Figure 3: Comparison of PNG planktonic foraminifera G. ruber Nd/Ca from MD05-2925 with other records over the past 282 kyr.
From: Obliquity pacing of the western Pacific Intertropical Convergence Zone over the past 282,000 years
(a) Northern hemisphere summer insolation (NHSI, 15 July) at 30°N (ref. 61). (b) Stacked δ18O of Chinese stalagmites6,30,31,32. (c) MD05-2925 G. ruber Nd/Ca (2σ precision: ±2.6%, ref. 20). (d) Modelled PNG precipitation (5–12°S and 130–160°E). (e) Southern hemisphere summer insolation (SHSI, 15 January) at 15°S (ref. 61). (f) Earth obliquity61. Arrows depict an increase of the ASM and the foraminifera-inferred PNG precipitation. PNG precipitation is intensified at six periods with high SHSI (vertical grass green bars with Nd/Ca >0.75 μmol mol−1), but does not closely reflect high SHSI at six other intervals (grey bars).
