The area surveyed had been hidden beneath part of the floating ice shelf extending from Thwaites Glacier, which broke off in 2002, … Why Scientists Are So Worried About Antarctica's Doomsday Glacier Thwaites Glacier in western Antarctica is in serious danger. Flowing off the west of the Antarctic continent, Thwaites is almost as big as Great Britain. A look at maps of the region’s ice loss makes this clear, says Nick Holschuh, a […] It's a giant mass of more than 192,000 square kilometers (74,000 square miles) -- … From 1992 to 2011, the centre of the Thwaites grounding line retreated by nearly 14 kilometres (nine miles). (CNN)Deep channels discovered under the Antarctic's so-called "Doomsday glacier" may be allowing warm ocean water to melt the underside of ice, according to scientists collecting data from an area crucial to understanding sea-level rise. At 74,000 square miles, the Thwaites Glacier covers an area the size of Florida or Great Britain. Why is the Thwaites glacier so important? If one goes, they could all go – and that chain-reaction would raise sea levels by an additional 8 feet (2 metres). By Sam Ellis Jul 14, 2020, 2:10pm EDT The $1,000 wireless speaker that really IS worth the price: Naim Mu-so Qb review Naim's incredible Mu-So Qb takes you back to the good old days - where the … Once this event happens, the remains of West Antarctic ice will be compromised. To record data from under Thwaites glacier. To give a detailed description of Thwaites glacier. The big issue is that there are ice sheets in the Thwaites Glacier that are grounded below sea level, so it’s exposed to relatively warm seawater from below. [Image: Jemma Cox and David Vaughan] What seems to be taking place is that deep warm ocean water is streaming to the coast and down to the ice front, thawing the ice structure. Source: Wikipedia. The more dense a glacier is, the more blue it appears. November 13, 2020 admin Science 0. Why are glaciers important? Image copyright Alex Mazur Image caption The icebreaker, the Nathaniel B Palmer, mapped more than 2,000 sq km of seafloor in front of the glacier Scientists may just have identified Thwaites Glacier's A view of the sea ice from the Nathaniel B. Palmer icebreaker on the way to Thwaites Glacier. Glaciers everywhere might be melting, but only one has earned the most terrifying nickname: the Doomsday Glacier. Pine Island Glacier drains much of the marine-based West Antarctic Ice Sheet, and it has a configuration susceptible to rapid disintegration and recession. The GHOST team will survey these mountains. Deep channels discovered under the Antarctic's so-called "Doomsday glacier" may be allowing warm ocean water to melt the underside of ice, according to … Thwaites glacier, which is part of the west Antarctic ice sheet, is thought to have lost more than 500bn tonnes of ice in a period of roughly four decades. That's worrying news for coastal cities. Furthermore, the melting of the glacier is happening faster than expected and it is sending more ice into the Amundsen Sea. (*) To stop the melting of the glaciers. A Its melting poses a big threat to the planet. Find out why this is so important to unlocking how rapidly the glacier might disappear. The Thwaites glacier in Antarctica is the most important ice structure in the world. That's worrying news for coastal cities. To give reasons for a scientific exploration. Thwaites is remote, even by Antarctic standards. The paper notes that Thwaites glacier covers 74,000 sq miles (192,000 sq km), … What is the purpose of the “icefin” submarine? Flowing off the west of the Antarctic continent, Thwaites is almost as big as Great Britain. Carbon Brief asked Anandakrishnan why it is so important for scientists to study Thwaites and what, specifically, he would be doing as co-lead of the GHOST project. The Thwaites glacier has experienced significant flow acceleration since the 1970s. Thwaites Glacier Aero Survey 2019 28. "I think this is a big step towards helping understand that," he added. Exceptional sea-ice break up in early 2019 enabled the icebreaker to survey more than 2,000 square kilometers of sea floor at the glacier's ice front. Home Science Why Scientists Are So Worried About Antarctica’s Doomsday Glacier Why Scientists Are So Worried About Antarctica’s Doomsday Glacier. In theory, the Arctic remains colder than the equator because more of the heat from the sun is reflected off the ice, back into space. (*) Its melting poses a big threat to the planet. Why is the glacier so important? The area surveyed had been hidden beneath part of the floating ice shelf extending from Thwaites Glacier, which broke off in 2002, and was then often inaccessible due to thick sea-ice cover. If Thwaites were to collapse, it could lead to an increase in sea levels of around 25 inches (64 centimeters) -- and the researchers are trying to find out how soon this is likely to happen. The important takeaway here is that Thwaites will melt to a point that the glacier will collapse. Why The U.S. And Britain Are Teaming Up To Study A Massive Glacier In Antarctica A major scientific research project announced Monday will focus on the Thwaites Glacier in … Its melting poses a big threat to the planet. The big issue is that there are ice sheets in the Thwaites Glacier that are grounded below sea level, so it’s … The 3.5 metre-long icefin carries HD cameras, sonar, and instruments for monitoring different properties of the water, such as the flow, salinity, oxygen and temperature. It’s a majestic sight, with its buoyant front, or “ice shelf”, pushing far out to sea and kicking off huge icebergs. Why Antarctica’s Thwaites glacier is so “terrifying” 27. The focus is Thwaites Glacier, which is roughly the size of Florida and sits on the western edge of Antarctica. It's swiftly melting, and a collapse could cause a dramatic increase in sea level rise. Why are Some Glaciers Blue? Thwaites Glacier in Antarctica flows over mountains that stick out of the overlying ice. With delays, detours and research conducted en route, it … Officially called the Thwaites Glacier, this mass of ice nestled into the western edge of Antarctica is melting at an alarming rate. Once that melts, we are looking at a 10 to 13-foot push of sea into places like New York and Miami. Over the past 30 years, the amount of ice flowing out of the region has nearly doubled. Why is Thwaites Glacier important? Why is Pine Island Glacier important? (*) The glacier is expected to melt in 3-4 days. C There is a submarine stuck beneath it. The topography beneath Thwaites Glacier, above, is largely below sea level and slopes inland. But satellite monitoring indicates this glacier is melting at an In the Flowing off the west of the Antarctic continent, Thwaites is almost as big as Great Britain. Source: Wikipedia Thwaites is almost as big as Britain. (*) To drill a hole in the ice. They have not analysed their data yet, so claims that they have confirmed “the Thwaites glacier is melting even faster than scientists thought…” are premature. (*) To give reasons for a scientific exploration. Educational #infographics, information leaflets and interactive tool are available at #ThwaitesGlacier #education page TOEIC Reading Comprehension Exercises Part 7 is waiting for you! As the glacier withdraws, more ice appears, and as the surface part of each of these ice layers that appear gets bigger, it … It is located more than 1,600 kilometres from the nearest research station. The high cliffs at the ice front of Thwaites Glacier, which accounts for about 4% of global sea-level rise. Why scientists are so worried about this glacier It’s at the heart of Antarctica and on the verge of collapse. Glaciers are huge sheets of ice moving very slowly, and contain vast amounts of water. (*) There is a submarine stuck beneath it. Credit: NASA/James Yungel. But satellite observations indicate that this glacier is melting at an accelerating rate. These bright white spots reflect excess heat back into space and keep the planet cooler. Water cannot absorb the blue from the light spectrum, and so Hits: 3. (*) The “icefin” submarine is very fast. Before now, he said, the ITGC has not been able to precisely quantify sea-level rise in West Antarctica "because there was so much uncertainty about understanding the ice sheet processes and how the glaciers will over time respond.". Updated 1619 GMT (0019 HKT) September 9, 2020. It is expected that the entire enterprise will take 3-4 days to complete. The GHOST team will survey these mountains. Why is the melting of the cavity so alarming? Glaciers everywhere might be melting, but only one has earned the most terrifying nickname: the Doomsday Glacier. What is Thwaites Glacier and why is it so important? A password will be e-mailed to you. So some other scientists think that if the entire Thwaites glacier were to collapse, it could destabilize surrounding glaciers on the Antarctic ice sheet as well. By Sarah Derouin 19 December 2019. Thwaites glacier is extremely hard to reach, which means that it took weeks for the researchers to get their equipment to the drilling spot. Jordan said that suggestions of geoengineering and blocking the channels is not logistically feasible at such a remote site. Ice acts like a protective cover over the Earth and our oceans. The Thwaites Glacier is the largest, most menacing source of rising sea levels all over the world, and it is melting at an alarming rate. Not every thing that changes dramatically, or has the potential to do so, is solely or mainly … Do you like our tests? This is the same reason that large bodies of water appear to be blue. Why is Thwaites Glacier so important, and how are scientists investigating it? Scientists may just have identified Thwaites Glacier's Achilles heel. "And so, that's why Thwaites becomes really important because it could be a real, turbo-charging effect for how fast sea level rises around the world." Anandakrishnan also gives a sense of what it is like to visit Thwaites, one of the world’s most remote places: Thwaites Glacier (75°30′S 106°45′W / 75.500°S 106.750°W / -75.500; -106.750), sometimes referred to as the Doomsday Glacier,[1] is an unusually broad and vast Antarctic glacier flowing into the Pine Island Bay, part of the Amundsen Sea, east of Mount Murphy, on the Walgreen Coast of Marie Byrd Land. What is Thwaites Glacier and why is it so important? Glaciers are huge sheets of ice moving very slowly, and contain vast amounts of water. (*) The Thwaites is a very inhospitable place. Why is the melting of the cavity so alarming? It is a majestic sight, with its blossoming façade, or “ice shelf,” as it rushes away into the sea and sets off huge icebergs. The team collected data from the glacier and adjoining Dotson and Crosson ice shelves from January to March 2019. It’s a majestic sight, with its buoyant front, or “ice shelf”, pushing far out to sea and kicking off huge icebergs. Recover your password Scientists predict its ice sheet may break off, increasing sea levels. The Thwaites Glacier is the largest, most menacing source of rising sea levels all over the world, and it is melting at an alarming rate. At 74,000 square miles, the Thwaites Glacier covers an area the size of Florida or Great Britain. To reach Thwaites glacier before the scientists. Why is Thwaites Glacier so important? What is the purpose of the text? "Thwaites Glacier itself is probably one of the most significant glaciers in West Antarctica, because it's so large, because we can see it's changing today," Dr. Tom Jordan, an aero-geophysicist at BAS who led the airborne survey, told CNN. Scientists from the International Thwaites Glacier Collaboration (ITGC) collected data by flying over the glacier in a British Antarctic Survey (BAS) Twin Otter aircraft and mapping the sea floor from the US Antarctic Program icebreaker RV Nathaniel B. Palmer. It’s a majestic sight, with its buoyant front, or “ice shelf”, pushing far out to sea and kicking off huge icebergs. The cavities hidden beneath the ice shelf are likely to be the route through which warm ocean water passes underneath the ice shelf up to the grounding line, they said. The big issue is that there are ice sheets in the Thwaites Glacier that are grounded below sea level, so it’s … The Thwaites is a very inhospitable place. 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