A note in single-year calibration of the radiocarbon timescale, AD 1510-1954

Abstract

Because substantial amounts of wood are required for precision dating most radiocarbon age determinations of tree ring samples cover 10 or 20 years. The determination of the calibration curve with single year spacing requires an order of magnitude larger calibration effort than made so far. Here a single year calibration is presented for recent centuries based on Douglas and Noble Fir wood from the US Pacific Northwest. It is noted that single year 14C age records may differ between regions. -K.Clayton