Science news articles about 'ground ice'

  • Colossal Antarctic ice-shelf collapse followed last ice age

    ... 000 years ago, this thick, grounded ice sheet broke apart in dramatic ... that the margin of the grounded ice sheet retreated rapidly after the ... rise. "The ice shelf slows the flow of grounded ice from the ...
  • How stable is the West Antarctic Ice Sheet?

    ... a further floatation of the grounded ice masses with a progressing acceleration ... components of an ice sheet (floating ice shelves, grounded inland ice on the subsurface ...
  • West Antarctic ice comes and goes, rapidly

    ... , they no longer buttress the grounded ice upstream, which then flows faster ... bedrock, retreats converting more grounded ice to floating ice shelves. Eventually, nearly all ...
  • Nature study reveals rapid ice-wedge loss across Arctic

    ... of permafrost. This melting ground ice greatly affects the storage and ... that rapid melting of ground ice has become widespread throughout ... , defined as continuously frozen ground for two-plus years, ...
  • Giant channels discovered beneath Antarctic ice shelf

    ... discovered huge ice channels beneath a floating ice shelf in ... water flow beneath the grounded ice sheet is responsible for ... rather than meltwater exiting the grounded ice sheet. Now, with the ...
  • Map characterizes active lakes below Antarctic ice

    ... For decades, researchers flew ice-penetrating radar on airplanes ... needed to differentiate floating ice from grounded ice. This time it was ... which she could infer ice elevation. Repeating the measurement ...
  • Warming ocean water undercuts Antarctic ice shelves

    ... threaten the stability of floating ice shelves in Antarctica, according ... today in Nature Geoscience. Ice shelves are thick floating plates ... flow of grounded ice off the continent. While ice shelves take ...
  • More ice loss through snowfall on Antarctica

    ... research suggested the Antarctic ice sheet might grow under ... Antarctica is countervailed by enhanced ice loss along the coastline," ... additional snowfall elevates the grounded ice-sheet but less so the ...
  • Antarctic ice shelves rapidly thinning

    ... shows. West Antarctic ice shelves lost ice throughout the entire ... . "The ice shelves buttress the flow from grounded ice into the ... the researchers estimate the ice shelves restraining the unstable ...
  • West Antarctic ice shelves tearing apart at the seams

    ... less able to hold back grounded ice upstream, according to glaciologists ... past decade. The affected ice shelves include the floating ... the margins' resistance to ice flow and causing additional ...
  • Computer model documents the history of the West Antarctic ice sheet

    ... melting of the great polar ice sheets, and the resulting rise ... fragility of the West Antarctic ice sheet (WAIS), whose bed lies ... the natural flow between the grounded ice sheet itself and the floating ...
  • Greenland ice stores liquid water year-round

    ... Greenland is Important The Greenland Ice Sheet is vast, covering ... moving glaciers and exacerbating ice velocity and calving increasing ... regions with climate change. Ground-penetrating radar and a roving ...
  • Greenland Ice Sheet more vulnerable to climate change than previously thought

    ... that the soft, spongy ground beneath the ice sheet plays in its ... study incorporates new evidence from ground-based surveys, which show ... in the soft ground beneath the Greenland Ice Sheet. This makes ...
  • ESA's ice mission delivers first data

    ... first data just hours after ground controllers switched on the ... the role ice plays in the Earth system. "The combined ground teams ... the ground will be optimised to provide the best-ever ice thickness ...
  • Scientists create highly ordered artificial spin ice using nanotechnology

    ... jam spin ice and get it into a well-ordered ground state ... individual excitations out of this ground state within their sample, ... the naturally occurring spin-ice systems this ground state is predicted but ...

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