Fig. 4: Comparison of the amplitude of glacial cycles in the tropical Andes and global ice volume. | Nature

Fig. 4: Comparison of the amplitude of glacial cycles in the tropical Andes and global ice volume.

From: 700,000 years of tropical Andean glaciation

Fig. 4

a–e, Junín GI and benthic δ18O proxy of global ice volume3 (z-scores) using 80 radiocarbon ages1 and tie points in Figs. 2 and 3b,c for the Junín GI age model (a), index of tropical glacier enhancement from the difference between the Junín GI and the LR04 proxy of global ice volume3 (b), weight percentage organic carbon in Junín drill core (c), cross-equatorial January insolation gradient38 between 11° S and 11° N (d) and atmospheric GHG concentrations from Antarctic ice cores (e; CO2 (refs. 39,40); CH4 (ref. 41)). Dashed vertical lines in c and d highlight the tight coupling between the Junín lake level and the regional monsoon strength.

Source data

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