Extended Data Fig. 1: Model resolution dependency of simulated present day grounding line position.

Simulated grounding line positions at the year 2020. A) Filchner-Ronne sector, B) Amundsen Sea sector, C) George V Land D) Totten Glacier. Grounding lines at 16 km (orange line; default configuration), 8 km (green line) and 4 km (red line) resolution are displayed. Present day observed grounding line (BedMachine Antarctic, Morlighem et al. 2020) is depicted by the thin black line. Topography from Morlighem et al. 2020.