Figure 6.

Comparison of four paleorecords over the 45.5–27 ka BP interval: (a) NGRIP ice core ${\delta }^{18}$O¹³¹; (b) MD03-2621 marine sediment reflectance⁶⁴; (c) Paraiso Cave (PAR07) ${\delta }^{18}$O¹⁶⁵; and (d) ODP893A marine sediment N. pachyderma ${\delta }^{18}$O^87,88. Vertical lines represent detected transitions, with colors indicating the direction of the jumps. Grey bars in panel (a) represent interstadials identified for the NGRIP ${\delta }^{18}$O record by Bagniewski et al.¹⁹. Note that the “ka BP” time unit, where the ‘Present’ is defined as the year 1950, applies only to the Paraiso and ODP893A records. The NGRIP and MD03-2621 records use the “ka b2k” time scale, where ‘b2k’ refers to the year 2000 as the origin of past times. The vertical axes in (b, d) are reversed.