Extended Data Fig. 1: Modern hydrographic data along the Sec-E transect.
From: Expansion of Antarctic Bottom Water driven by Antarctic warming in the last deglaciation

a. Oxygen concentration27,49. b. Salinity27,49. c. Seawater ɛNd profile27,49 alongside locations of sediment cores. Small black dots in all panels indicate modern hydrographic sampling locations. White arrows mark the pathway of Weddell Sea Deep Water (WSDW). The location of the Sec-E transect is shown in Fig. 1. Together, these panels illustrate that the spatial distribution of ɛNd closely follows the modern water mass structure. WSDW=Weddell Sea Deep Water; LCDW= Lower Circumpolar Deep Water; NADW=North Atlantic Deep Water. Figure generated using Ocean Data View50 with bathymetric data from the Gridded Bathymetry Data GEBCO_2020 grid51.