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Citation

Bayliss A, Marshall P, Dee MW, Friedrich M, Heaton TJ & Wacker L (2020) IntCal20 tree rings: an archaeological SWOT analysis. Radiocarbon, 62 (4), pp. 1045-1078. https://doi.org/10.1017/RDC.2020.77

Abstract
We undertook a strengths, weaknesses, opportunities, and threats (SWOT) analysis of Northern Hemisphere tree-ring datasets included in IntCal20 in order to evaluate their strategic fit with the demands of archaeological users. Case studies on wiggle-matching single tree rings from timbers in historic buildings and Bayesian modeling of series of results on archaeological samples from Neolithic long barrows in central-southern England exemplify the archaeological implications that arise when using IntCal20. The SWOT analysis provides an opportunity to think strategically about future radiocarbon (14C) calibration so as to maximize the utility of 14C dating in archaeology and safeguard its reputation in the discipline.

Keywords
accuracy; calibration; dendrochronology; IntCal; precision; replication

Journal
Radiocarbon: Volume 62, Issue 4

• Published version