Researchers have observed extremely high rates of melting at the bottom of the Greenland Ice Sheet, caused by huge quantities of meltwater falling from the surface to the base. As the meltwater falls, energy is converted ...
Earth Sciences
Feb 21, 2022
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Massive extraction of groundwater can resolve a puzzle over a rise in sea levels in past decades, scientists in Japan said on Sunday.
Earth Sciences
May 20, 2012
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Scientists have discovered huge ice channels beneath a floating ice shelf in Antarctica. At 250 metres high, the channels are almost as tall as the Eiffel tower and stretch hundreds of kilometres along the ice shelf. The ...
Earth Sciences
Oct 6, 2013
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Against the backdrop of a rapidly warming planet, the need to better understand the nature and long-term impact of positive climatic feedback loops—processes that accelerate the effects of warming—becomes critically important.
Earth Sciences
Aug 22, 2022
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The cause of rapid sea level rise in the past has been found by scientists at the University of Bristol using climate and ice sheet models.
Earth Sciences
Jul 11, 2012
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Researchers who are building the highest-resolution map of the Greenland Ice Sheet to date have made a surprising discovery: two lakes of meltwater that pooled beneath the ice and rapidly drained away.
Earth Sciences
Jan 21, 2015
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The hour-long walk from the local railway station to the Morteratsch glacier is a winding trek through a valley littered with rocks that the retreating ice left behind.
Environment
Sep 20, 2013
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Surface meltwater draining through the ice and beneath Antarctic glaciers is causing sudden and rapid accelerations in their flow towards the sea, according to new research.
Earth Sciences
Sep 20, 2019
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A previously unknown canyon hidden beneath two kilometers of ice covering Greenland has been discovered by a group of scientists, led by a team from the University of Bristol.
Earth Sciences
Aug 29, 2013
11
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Stanford scientists have revealed the presence of water stored within a glacier in Greenland, where the rapidly changing ice sheet is a major contributor to the sea-level rise North America will experience in the next 100 ...
Earth Sciences
Oct 15, 2018
0
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Meltwater is the water released by the melting of snow or ice, including glacial ice and ice shelfs over oceans. Meltwater is often found in the ablation zone of glaciers, where the rate of snow cover is reducing. Meltwater can be produced during volcanic eruptions, in a similar way in which the more dangerous lahars form.
When meltwater pools on the surface rather than flowing, it forms melt ponds. As the weather gets colder meltwater will often re-freeze. Meltwater can collect or melt under the ice's surface. These pools of water, known as subglacial lakes can form due to geothermal heat and friction.
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