Not exact matches
When salt is buried
under heavier rocks, it rises buoyantly in vast sheets and fingers; it may even fountain aboveground and
flow like a
glacier.
One 2004 NASA - led study found that most of the
glaciers they were studying «
flow into floating ice shelves over bedrock up to hundreds of meters deeper than previous estimates, providing exit routes for ice from further inland if ice - sheet collapse is
under way.»
Because, and this is the crux of the new paper, scientists have discovered deep channels where warmer water can
flow right
under the
glacier.
I suppose that as the
under side of the
glacier melts, the resulting fresh water mixes with the adjacent salt water, making it lighter and causing it to
flow upwards along the
under side of the ice.
Snow falls on
glaciers, which
flow downstream
under gravity.
Alastair notes that increased water vapour will carry more energy to the surface of the
glaciers, likewise these increased water
flows over, through and
under the
glaciers is also transferring vast amounts of energy into the ice.