The North East Greenland Ice Stream (NEGIS) is, unsurpisingly enough, in NE Greenland, flows to the NE and out to the ocean. NEGIS is unusual among Greenland's glacier in that it originates far in the interior of the ice sheet and doesn't have a clearly delineated trough through which it flows. The NEGIS grounding line is vulnerable to melt and retreat due to ocean warming, and the question PSICE is studying is when and to what degree the interior of the ice stream will be affected by the coastal changes.