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Amplitude of Sunspot-Dependent Radiocarbon Variations: Data from Corals and Wine

Published online by Cambridge University Press:  18 July 2016

Mordeckai Magaritz ,
Israel Carmi  and
Ziv Sirkes
Mordeckai Magaritz
Affiliation:
Department of Isotope Research, The Weizmann Institute of Science, 76100 Rehovot, Israel
Israel Carmi
Affiliation:
Department of Isotope Research, The Weizmann Institute of Science, 76100 Rehovot, Israel
Ziv Sirkes
Affiliation:
Department of Isotope Research, The Weizmann Institute of Science, 76100 Rehovot, Israel
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It has been suggested that the sunspot cycle modulates the production rate of radionuclides in the atmosphere and that these modulations can be traced in various parts of the earth surface system. On the basis of a theoretical analysis, Damon, Sternberg, and Radnell (1983) have concluded that the effects of the 11-yr cycle of sunspots should be observable in 14C data provided the measurements are done at a 2 permil (sd) level. This conclusion is based on calculations using models discussed by Lingenfelter and Ramaty (1970) and by O'Brien (1979) and on the 14C inventory modified from Damon, Lerman, and Long (1978). In this note we compare the amplitude estimate of Damon, Sternberg, and Radnell (1983), who calculated a representative peak-to-peak variation of 1.7‰ in 14C for the sunspot cycle between 1848 and 1856, with experimental values derived from recently published data. We find the experimental value to be larger by a significant factor from the theoretical calculation.

Type
Notes, Comments, and Remarks
Information
Radiocarbon , Volume 27 , Issue 1 , 1985 , pp. 111 - 115
Copyright
Copyright © The American Journal of Science 

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