Figure 5. Schematic reconstruction of the AIS (a snapshot of a situation after the LGM episode of collapsing and surging). It shows: (a) the "western'' - Laurentide (LIS), Greenland (GIS) and Eurasian (BASIS) - ice sheets; (b) the Arctic, Norwegian-Greenland and Baffin-Bay floating ice shelves (their ice flowlines are long-dashed); (c) the ice shelves that got thrust upon adjacent continental margins (their ice flowlines are short-dashed). Also shown: (d) some margins of continental shelves (by bold dotted lines), (e) intensely calving ice barriers (by small triangles scattered in front of the barriers). Ice shelves grounding on the Atlantic and other sills are not shown.