laboratory, University of Helsinki, Gustav H?llstr?minkatu street 2, Russia ;3.Saima Center for Environmental Sciences, Linnankatu 11, FIN-00014, Savonlinna, Finland ;4.Department of Geology, University of Helsinki, Gustav, H?llstr?minkatu 2 ;5.Central (Pulkovo) Astronomic Observatory, 196140, Pulkovskoe shosse 65/1 ; |
| Abstract: | Bidecadal fluctuations in terrestrial climate were analyzed. It was shown that this variability might arise if Earth's climate reacts to galactic cosmic-ray intensity, integrated over its full quasi-11-year cycle. It was further shown that this integral effect should also lead to an effective link between climate and the duration of the quasi-11-year cycle in cosmic ray flux. That, in turn, must result in appearance of some connection between climate and the length of the solar cycle, which is currently a topic of active debate. Analyses of temperature proxies, obtained for northern Fennoscandia, confirmed the connection of the climate in this region and the length of the cycle in galactic cosmic-ray intensity. Decadal and bidecadal variability of integrated cosmic-ray flux was quantitatively estimated. |
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