Transect shows bedrock elevation (relative sea level change) and outlines of ice sheet and ice shelf through Ronne embayment from the continental shelf edge to the present-day grounding line position. Simulations are performed with the coupled ice sheet - solid Earth and sea level model PISM-VILMA. Movie shows 0.5 kyr snapshots during glacial build-up between last interglacial (123 ky BP) and last glacial maximum (15 kyr BP), for the two Antarctic end members of the reference 3D Earth structure, '3D max' and '3D min'. Grounding line position for '3D min' Earth structure (orange dot) is several 100 km more advanced than for '3D max' (blue dot), likely as a result of a pronounced peripheral forebulge in front of the grounding line. Dark grey shading and dot indicate present-day observed ice sheet configuration and grounding line position, respectively. Compare to Fig. 11b in Albrecht et al., 2024.