Fig. 1: Pine Island Glacier subjected to different basal melt forcing.
From: Recent irreversible retreat phase of Pine Island Glacier
a,b, Bedrock elevation with overlain grounding lines (a) and flowline profiles (b) for the initial model setup, control and warm simulations. The flowline position is shown in dashed cyan in a. The location of PIG is shown in the inset map of Antarctica in a, which is displayed using the polar stereographic projection (xps, yps). In both panels, the present-day geometry is shown in dotted purple and the steady-state geometry after no basal melting for 500 years is shown in dash-dotted purple. The black solid line shows the geometry after 100 years of control forcing, with a 700 m thermocline depth and the red solid line shows the geometry following another 50 years of warm forcing, with a 600 m thermocline. The zero position along the flowline in b corresponds to the present-day grounding-line position.
