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Radiocarbon/Tree-Ring Calibration, Solar Activity, and Upwelling of Ocean Water

Published online by Cambridge University Press:  18 July 2016

F B Knox  and
B G McFadgen
F B Knox
Affiliation:
900 Ohariu Valley Road, R.D., Johnsonville, Wellington, New Zealand. Email: [email protected]
B G McFadgen
Affiliation:
900 Ohariu Valley Road, R.D., Johnsonville, Wellington, New Zealand. Email: [email protected]
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Abstract

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Least-squares fitted smooth curves to radiocarbon versus tree-ring calibration data for the period AD 1140 to 1950 are compared with climatic warming and cooling of the North Atlantic (Little Ice Age), and with recorded sunspot numbers over the period AD 1670 to 1950.

Calibration curves from different parts of the globe are not identical, and appear to be determined by a combination of variable solar activity and variable oceanic upwelling of 14C-depleted water, with the variable upwelling itself partly determined by solar activity.

Type
Part II
Information
Radiocarbon , Volume 46 , Issue 2: Proceedings of the 18th International Radiocarbon Conference (Part 2 of 2), Conference Editors: Nancy Beavan Athfield, Rodger J Sparks , 2004 , pp. 987 - 995
Copyright
Copyright © The Arizona Board of Regents on behalf of the University of Arizona 

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