Extended Data Fig. 1: Distribution of the 7,678 corrugation ridges mapped in this study.
From: Rapid, buoyancy-driven ice-sheet retreat of hundreds of metres per day
Detailed bathymetric data: ©Kartverket. Background bathymetry is Olex single-beam echo-sounder data (grid cell size 50 m)45. Shelf break, seaward limit of exposed bedrock and GZW locations are from Ottesen et al.22. Geographical boundaries from European Environment Agency46. EDF, Extended Data Figure. Inset shows the grounded margin of the Scandinavian Ice Sheet in Norway following the Last Glacial Maximum, based on the reconstruction of Sejrup et al.20, which incorporates available empirical age constraints (white circles). Maps produced using ESRI ArcMap.
