Figure 3
From: Southern Ocean contribution to both steps in deglacial atmospheric CO2 rise
Southern Ocean proxy records in relation to atmospheric records. (a) PS75/104-1 δ13C (green). (b) Southwest Pacific intermediate-water [CO32−] records. PS75/104-1 (purple; this study), RR0503-7939 (yellow). Red triangle—modern [CO32−]sat 49.48 µmol/kg at depth of PS75/104-158. (c) Southwest Pacific mid depth [CO32–] records. RR0503-83 (teal), RR0503-12539 (dark-red). (d) Drake Passage coral δ11B data34 (orange). (e) South Atlantic upwelling and opal flux50 (black). (f) Atmospheric δ13C3 (maroon) and CO2 splice1 (blue). Blue shading—deglacial pulses in atmospheric CO2. P I first pulse—Heinrich Stadial 1, P II second pulse—Younger Dryas, SP South Pacific, SA South Atlantic, DP drake passage.
