Extended Data Fig. 8: Gas-phase synchronization of GISP2 and WD CH4 records over DO12.
From: Bipolar impact and phasing of Heinrich-type climate variability

CH4 match-points (red circles) and GISP2 CH4 record (black; this study), WD CH4 record17 (green). The use of an automated correlation scheme indicates that visual match-points are accurate to +/− 14 years.