Yang et al. 2014 raw ring-width measurements (Allm.raw, 1203 juniper cores, 2637 BC to AD 2011) and chronology, Climatic Research Unit data page for the paper
How it connects
This book or paper is where we read about
Juniper rings (Qilian Mountains, 1,400 km west of Erlitou): 1561-1546 BC was somewhat dry, with sharp dry years in 1558 and 1548 BC, from only 12 cores