G: GISP2 temperature anomalies from δ40Ar fitting using Schwander et al. (1997) firn model and Goujon et al. (2003) firn model reconstructed using stabilized temperature from 70 to 1000 yr b2k

GISP2 temperature anomalies from δ40Ar fitting using Schwander et al. (1997) firn model and Goujon et al. (2003) firn model reconstructed using stabilized temperature from 70 to 1000 a b2k (Figure 4 and Supplement p. 6 in Döring and Leuenberger 2022, QSR). Ages from 70 to 1000 a b2k not recommend for climatic interpretation. Uncertainty is 2sigma = 1.14...1.95 K for the Schwander et al. (1997) firn model reconstruction and 2sigma = 1.30...2.05 K for the Goujon et al. (2003) firn model reconstruction. The uncertainty is based on mean isotope data resolution of 17.8 a.