Fig. 1: Location map. | Nature Communications

Fig. 1: Location map.

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

Fig. 1

The maps using the MDT_CNES_CLS18_global data set106 show the global ocean surface current, with warmer red colors representing higher current speeds. Sites U1537 and U1538 are located in the southern Scotia Sea20,21 (white rectangle). Other red and purple rectangles are sediment sites discussed in this study. The sites, numbered 1 to 13, are as follows: (1) TPC063, 3956 m, (2) TPC077, 3774 m, (3) PS2514-1, 2537 m, (4) PS67/197-1, 3837 m, (5) TPC290, 3826 m, (6) PS67/205-2, 3790 m, (7) PS67/219-1, 3619 m, (8) PS67/224-1, 2868 m, (9) TPC288, 2864 m, (10) PS67/186-1, 3671 m, (11) PS2319-1, 4323 m, (12) TPC287, 1998 m, and (13) GC528, 598 m. The black lines indicate the five main Antarctic Circumpolar Current (ACC) fronts, which from North to South comprise: the North Boundary (NB), the Subantarctic Front (SAF), the Polar Front (PF), the Southern ACC Front (SACCF), and the southern boundary (SB) of ACC, respectively3,5. The red line marks the Jason Track 104 near the Drake Passage (DP)45. The shaded area in the left map shows the study area (right figure).

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