Snow precipitation is offset mainly by continental ice moving seaward by three mechanisms ice-shelf flow, ice-streamechanisms ice-shelfow.
However, some lingering mysteries remain, such as the effects of the oversimplified treatment (or absence) of ice sheet ocean interactions, basal flow (ice-sheet sliding and subglacial sediment deformation) and ice-stream processes in the authors' simulations.
Current ice flow directions (black solid arrows) show flow has been diverted northward into Horseshoe Glacier (HSG).
Detailed mapping over a 57,400 km2 area of southwestern Saskatchewan confirms previous reconstructions of a former southerly flowing ice stream, demarcated by a 800 km long corridor of megaflutes and mega-scale glacial lineations (Ice Stream 1) and cross cut by three, formerly southeast flowing ice streams (Ice Streams 2A, B and C).
Flowing ice An image of the northern rim of Pluto's heart shape shows evidence of flowing nitrogen ice, comparable to flowing water ice in glaciers on Earth.
Among the latest, a new study by Mathieu Morlighem, Eric Rignot, and others has taken a new approach to improve our understanding of the flowing ice atop Greenland.
The highest rates of surface lowering in the grounded areas surrounding TG appear to coincide with the fastest flowing ice (Fig. 1a, inset).
The images, taken by the New Horizons probe while it was travelling at around 11 miles a second, reveal Pluto, which is 4.6 billion miles from Earth, to be an icy world with glacier-like flowing ice on its surface.
This isn't the damning judgment it might seem, because this is no ordinary glacier: it's the Siachen, the largest in Asia and, dare I say it, the most human chunk of flowing ice on earth.
During the night the slowly flowing ice cracks and groans its way downhill.
