"Glacier flow" refers to the movement or motion of a glacier. It happens when the ice of a glacier gradually slides or moves downhill due to gravity, often at a slow pace like a very slow-moving river of ice. Full definition
A full explanation will require numerical modeling of glacier flow, but observations to date suggest that ice shelves act as «braking» systems on the glaciers behind them. (nsidc.org)
If enough fresh water from melting glaciers flows into the North Atlantic, this would make the seawater less salty and less dense, so that it couldn't sink anymore. (acespace.org)
Individual chunks seen in the image range from 1 to several kilometers long, and chains of the bergs seem to mark the edges of nitrogen glaciers flowing from the icy highlands onto a broad plain. (sciencemag.org)