Fig. 3: Comparison of the Talos Dome ice core (TALDICE) isotopic record to Grenoble Ice Sheet and Land Ice (GRISLI) simulations, sedimentological data from sediment core U1361A, and Antarctic atmospheric and oceanic temperature records since 350 ka.

a Antarctic ice core temperature difference (ΔT, difference from mean values of the last millennium) derived from δD at Epica Dome C (EDC)³¹ plotted on the Antarctic Ice Core Chronology 2012 (AICC2012)⁶⁶ and 65°S summer insolation (grey curve)⁷⁰. b TALDICE normalized δ¹⁸O record (data centred and scaled to have mean 0 and standard deviation 1) (measured, pink; resampled at 200 year intervals, red). Holocene data are from Stenni et al.³⁴ and Marine Isotopic Stage (MIS) 5.5 data are from Masson-Delmotte et al.³⁰. The MIS 7.5 and MIS 9.3 isotopic data are from this study. c Talos Dome (TD) and Dome C (DC) elevation from Glacial Start (GS) simulations, based on the original oceanic forcing used by Quiquet et al.²⁴, and the original forcing increased by 5% and by 10%. d Wilkes Subglacial Basin ice volume evolution from GS simulations. e Core U1361A Nd isotope record (plotted as ε_Nd; green curve with dots with their respective standard deviation) and iceberg-rafted debris (IBRD) % (brown curve with dots)⁷ on AICC2012 age scale (see Methods). f North Atlantic bottom water temperatures (°C) derived from the Ocean Drilling Program (ODP) 980 δ¹⁸O benthic foraminifera record⁵⁰ used to derive the GRISLI oceanic forcing²⁴. Grey bars highlight the intervals with a unique isotopic signal in the TALDICE ice core compared to the EDC record.