Fig. 3: Transect of the EAIS margin.
From: Extensive fluvial surfaces at the East Antarctic margin have modulated ice-sheet evolution
a, Ice-surface velocity30 along the profile displayed in Fig. 2a, with major outlet glaciers labelled. Horizontal dashed line marks the 100 m yr−1 contour, an approximate threshold of fast flow. b, Ice surface and bed elevation from 16 RES profiles used to construct the transect. Flat surfaces are highlighted in purple. Dashed lines mark sections of bed overlain by floating ice shelves; sub-shelf bathymetry from BedMachine4 version 3. Red/blue shading indicates the model-predicted basal thermal state of the EAIS32; red, basal ice within 2 °C of the pressure melting point (that is, ‘warm-based’); blue, basal ice >2 °C below the pressure melting point (that is, ‘cold-based’). Horizontal bars between panels a and b mark the extents of the major geological provinces along the transect28,29.
