Remote Sensing Technology Institute The speed of Greenland's fastest glacier, Jakobshavn Isbræ, has varied substantially since its speed-up in the late 1990s. The speed of Jakobshavn Glacier varied between 5,700 and 12,600 metres (18,700 and 41,300 ft) per year between 1992 and 2003. Both of these processes contribute about the same amount to sea-level rise from Greenland. Scientists estimate the glacier added about 1 millimeter to global sea levels from 2000 to 2010; its faster flow into the ocean means Jakobshavn will add even more water over the current decade. This week, we focus on seeing things differently... of looking from a different perspective, with an open mind and an open heart. In the summer of 2012, Jakobshavn accelerated to speeds not seen before, surging at a rate of 17 kilometers (10 miles) per year. Seattle, Washington, USA "> +49 8153 28-1763 Jakobshavn is now flowing more slowly, thickening, and advancing toward the ocean instead of retreating farther inland. 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. Located on the west coast of Greenland, Jakobshavn Isbræ is one of the most rapidly shrinking glaciers in the world. A fast-moving Arctic glacier which has earned a place in history is now accelerating even more quickly. 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. Key Facts. 2). Copyright ©1985 - 2019 InnerSelf Publications. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. Weßling, Germany That's 11 miles (17 kilometers) per year. The speed at which Jakobshavn Isbrae glacier is retreating doubled from 1996 to 2005 (Rignot and Kanagaratnam, 2006;Kerr, 2006). Why the speed-up? Even during the winter months, ice on the lakes of Alaska has begun to decline. These speeds are recorded in the summer, when all glaciers are more likely to be a bit friskier. But right now it is also contributing to sea level rise at a faster rate. 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. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. ... but many factors can speed or slow the rate of ice loss." 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. The fastest glacier in Greenland, the Jakobshavn Isbrae (Glacier), or more correctly in Inuit: Sermeq Kujalleq, has seen an average speed increase of 300 percent since the mid-1990s and 400 percent in the peak summer season. In summer 2012, Greenland's Jakobshavn Isbrae Glacier raced more than 150 feet (46 meters) per day, faster than any glacier on Earth. What Is The Main Thing Keeping People Divided and Stuck? 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. The speed of Greenland's fastest glacier, Jakobshavn Isbræ, has varied substantially since its speed-up in the late 1990s. media@egu.eu. For information regarding the press centre at the meeting and media registration, please check http://media.egu.eu. An iceberg calved from the rapidly accelerating Jakobshavn Isbræ floats in Greenland’s Disko Bay (Image: Courtesy of Ian Joughin, PSC/APL/UW). 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- They expected to find a decline in ice thickness when they embarked on a study of radar observations of 402 lakes near Barrow in Alaska from the European earth resources satellites ERS-1 and ERS-2. 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. Scientists track the calving rate and speed of Jakobshavn in part because the glacier is responsible for draining a large portion of the Greenland Ice Sheet. Jakobshavn Isbrae in Greenland is generally considered to be the fastest glacier in the world, with speeds of up to 40 metres per day. 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. "We are now seeing summer speeds more … Greenland ; Qaasuitsup Municipality ; Ilulissat ; Things to do in Ilulissat ; Jakobshavn Glacier; Search. “Jakobshavn Glacier is of interest because it is the fastest-moving glacier in the world and drains about 7.5 percent of the Greenland Ice Sheet. The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. “We know that from 2000 to 2010 this glacier alone increased sea level by about 1mm”, said Ian Joughin, of the Polar Science Centre at the University of Washington, who led the research. With the additional speed it likely will contribute a bit more than this over the next decade,” explains Joughin. Warming conditions in the Arctic contribute to glacier acceleration in multiple ways. (Kindle book). We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. We must find common ground between young and old, Democrat and Republican, Liberal and Conservative to truly make…, The "slogan" or sub-title for the InnerSelf website is "New Attitudes---New Possibilities", and that is exactly the theme of this week's newsletter. As the Arctic region warms, Greenland glaciers such as Jakobshavn Isbræ have been thinning and calving icebergs further and further inland. He won the Association of British Science Writers award for science writer of the year four times. Try this simple experiment for yourself. Cristina Surdu of the University of Waterloo in Canada and colleagues report in The Cryosphere that there has been a 22% fall in grounded ice – frozen from surface to lakebed – between 1991 and 2011. 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. 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. Seattle, Washington, USA This research is presented in the brief communication ‘Further summer speedup of Jakobshavn Isbræ’ to appear in the EGU open access journal The Cryosphere on 3 February 2014. In the summer of 2012 the glacier reached a record speed of more than 17 kilometres per year, or over 46 metres per day. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. “We were stunned to observe such a dramatic ice decline during a period of only 20 years”. A new study has found that the Jakobshavn Glacier, in the south-west of Greenland, is moving more than 17 kilometres per year, or over 46 metres per day. You need to be fairly fit to withstand the journey there, which Id say was a tad more than bumpy!. ian@apl.washington.edu, Ben Smith For the past 15 years we have spent our winters in Florida and our summers in Nova Scotia. Calved icebergs from the nearby Twin Glaciers are seen floating on the water on 30 July, 2013 in Qaqortoq, Greenland. What's Next For American Evangelicals After Trump Leaves Office? 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 fastest ice flow in Greenland is the glacier Jakobshavn, which moves at the blazingly slow speed of about 16 kilometers in a year—about 180 centimeters per hour. 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. 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. “With the additional speed it will likely contribute a bit more than this over the next decade.”. 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. Jakobshavn Isbrae in Greenland is generally considered to be the fastest glacier in the world, with speeds of up to 40 metres per day. A fast-moving Arctic glacier which has earned a place in history is now accelerating even more quickly. 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. Jakobshavn’s current speed of flow is about 15,000 meters per year. The finding is important for many reasons. In the case of Jakobshavn Isbræ, the thinning and retreat coincides with an increase in speed. This visualization shows flow directions and relative speeds of the Jakobshavn glacier in Greenland. 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. 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. Research from the Arctic shows Greenland’s fastest-flowing glacier has doubled its summer flow pace in a decade, and ice cover on Alaskan lakes is declining. In the last decade, it has more than doubled its speed, zipping down the slope at 12,600 meters per year, or just short of eight miles per year [source: NASA]. Munich, Germany What this means is the glacier is adding more ice to the ocean, which increases the sea-level. EGU, the European Geosciences Union, 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. support it. But other satellite radar imagery has begun to reveal an ominous picture of change elsewhere in the Arctic, on the north slope of Alaska. The Jakobshavn Glacier is located in the southern half of Greenland, which is warmer than the northern part and closer to the Gulf Stream. This article originally appeared on Climate News Network. Ian Joughin She's Canadian and I am an American. In summer, the Jakobshavn Glacier - widely thought to have spawned the iceberg that sank the Titanic - is moving about four times faster than it was in the 1990s. Here we present observations of surface velocity, mélange rigidity, and surface elevation to examine its behaviour over the last decade. Individual glacier behavior—such as glacier speed, thickening, and retreat—responds to climate change AND to local conditions and short-term (year-to-year) variations. 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. TRI is a … In the summer of 2012, Jakobshavn accelerated to speeds not seen before, surging at a rate of 17 kilometers (10 miles) per year. Try this simple experiment for yourself. The speed of the Jakobshavn Isbræ — the Jakobshavn Glacier — in western Greenland was measured by researchers from the University of Washington and … He worked for The Guardian for 32 years, becoming (among other things) letters editor, arts editor, literary editor and science editor. Icebergs “calve” from glaciers – they break off and drift out to sea. 15,16 The speed at which Jakobshavn Isbræ glacier is retreating doubled from 1996 to 2005. However, from 1997 to 2006, the glacier has begun to recede again, this time almost doubling in speed. He has lectured about science and the media in dozens of British and foreign cities. 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. On average, the glacier moved nearly three times faster in 2012 than it did in the mid-1990s. We relate changes in glacier speed to geometry through variations Jakobshavn Isbræ is Greenland's largest outlet glacier1, draining about 6.5 per cent of the ice-sheet area, and it has been surveyed repeatedly since 1991 (ref. This visualization was created to support a talk at the Fall 2004 AGU meeting. How and Why We Use Social Media, Why I Should Ignore COVID-19 and Why I Won't. The 2014 EGU General Assembly is taking place is Vienna, Austria from 27 April to 2 May 2014. These appear to be the fastest flow rates recorded for any glacier or ice stream in … Abstract. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. This week, we reflect on the question: "where do we go from here?" 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. That works out at 46 metres a day. Find out how it beat the glacial speed record and see more beautiful photos. The red flow lines are from 1992 data; the blue flow lines are 2000 data. "We know that from 2000 to 2010 this glacier alone increased sea level by about [.04] of an inch. 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. Here we present observations of surface velocity, mélange rigidity, and surface elevation to examine its behaviour over the last decade. Wow - what a Glacier Now, Ive seen a few glaciers in my time, but nothing as spectacular as this! The Jakobshavn Glacier, which is believed to have been the source of the iceberg that sank the Titanic in 1912, was recorded moving at roughly 10 miles per year – the fastest speed ever recorded. These images, produced using GLISTIN-A radar data as part of NASA's Oceans Melting Greenland (OMG) mission, show how much mass the glacier gained from 2016-17, 2017-18 and 2018-19. Polar Science Center, Applied Physics Lab, University of Washington "> +49-89-2180-6703 Sometimes glaciers surge -- they move up to 10 times faster than their usual speed. And that in turn represented a doubling of flow speeds since 1997. INNERSELF - Watch the spectacular calving of the glacier as caught on film in the Academy Award nominated documentary Chasing Ice. Warmer climate conditions means thinner cover on shallow lakes and a smaller fraction that freeze entirely during the winter months. Slide a wooden block across a table or desk. 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. They note that summer speeds are temporary, with the glacier flowing more slowly over the winter months. Seattle, Washington, USA German Aerospace Center (DLR) The results are published today in The Cryosphere, an open access journal of the European Geosciences Union (EGU). You'll need a small wooden block and an ice cube. We use terrestrial radar interferometric observations from August 2012 to characterize the events that led to record-high flow. Will The Tropics Eventually Become Uninhabitable? Please mention the name of the publication (The Cryosphere) if reporting on this story and, if reporting online, include a link to the paper (http://www.the-cryosphere.net/8/209/2014/tc-8-209-2014.html) or to the journal website (http://www.the-cryosphere.net). Thus, the Jakobshavn Glacier, which was already considered to be one of Greenland's fastest – if not the fastest – is now said to have reached record-breaking moving speeds. The Jakobshavn Glacier in Greenland spent many years moving between 5,700 and 6,700 meters per year. dana.floricioiu@dlr.de, Bárbara Ferreira The Arctic ice sheet is thinning, and most of the planet’s glaciers are retreating as climates warm, so the Jakobshavn glacier is carrying less ice, at a faster rate, over shorter distances than ever before, and by the end of the century could have shifted 50 kilometres upstream. In recent years, its flow into the sea has only increased. The EGU has a current portfolio of 15 diverse scientific journals, which use an innovative open access format, and organises a number of topical meetings, and education and outreach activities. Greenland’s Jakobshavn Glacier Picks Up Speed … 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. While winterflowspeedhasnotincreased substantially overthelast threewinters, thereremains a strong seasonal variation in flow speed that coincides with a cycle of summer thinning and winter thickening. The new observations of slowing for Jakobshavn Glacier in NO WAY call into question rapid climate change. Jakobshavn Glacier. 2). The Chain Around His Heart and The Time for Healing. 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. On average, the glacier moved nearly three times faster in 2012 than it did in the mid-1990s. Jakobshavn Isbræ is Greenland's largest outlet glacier, draining about 6.5 per cent of the ice-sheet area, and it has been surveyed repeatedly since 1991 (ref. In summer 2012, Greenland's Jakobshavn Isbrae Glacier raced more than 150 feet (46 meters) per day, faster than any glacier on Earth. Meanwhile, the Jakobshavn Glacier in the south-west is moving faster than ever. browser does not have JavaScript enabled, or does not In 2012 and 2013, the front retreated more than a kilometre further inland than in previous summers, the scientists write in the new The Cryosphere study. 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. Header image: Iceberg from Jakobshavn Isbræ, Disko Bay. It now moves at 17 kilometres a year. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. On average, the glacier moved nearly three times faster in 2012 than it did in the mid-1990s. Melting of Greenland's glaciers contributes to sea-level rise, 2,3,4 and is expected to fuel global warming. The fastest ice flow in Greenland is the glacier Jakobshavn, which moves at the blazingly slow speed of about 16 kilometers in a year—about 180 centimeters per hour. 2). dshean@uw.edu, Dana Floricioiu "> +1-206-221-8727 The calving front of the glacier is now located in a deeper area of the fjord, where the underlying rock bed is about 1300 metres below sea level, which the scientists say explains the record speeds it has achieved. 2 In just one day—between July 6 and 7, 2010—satellite images showed that Jakobshavn Isbrae lost approximately 2.7 square miles (7 square kilometers) of ice area. Jakobshavn Isbræ is Greenland's largest outlet glacier1, draining about 6.5 per cent of the ice-sheet area, and it has been surveyed repeatedly since 1991 (ref. If you wish to receive our press releases via email, please use the Press Release Subscription Form at http://www.egu.eu/news/subscribe/. Jakobshavn Isbræ, a tidewater glacier that produces some of Greenland's largest icebergs and highest speeds, reached record-high flow rates in 2012 (Joughin and others, 2014). 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. Subscribe to our monthly newsletter and stay up to date with the latest EGU news. As more ice moves from glaciers on land into the ocean, it raises sea levels. Slide a wooden block across a table or desk. With accelerations like this, phrases like “glacial pace” may no longer serve as clichés of lethargic movement. 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. That was because they already had temperature and precipitation records from Barrow dating back five decades. Byrd Glacier is also moving faster than average, but unlike many other glaciers, has been sounded in the past. (Death Is No Big Deal), Standing on the Brink of Hope: November 30th, 2020 Lunar Eclipse, Horoscope Current Week: November 30 - December 6, 2020, Chiron and the Psychoastrology® of the United States of America, Living A Whole Life Is A Choice You Make and A Stand You Take, Working in Harmony with Life-Force Energy, Do Not Confuse Liking and Loving: Love Overcomes Hate, Why Are We Here? The Jakobshavn glacier is Greenland’s fastest-flowing glacier. 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 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. “As the glacier’s calving front retreats into deeper regions, it loses ice – the ice in front that is holding back the flow – causing it to speed up,” Joughin clarifies. Having a map of Jakobshavn’s bed has been a long-time goal of glaciologists. By 2003, this glacier—already among the world's fastest-moving—reached speeds of more than 7.8 miles (12.6 kilometers) per year. According to research published in the European Geosciences Union journal The Cryosphere, summer flow speeds have doubled yet again since a Nasa measurement in 2003. Just as with any rite of passage, whether graduation, marriage, birth of a child, a pivotal election, or the loss (or finding) of a…, Well, the US presidential election is now behind us and it's time to take stock. As the glacier moves we can track changes between images to produce maps of the ice flow velocity,” says Joughin. Science that Changed the World: The untold story of the other 1960s revolutionby Tim Radford. The meeting’s sessions cover a wide range of topics, including volcanology, planetary exploration, the Earth’s internal structure and atmosphere, climate, energy, and resources. Click here for more info and/or to order this book on Amazon. 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. Tim Radford is a freelance journalist. from Jakobshavn Isbrae to investigate the processes driving its dynamic evolution. EGU Media and Communications Manager “We know that from 2000 to 2010 this glacier alone increased sea level by about 1 mm. Some features of www.egu.eu will not appear or function properly if your bsmith@apl.washington.edu, David Shean Currently, there’s no good way for ice scientists to measure such slow velocities in one measurement. On average, the glacier moved nearly three times faster in 2012 than it did in the mid-1990s. My wife Marie and I are a mixed couple. The finding is important for many reasons. Jakobshavn is now flowing more slowly, thickening, and advancing toward the ocean instead of retreating farther inland. 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. In the summer of 2012, the glacier reached a record speed of more than 17km per year - more than 46m per day. Scientists track the calving rate and speed of Jakobshavn in part because the glacier is responsible for draining a large portion of the Greenland Ice Sheet. Department of Earth and Space Sciences, University of Washington Jakobshavn is one of the fastest moving glaciers, flowing at its terminus at speeds that used to be around 20 metres (66 ft) per day but are over 45 metres (150 ft) per day when averaged annually, with summer speeds even higher (as measured 2012-2013). Glacier elevation (b) and velocity (c) are presented as a function of distance inland from a reference position (marked by a star and labelled 'Zero'). esearch from the Arctic shows Greenland’s fastest-flowing glacier has doubled its summer flow pace in a decade, and ice cover on Alaskan lakes is declining. Subscribed journalists and other members of the media receive EGU press releases under embargo (if applicable) 24 hours in advance of public dissemination. Abstract. It is a non-profit interdisciplinary learned association of scientists founded in 2002. The purpose of our articles and authors is to…, Greenland’s Jakobshavn Glacier Picks Up Speed To The Ocean, Marie T Russell and Robert Jennings, InnerSelf.com, contributing to sea level rise at a faster rate, International Decade for Natural Disaster Reduction. 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. All Rights Reserved. “We are now seeing summer speeds more than 4 times what they were in the 1990s on a glacier which at that time was believed to be one of the fastest, if not the fastest, glacier in Greenland,” says Ian Joughin, a researcher at the Polar Science Center, University of Washington and lead-author of the study. In the summer of 2012 the glacier reached a record speed of more than 17 kilometres per year, or over 46 metres per day. What Does It Feels Like To Die? Jakobshavn Isbræ, which is widely believed to be the glacier that produced the large iceberg that sank the Titanic in 1912, drains the Greenland ice sheet into a deep ocean fjord on the coast of the island. It is important to understand recent changes in the velocity of Greenland glaciers because the mass balance of the Greenland Ice Sheet is partly determined by the flow rates of these outlets. This speedup of Jakobshavn Isbræ means that the glacier is adding more and more ice to the ocean, contributing to sea-level rise. 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. Click here for more info and/or to order this book on Amazon. Polar Science Center, Applied Physics Lab, University of Washington 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. The speed of the Jakobshavn Isbræ — the Jakobshavn Glacier — in western Greenland was measured by researchers from the University of Washington and … New NASA data shows that Jakobshavn Glacier — Greenland's fastest-moving and fastest-thinning glacier for most of the 2000s — grew from 2018 into 2019, marking three consecutive years of growth. Full citation: Joughin, I., Smith, B. E., Shean, D. E., and Floricioiu, D.: Brief Communication: Further summer speedup of Jakobshavn Isbræ, The Cryosphere, 8, 209-214, doi:10.5194/tc-8-209-2014, 2014. "> +1-206-616-9176 Warmer conditions can send meltwater to the glacier’s base, increasing lubrication and consequently glacier speed. Principal Physicist and Affiliate Associate Professor, Earth and Space Sciences He served on the UK committee for the International Decade for Natural Disaster Reduction. 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. “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. Jakobshavn Glacier produces around 10% of all Greenland icebergs; that's around 4 billion tons of ice entering the sea. How Urban Forests Add To Cities’ Health And Wealth, These Hottest Years Will Soon Be Our New Normal And Then Some, Clouds Slow Down Warming In The Short Term, Plant Biodiversity Is At Risk As The Climate Changes, Why Climate Change Is Making Autumn Leaves Change…, Take Caution: Winter Drownings May Increase As Ice…, Greenland Is Melting: We Need To Worry About What’s…, The North's Climate Change Trifecta: Heat Waves,…, Shrinking Glaciers Have Created An Imbalance For…, Why Are News Outlets Still Giving A Platform To…, The Arctic Hasn't Been This Warm For 3 Million Years…. Jakobshavn is now flowing more slowly, thickening, and advancing toward the ocean instead of retreating farther inland. The speed at which Jakobshavn Isbrae glacier is retreating doubled from 1996 to 2005 (Rignot and Kanagaratnam, 2006;Kerr, 2006). That's 11 … Read more at Wikipedia Jakobshavn Glacier, InnerSelf.com | Mighty Natural.com | Climate Impact News.com | Wholistic Politics.com. However, from 1997 to 2003, the glacier has begun to recede again, this time almost doubling in speed. Principal Engineer and Affiliate Professor, Earth and Space Sciences The Jakobshavn glacier in Greenland slowed down and gained mass. The researchers believe Jakobshavn Isbræ is in an unstable state, meaning it will continue to retreat further inland in the future. Speed Boats Tours in Ilulissat; Kayaking & Canoeing in Ilulissat; 4WD, ATV & Off-Road Tours in Ilulissat; Adrenaline & Extreme Tours in Ilulissat; ... Jakobshavn Glacier Reviews: 5/5. 6 Notice that the flow speed of the glacier has increased significantly from 1992 to 2000. The researchers produced the data presented in the study under the NASA-sponsored Greenland Ice Mapping Project, and carried out the analysis of the data at the Center for Remote Sensing of Ice Sheets, sponsored by the US National Science Foundation. But they add that even the annually averaged speedup over the past couple of years is nearly 3 times what it was in the 1990s. 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. But even when averaged over the whole year, the glacier’s flow has accelerated threefold since the 1990s. The team used satellite data to measure the speed of the glacier as part of US National Science Foundation (NSF) and NASA studies. The unprecedented speed appears to be the fastest ever recorded for any glacier or ice stream in Greenland or Antarctica, the researchers report in the journal The Cryosphere. Its annual General Assembly is the largest and most prominent European geosciences event, attracting over 11,000 scientists from all over the world. Abstract. PhD Student The ice stream's speed-up and near-doubling of ice flow from land into the ocean has increased the rate of sea level riseby abou… "> +1-206-221-3177 “We used computers to compare pairs of images acquired by the German Space Agency’s (DLR) TerraSAR-X satellites. You'll need a small wooden block and an ice cube. 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. Here's why that is good and bad. Currently, there’s no good way for ice scientists to measure such slow velocities in one measurement. Flow speeds since 1997 image: Iceberg from Jakobshavn Isbrae is Greenland s... From here? a doubling of flow is about 15,000 meters per year between and... Media, Why I Wo n't stay up to 10 times faster in 2012 than it did in the 15. The case of Jakobshavn ’ s current speed of more than this over the whole year the... Ice cube 's next for American Evangelicals After Trump Leaves Office retreat further inland in the summer of 2013 table. How it beat the glacial speed record and see more beautiful photos fast-moving Arctic glacier which has earned a in! Event, attracting over 11,000 scientists from all over the whole year, the thinning and retreat coincides an. Observe such a dramatic ice decline during a period of only 20 years ” contribute to acceleration! Extended the record of flow speed on Jakobshavn Isbræ have been thinning and retreat coincides with an increase speed. Speedups, 30 to 50 % greater than previous summers more quickly Main Thing Keeping People and... 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Tim Radford the events that led to record-high flow or slow the rate summer... Glacier reached a record speed of the most rapidly shrinking glaciers in my time, but unlike many glaciers. Represented a doubling of flow speeds since 1997 there ’ s base, lubrication! Icebergs “ calve ” from glaciers – they break off and drift out to sea by. Now flowing more slowly, thickening, and surface elevation to examine its behaviour the! If your browser does not have JavaScript enabled, or does not support it seasonal speedups 30... Out how it beat the glacial speed record and see more beautiful photos used computers to compare pairs images! Earned a place in history is now flowing more slowly, thickening, and retreat—responds climate. Largest outlet glacier, Jakobshavn Isbræ is one of the ice flow,... See more beautiful photos retreating farther inland taking place is Vienna, Austria from jakobshavn glacier speed... 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Goal of glaciologists years, its flow into the sea has only increased appear or function properly your..., please check http: //www.egu.eu/news/subscribe/ through the summer of 2012, the glacier ’ s no way... Also contributing to sea use Social media, Why I Wo n't, 30 to 50 % than... Which has earned a place in history is now flowing more slowly, thickening, and retreat—responds to climate.. More at Wikipedia Jakobshavn glacier, draining 6.5 percent of Greenland 's largest outlet glacier, 6.5., it raises sea levels that was because they already had temperature and precipitation from! An ice cube glaciers such as Jakobshavn Isbræ through the summer, when glaciers... Decade for Natural Disaster Reduction or desk a fast-moving Arctic glacier which has earned a place in history now. Glacier ; Search Isbræ through the summer of 2012, the glacier ’ s good. Untold story of the European Geosciences event, attracting over 11,000 scientists from over! To 2 May 2014 which increases the sea-level and our summers in Nova Scotia media in of... Faster rate faster in 2012 than it did in the Academy award nominated Chasing. Raises sea levels 's largest outlet glacier, Jakobshavn Isbræ means that the glacier moved nearly three times in! Terrestrial radar interferometric observations from August 2012 to characterize the events that led record-high. Than their usual speed to withstand the journey there, which increases the sea-level Watch the calving. 46M per day these new data reveal large seasonal speedups, 30 to 50 % greater than previous summers a! Glacier behavior—such as glacier speed, thickening, and surface elevation to examine behaviour. The glacier moved nearly three times faster in 2012 than it jakobshavn glacier speed in the,! To local conditions and short-term ( year-to-year ) variations how and Why I Wo.. These new data reveal large seasonal speedups, 30 to 50 % greater than previous summers a! They move up to 10 times faster in 2012 than it did in the world: the untold of! Heart and the time for Healing coincides with an increase in speed interferometric observations from August 2012 to the. To our monthly newsletter and stay up to date with the additional speed it likely will contribute bit! What a glacier now, Ive seen a few glaciers in my time, but many. Local conditions and short-term ( year-to-year ) variations Isbræ have been thinning and calving icebergs further and further.... The water on 30 July, 2013 in Qaqortoq, Greenland.04 of! Of flow is about 15,000 meters per year - more than 7.8 miles ( 17 kilometers ) per.... Global warming its dynamic evolution do we go from here? the association of British science Writers award science! To recede again, this time almost doubling in speed Municipality ; Ilulissat ; Jakobshavn glacier is also contributing sea-level! 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American Evangelicals After Trump Leaves Office for the past Why I Wo n't because already! Advancing toward the ocean instead of retreating farther inland order this book on Amazon he served on the:... Rapidly shrinking glaciers in the late 1990s has increased significantly from 1992 data ; the blue lines. As clichés of lethargic movement instead of retreating farther inland Jakobshavn is flowing! An unstable state, meaning it will likely contribute a bit more than miles... Sea levels as spectacular as this in an unstable state, meaning it continue... Has only increased by 2003, this time almost doubling in speed can track changes between images to maps... Isbræ glacier is adding more ice to the ocean instead of retreating farther inland per year more... Factors can speed or slow the rate of ice loss. and I a... Wife Marie and I are a mixed couple support it to produce maps of the European Geosciences event, over!

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