Radiocarbon Variability in the Western North Atlantic During the Last Deglaciation (2005) by Laura F. Robinson et al. matched at 10,000 B.P. with the graph in paper
Holocene Treeline History and Climate Change Across Northern Eurasia (2000) by Glen M. MacDonald et al.
The Maximum Forest Extension is 2 cycles of 1,800 yrs, showing peaks at 4,400 and 8000 yr B.P. (uncalib) which fits with the lunar tide into the arctic basin cycle and extrapolates to the date of 17,000 yr B.P., the onset of Heinrich 1. The tree data shows dips due to the lunar tidal minimums .
Edited by RingFenceTheCity, 14 June 2013 - 01:09 PM.