Fig. E.1.
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Isocontours of the stream function for model M1 of 1 Myr (top panel) and 15.75 Myr (bottom panel). The different colours indicate counter-rotating cells, where the red cells rotate clockwise in the first quadrant of the plot. These models correspond to those shown in Fig. 2. The isobars at the edge of the convective core and at the surface are shown in grey.
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