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Climate of the Past An interactive open-access journal of the European Geosciences Union
© Author(s) 2015. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
12 Feb 2015
Review status
This discussion paper has been under review for the journal Climate of the Past (CP). The revised manuscript was not accepted.
Paleoclimate forcing by the solar De Vries/Suess cycle
H.-J. Lüdecke1,*, C. O. Weiss2,*, and A. Hempelmann3 1HTW, University of Applied Sciences, Saarbrücken, Germany
2Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
3University of Hamburg, Hamburg Observatory, Hamburg, Germany
Abstract. A large number of investigations of paleoclimate have noted the influence of a ~ 200 year oscillation which has been related to the De Vries/Suess cycle of solar activity. As such studies were concerned mostly with local climate, we have used extensive northern hemispheric proxy data sets of Büntgen and of Christiansen/Ljungqvist together with a southern hemispheric tree-ring set, all with 1 year time resolution, to analyze the climate influence of the solar cycle. As there is increasing interest in temperature rise rates, as opposed to present absolute temperatures, we have analyzed temperature differences over 100 years to shed light on climate dynamics of at least the last 2500 years. Fourier- and Wavelet transforms as well as nonlinear optimization to sine functions show the dominance of the ∼ 200 year cycle. The sine wave character of the climate oscillations permits an approximate prediction of the near future climate.

Citation: Lüdecke, H.-J., Weiss, C. O., and Hempelmann, A.: Paleoclimate forcing by the solar De Vries/Suess cycle, Clim. Past Discuss., 11, 279-305, doi:10.5194/cpd-11-279-2015, 2015.
H.-J. Lüdecke et al.
H.-J. Lüdecke et al.


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