Models generated by the methods described by Stål et al (in review GRL 2019).The repository contains boundary models for Antarctica and reference models for Australia.Sum, union, squared sum, intersect, product and squared intersect refers to the technique used to combine boundary models derived from three datasets: Seismic shear wave speed from tomography study (An et al, 2015, doi:10.1002/2014jb011332), Free air gravity (Förste at al, 2014, GFZ Data Services), and bedmap elevation (Fretwell et al, 2013, doi:10.5194/tc-7-375-2013).