Fig. 1: Proxy records for White Moon Cave (WMC) stalagmite.
From: Linked fire activity and climate whiplash in California during the early Holocene
a Fraction of calcite remaining in solution (F) computed from speleothem δ44Ca using Rayleigh fractionation model15 and translated to estimated rainfall using modern cave system δ44Ca values and modern rainfall. Horizontal lines provide a comparison to rainfall amounts in the last decade: Wys (water years; 12-month period from 1 October to 30 September designated by the calendar year in which it ends) 2012–2016 (red dashed, 58% modern); Wys 2017–2019 (blue dash-dot, 109% modern); Wys 2019–2021 (red dash-dot, 69% of modern) modern average annual (1950–2021, purple); WMC1 record average computed rainfall (black). b δ13C (‰ Vienna Peedee Belemnite (VPDB)), red lines highlight mean values of segments between changepoints identified based on mean and variance. c P/Ca (mmol mol−1). d Levoglucosan concentrations (ng g−1). Error bars represent the standard deviation of samples measured in duplicate. Vertical shading delineates the duration of the 8.2 kyr event (green) and precursor event (blue).
