Quantcast
Last updated on April 20, 2014 at 17:20 EDT

Latest Ice stream Stories

shutterstock_107927768
2012-07-25 20:53:16

Lee Rannals for redOrbit.com - Your Universe Online Scientists believe they have discovered a hidden rift valley that may be contributing to ice loss in West Antarctica. University of Aberdeen and British Antarctic Survey (BAS) experts made the discovery below Ferrigno Ice Stream, which is a very remote region that has only been visited once before. The team has reveled that the ice-filled ancient rift basin is connected to the warming ocean, which impacts ice flow and loss. The...

Elephant Seals Assist In Ice Shelf Research
2012-06-22 14:47:44

Brett Smith for redOrbit.com In the Bizarro world of climate change crusaders, what is good is bad, what is up is down, and what is hot is cold. New research published this week in the American Geophysical Union journal Geophysical Research Letters asserts that an Antarctic ice shelf melting slower than expected is good news for those of us who dislike massive flooding – but bad news for those sounding the alarm against global warming. During the two-year study, researchers led...

Image 1 - West Antarctic Ice Shelves Tearing Apart at the Seams
2012-03-28 04:31:05

[ Watch the Video ] A new study examining nearly 40 years of satellite imagery has revealed that the floating ice shelves of a critical portion of West Antarctica are steadily losing their grip on adjacent bay walls, potentially amplifying an already accelerating loss of ice to the sea. The most extensive record yet of the evolution of the floating ice shelves in the eastern Amundsen Sea Embayment in West Antarctica shows that their margins, where they grip onto rocky bay walls or...

134205989
2011-12-05 12:44:44

Scientists have created a detailed map called BEDMAP of Antarctica's rock bed that lies underneath its icy surface. The map gives a view of the landscape beneath the ice, and incorporates decades of survey data acquired by planes, satellites, ships and even people on dogsleds. In the map, the highest elevations are marked in red/black, while the light blue color shows the extent of the continental shelf.  The lowest elevations are dark blue, some of which lie below today's seal...

9cd932c2300a479cac78df91734af177
2011-07-12 11:00:00

Some of the last images from ESA's ERS-2 satellite have revealed rapidly changing glacial features in Greenland. In its final days, the veteran satellite gave us frequent views of the Kangerdlugssuaq glacier and its advancing ice stream. Before it retired on 6 July, ESA's ERS-2 Earth observation satellite entered an orbit to capture radar images of the same area on the ground every three days, rather than its previous 35-day cycle. Images of the Kangerdlugssuaq glacier in eastern...

f3db85f360effdb1975456b49a697913
2011-07-09 10:20:00

Some of the last images from ESA's ERS-2 satellite have revealed rapidly changing glacial features in Greenland. In its final days, the veteran satellite gave us frequent views of the Kangerdlugssuaq glacier and its advancing ice stream. Before it retired on 6 July, ESA's ERS-2 Earth observation satellite entered an orbit to capture radar images of the same area on the ground every three days, rather than its previous 35-day cycle.  Images of the Kangerdlugssuaq glacier in eastern...

e35c539f6002da40580a3ce38ba3c8bb1
2011-01-27 09:26:45

Hotter summers may not be as catastrophic for the Greenland ice sheet as previously feared and may actually slow down the flow of glaciers, according to new research. A letter published in Nature on 27 January explains how increased melting in warmer years causes the internal drainage system of the ice sheet to 'adapt' and accommodate more melt-water, without speeding up the flow of ice toward the oceans. The findings have important implications for future assessments of global sea level...

ba1ef779c89539f47281f0128a63aaf81
2009-08-14 12:25:00

Experts say one of the largest glaciers in Antarctica is thinning four times faster than it was 10 years ago, BBC News reported. The surface of the ice at the Pine Island glacier in west Antarctica is now dropping at a rate of up to 50 feet a year, according to a recent study of satellite measurements. The work, by British scientists and published in Geophysical Research Letters, shows that the glacier has lowered by almost 300 feet since 1994, which has serious implications for sea-level...

5343a68ee94781e7539cd0157ea0cfe81
2009-07-20 14:52:59

A new study published this week takes scientists a step further in their quest to understand how Antarctica's vast glaciers will contribute to future sea-level rise. Reporting in the journal Nature Geoscience, scientists from British Antarctic Survey (BAS) and University of Durham describe how a new 3-d map created from radar measurements reveals features in the landscape beneath a vast river of ice, ten times wider than the Rhine*, in the West Antarctic Ice Sheet. During 2007, two...

a4fa02321ce5cabb0c1513302a1e87f61
2009-02-16 15:42:18

The Greenland and Antarctica ice sheets are melting, but the amounts that will melt and the time it will take are still unknown, according to Richard Alley, Evan Pugh professor of geosciences, Penn State. In the past, the Greenland ice sheet has grown when its surroundings cooled, shrunk when its surroundings warmed and even disappeared completely when the temperatures became warm enough. If the ice sheet on Greenland melts, sea level will rise about 23 feet, which will inundate portions of...