Fig. 4: Orbital change in ACC fronts and the associated paleoclimate records. | Nature Communications

Fig. 4: Orbital change in ACC fronts and the associated paleoclimate records.

From: Extremely poleward shift of Antarctic Circumpolar Current by eccentricity during the Last Interglacial

Fig. 4

a Sortable silt mean grain size (\(\overline{{{{\rm{SS}}}}}\)) and the loess \(\overline{{{{\rm{SS}}}}}\) at Site U1537 (this study), and (eccentricity+0.2precession)64. b Loess \(\overline{{{{\rm{SS}}}}}\) at Site U1537, eccentricity64, and Antarctic Ice Sheet change inferred by detrital sediment Nd isotopes records at Site U1361A87. c Precession64, detrended \(\overline{{{{\rm{SS}}}}}\) at Sites U1537, and Southern Hemisphere Westerlies (SHW) inferred by log (Fe/Ca) at Site GeoB3375-1/GeoB1501673. d Precession64 and the movement of the Western Pacific Intertropical Convergence Zone (ITCZ) inferred by the simulated New Guinea Coastal Current (NGCC) at Site MD05-292079. e \(\overline{{{{\rm{SS}}}}}\) at Site U1537, δ15 Ndb offset record calculated using the δ15 Ndb at Site MD12-339495, and CO2 offset record95,96. f Spectral analysis of detrended ARM/k records at Site MD00-2375G51, detrended \(\overline{{{{\rm{SS}}}}}\) records at Site U1537, SHW inferred by log(Fe/Ca)73, and the movement of the Western Pacific ITCZ inferred by the simulated NGCC at Site MD05-292079.

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