Giant Void Hidden Under Antarctica’s Ice Threatens Vast Glacier

Adjust Comment Print

The hollow space that has taken 14 billion tons of ice, is located under the Thwaites glacier in West Antarctica.

It is noted that the Thwaites glacier in West Antarctica is known for its rapid movement, the speed of which sometimes reaches two miles a year.

The cavern sits where almost 14 billion tons of ice used to be, all of which melted in the last few years. It is now responsible for approximately 4 percent of global sea level rise and holds enough ice to raise the world ocean a little over 2 feet. The bedrock under Thwaites and other glaciers in the region slopes downward further inland, allowing that warm water to rot out the glaciers from underneath.

However, the researchers say that the size and growth rate of the hole surprised them.

Scientists spotted the concealed void thanks to a new generation of satellites, Rignot noted.

The data comes from NASA's Operation IceBridge, a program that flies radar-equipped planes over the poles to map out glaciers and ice sheets in three dimensions.

Lead author Pietro Milillo of JPL says the size of the cavity under the glacier "plays an important role in melting".

Higuain happy to be playing under Sarri once again
If you think in the Carabao Cup, we had to play against Liverpool, Tottenham , we will have to play against City. We did a fantastic game, maybe one of the best of the season, so we are happy.

Gomez suffers fresh injury blow as Liverpool defender needs surgery
If they make the semi-final of the FA Cup they must suspend another game. "They have all the midweeks with the Champions League ".

More than 40 mummies discovered in Egyptian desert province
More than 40 mummies from 305 to 20 B.C. have been discovered in burial chambers in Minya , the desert province in Egypt. Pottery, papyri and colorful mummy cases were also unearthed.

Scientists say that this is a very important find because the bigger the hole is, the more heat and water can get under the glacier, thereby melting it faster.

Even with this accelerating retreat, however, melt rates on this side of the glacier are lower than on the western side, they said.

Thwaites Glacier is now responsible for about four per cent of global sea level rise, researchers said.

"We are discovering different mechanisms of retreat", Millilo said. This summer, the U.S. National Science Foundation and the British Natural Environmental Research Council are launching the International Thwaites Glacier Collaboration, a five-year field project that aims to get to the bottom of the glacier's processes and features. Could you imagine how fingers under the glacier, to him from below to melt.

There's no way to monitor Antarctic glaciers from ground level over the long term.

In the part of the Thwaites Glacier where the cavity has been detected, the scientists have observed a "complex pattern of retreat and ice melt" with parts of the glacier retreating about 2,625 feet per year. He would melt completely would be a sea level rise of 65 cm.

"The researchers on the current study hope that these new results will help inform that team's work", the news portal continued. This data also shed some light on another concern about the glacier's grounding line, the point at which the glacier starts to depart from land and float on the sea.