"> +49-89-2180-6703 The Jakobshavn Glacier, the largest glacier in Greenland is moving ice from land into the ocean at a speed that appears to be the fastest ever recorded. By the end of this century, its calving front could retreat as far back as the head of the fjord through which the glacier flows, about 50 km upstream from where it is today. Jakobshavn Glacier. Geosciences Instrumentation and Data Systems, Geochemistry, Mineralogy, Petrology & Volcanology, Stratigraphy, Sedimentology and Palaeontology, Greenland’s fastest glacier reaches record speeds, http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.html, Brief Communication: Further summer speedup of Jakobshavn Isbræ, Read this press release in simplified language, Iceberg in front of Jakobshavn Isbræ calving front, Tabular iceberg in front of the Jakobshavn Isbræ terminus. 6 On average, the glacier moved nearly three times faster in 2012 than it did in the mid-1990s. Try this simple experiment for yourself. You need to be fairly fit to withstand the journey there, which Id say was a tad more than bumpy!. She's Canadian and I am an American. These flow rates are unprecedented: they appear to be the fastest ever recorded for any glacier or ice stream in Greenland or Antarctica, the researchers say. from Jakobshavn Isbrae to investigate the processes driving its dynamic evolution. Currently, there’s no good way for ice scientists to measure such slow velocities in one measurement. Some features of www.egu.eu will not appear or function properly if your An iceberg calved from the rapidly accelerating Jakobshavn Isbræ floats in Greenland’s Disko Bay (Image: Courtesy of Ian Joughin, PSC/APL/UW). In summer 2012, Greenland's Jakobshavn Isbrae Glacier raced more than 150 feet (46 meters) per day, faster than any glacier on Earth. Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. This week, we reflect on the question: "where do we go from here?" In the case of Jakobshavn Isbræ, the thinning and retreat coincides with an increase in speed. 2). Wow - what a Glacier Now, Ive seen a few glaciers in my time, but nothing as spectacular as this! Both of these processes contribute about the same amount to sea-level rise from Greenland. It is a non-profit interdisciplinary learned association of scientists founded in 2002. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. This means that, even though the glacier is flowing towards the coast and carrying more ice into the ocean, its calving front is actually retreating. dana.floricioiu@dlr.de, Bárbara Ferreira We relate changes in glacier speed to geometry through variations It was established in September 2002 as a merger of the European Geophysical Society (EGS) and the European Union of Geosciences (EUG), and has headquarters in Munich, Germany. Notice that the flow speed of the glacier has increased significantly from 1992 to 2000. Department of Earth and Space Sciences, University of Washington Subscribe to our monthly newsletter and stay up to date with the latest EGU news. Freeze dates in the region are now occurring on average six days later than in the past, and the ice is breaking up on average around 18 days earlier. Subscribed journalists and other members of the media receive EGU press releases under embargo (if applicable) 24 hours in advance of public dissemination. Currently, there’s no good way for ice scientists to measure such slow velocities in one measurement. 2). Many glaciers in Greenland and in the Antarctic Peninsula are accelerating, which is generally attributed to warmer conditions and more meltwater lubricating the bed of the glacier. Greenland’s Jakobshavn Glacier Picks Up Speed … Key Facts. Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. Greenland's Jakobshavn glacier dumps more water into the ocean in a day than New York City uses in one month, and that rate is double what it was merely a decade ago. The Jakobshavn Glacier in Greenland spent many years moving between 5,700 and 6,700 meters per year. Principal Physicist and Affiliate Associate Professor, Earth and Space Sciences The Jakobshavn Isbrae (the Danish word for glacier) is a massive river of ice from the Greenland ice sheet to an Atlantic ocean fjord and is thought – there is no way of proving this – to be the source of the giant iceberg that sank the Titanic in 1912. The Jakobshavn Glacier, the largest glacier in Greenland is moving ice from land into the ocean at a speed that appears to be the fastest ever recorded. Jakobshavn Isbræ, a tidewater glacier that produces some of Greenland’s largest icebergs andhighestspeeds,reachedrecord-highflowratesin2012(Joughinandothers,2014).Weuseterrestrial ... term variations in speed on long-term glacier dynamics. As you learned in the video, the speed of the Jakobshavn glacier dramatically increased from one foot per day to 113 feet per day, largely due to meltwater seeping underneath the glacier. That's 11 miles (17 kilometers) per year. At its calving front, where the glacier effectively ends as it breaks off into icebergs, some of the ice melts while the rest is pushed out, floating into the ocean. Here we present observations of surface velocity, mélange rigidity, and surface elevation to examine its behaviour over the last decade. He won the Association of British Science Writers award for science writer of the year four times. Greenland Is Melting: We Need To Worry About What’s Happening On The Largest Island In The World, 3 Reasons For Information Exhaustion and What To Do About It, Watch Your Ums and Uhs -- Spoken Communication Is About More Than Words, COVID-19 Is Triggering More End-of-Life Planning – and Young People Want In On The Discussions, The Silver Lining: Reflecting on 2020's Challenges and Opportunities, 3 Ways Physical Activity Changes The Brain's Very Structure, America: Hitching Our Wagon to the World and to the Stars. What Is The Main Thing Keeping People Divided and Stuck? The European Geosciences Union (www.egu.eu) is Europe’s premier geosciences union, dedicated to the pursuit of excellence in the Earth, planetary, and space sciences for the benefit of humanity, worldwide. In the summer of 2012, the glacier reached a record speed of more than 17km per year - more than 46m per day. But even when averaged over the whole year, the glacier’s flow has accelerated threefold since the 1990s. ... but many factors can speed or slow the rate of ice loss." You'll need a small wooden block and an ice cube. Jakobshavn Isbræ (Jakobshavn Glacier) is moving ice from the Greenland ice sheet into the ocean at a speed that appears to be the fastest ever recorded. dshean@uw.edu, Dana Floricioiu Researchers from the University of Washington and the German Space Agency (DLR) measured the dramatic speeds of the fast-flowing glacier in 2012 and 2013. The scientists used satellite data to measure the rate of summer change in Greenland. A fast-moving Arctic glacier which has earned a place in history is now accelerating even more quickly. Jakobshavn Isbræ, an outlet glacier off the west coast of Greenland, is losing mass faster than previously thought, due to increased melt water passing through it, as reported in a new paper.The glacier’s rapid trajectory of thinning may well represent the Greenland Ice Sheet (GrIS) ice loss rate in the near future, which could mean faster sea level rise than currently projected. The new observations show that in summer of 2012 the glacier reached a record speed of more than 10.5 miles (17 kilometers) per year, or more than 150 feet (46 meters) per day. Researchers from the University of Washington and the German Space Agency (DLR) measured the dramatic speeds of the fast-flowing glacier in 2012 and 2013. The team is composed of Ian Joughin, Benjamin E. Smith and David E. Shean from the University of Washington, Seattle, US, and Dana Floricioiu from the German Aerospace Center (DLR), Weßling, Germany. Jakobshavn is now flowing more slowly, thickening, and advancing toward the ocean instead of retreating farther inland. The 2014 EGU General Assembly is taking place is Vienna, Austria from 27 April to 2 May 2014. My wife Marie and I are a mixed couple. Find out how it beat the glacial speed record and see more beautiful photos. “At the end of the analysis, when looking at trend analysis results, we were stunned to observe such a dramatic ice decline during a period of only 20 years”, Surdu said. ian@apl.washington.edu, Ben Smith In the summer of 2012 the glacier reached a record speed of more than 17 kilometres per year, or over 46 metres per day. Header image: Iceberg from Jakobshavn Isbræ, Disko Bay. Slide a wooden block across a table or desk. Jakobshavn Isbræ (Jakobshavn Glacier) is moving ice from the Greenland ice sheet into the ocean at a speed that appears to be the fastest ever recorded. Why the speed-up? NASA research shows that Jakobshavn Glacier, which has been Greenland’s fastest-flowing and fastest-thinning glacier for the last 20 years, has made an unexpected about-face. The Jakobshavn Glacier moves slower in the winter, but its average flow speed is three times what it was back in the 1990s, according to the news release. The Chain Around His Heart and The Time for Healing. "> +1-206-221-3177 In the summer of 2012, Jakobshavn accelerated to speeds not seen before, surging at a rate of 17 kilometers (10 miles) per year. This week, we focus on seeing things differently... of looking from a different perspective, with an open mind and an open heart. (Kindle book). At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as that in the mid-1990s, while the peak sum- Weßling, Germany Melting of Greenland's glaciers contributes to sea-level rise, 2,3,4 and is expected to fuel global warming. bsmith@apl.washington.edu, David Shean browser does not have JavaScript enabled, or does not The speed of the Jakobshavn Isbræ — the Jakobshavn Glacier — in western Greenland was measured by researchers from the University of Washington and … Greenland ; Qaasuitsup Municipality ; Ilulissat ; Things to do in Ilulissat ; Jakobshavn Glacier; Search. This visualization was created to support a talk at the Fall 2004 AGU meeting. The finding is important for many reasons. If you wish to receive our press releases via email, please use the Press Release Subscription Form at http://www.egu.eu/news/subscribe/. 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