Fig. 1: Geographical model domain for the Amundsen Sea Sector of West Antarctica and examples of the effects of spatial model resolution on mass loss.
a Model domain and initial state at 2 km resolution from data assimilation: colours show ice velocities (m a−1) and elevation contours are at 200 m intervals. b Example WAVI simulations of SLC over 150 years for \({M}_{{t}_{0}}=25\) m a−1 and R = 8 km (orange lines) and R = 2 km (blue lines), with each line representing a different Bedmachine realisation at resolution R. Differences in simulated ice thickness at t = 150 years between a 2 km and an 8 km (c), 5 km (d) and 3 km (e) resolution Bedmachine realisation for \({M}_{{t}_{0}}=25\) m a−1. In each case, the coarser resolution thickness is interpolated on to the 2 km grid and thickness at 2 km is subtracted from this.
