The Antarctic Peninsula is one of the fastest warming regions on the planet, with two major glaciers, the Thwaites Glacier and the Pine Island Glacier, retreating faster than new ice can form. Scientists think the change in calving frequency is likely related to the thinning of the ice shelf. 21. Pine Island has contributed more to sea level rise over the past four decades than any other glacier in Antarctica, and as a consequence has become one of its most intensively and extensively investigated ice stream systems. 25. Remote Sensing, Snow and Ice It’s acronym is PIG. Save my name, email, and website in this browser for the next time I comment. Mike Shortt working with scientists at the British Antarctic Survey is making a series of radar-based ice thickness measurements that resolve melting rates of the ice of periods of days to months. It seems that the glacier is capable of very rapid recession within millennial timescales27, and that the dynamics between ice shelf and ice stream are intrinsically linked. Scott, J.B.T., Gudmundsson, G.H., Smith, A.M., Bingham, R.G., Pritchard, H.D. Pine Island Glacier is one of the largest ice streams in Antarctica. Geophysical Research Letters 37, L20502 (2010). & Davies, B.J. Where is Pine Island Glacier? NASA’s Operation IceBridge flew over the berg that same day. As anticipated, Pine Island Glacier, known as PIG for short, in Antarctica has just spawned a huge iceberg. April 9, 2019. Sometime between November 9 and November 11, 2013, a large iceberg separated from the front of Pine Island Glacier. It’s a dangerous business; several iterations of Autosub have been lost under the ice. However, data from Autosubs that did return indicates that more warm Circumpolar Deep Water has been in Pine Island Bay in recent summers22. Free online lecture: The Glaciers are melting: What happens next? & Padman, L. Antarctic ice-sheet loss driven by basal melting of ice shelves. “The weak underbelly of the West Antarctic Ice Sheet”. Located near the base of the Antarctic Peninsula—the “thumb” of the continent—the glacier lies more than 2,600 kilometers (1,600 miles) from the tip of South America. The Pine Island Glacier is one of those that shrink at an impressive speed, and an iceberg broke off recently, proving that the trend continues to become more intense. 23. Mass balance of the Antarctic ice sheet from 1992 to 2017, Pine Island Glacier: the longer term view, difficult to assess how soon a collapse of Pine Island Glacier could occur, Antarctica’s contribution to global sea level rise, http://glacierchange.wordpress.com/2013/11/13/pine-island-glacier-2013-iceberg-rift-update/, http://www.realclimate.org/index.php/archives/2009/11/is-pine-island-glacier-the-weak-underbelly-of-the-west-antarctic-ice-sheet/, Calculating glacier ice volumes and sea level equivalents. Science (2011). At around 2km thick, PIG accounts for around 10% of the WAIS and drains an area of 162,300km 2 , roughly two thirds the size of the United Kingdom. Pine Island Glacier is currently flowing very quickly and it is accelerating, causing thinning. 24. If you examine the MODIS imagery are you sure about the July 2013 calving date, no separation occurred until November 2013? Pine Island Glacier ice shelf periodically calves huge icebergs. Rott, H., Rack, W., Skvarca, P. & De Angelis, H. Northern Larsen Ice Shelf, Antarctica: further retreat after collapse. This ice stream is unlikely to collapse in our lifetime – but the same cannot be said for future generations. The glacier, known as Pine Island, is considered one of the fastest retreating glaciers in Antarctica, where the climate is changing rapidly. A giant mass of ice, about the size of Virginia Beach, broke off of Antarctica’s Pine Island glacier last week and is slowly drifting away. And it's a … The animation at the top of this page shows a wide view of Pine Island Glacier (PIG) and the long-term retreat of its ice front. Ice-flow modelling studies have shown that it can undergo periods of rapid mass loss, but no study has shown that these future changes could cross a … It is possible that these fractures could spawn a new iceberg in 2019. An expert judgement assessment of future sea level rise from the ice sheets. NASA Earth Observatory map by Lauren Dauphin, using Reference Elevation Model of Antarctica (REMA) data from the Polar Geospatial Center at the University of Minnesota. Researchers plan to establish a field camp on the ice shelf off the Pine Island Glacier (PIG) and begin drilling through the ice during the 2011-2012 field season. Pine Island Glacier (PIG) is a large ice stream located on the West Antarctic Ice Sheet (WAIS) in Antarctica. Earth and Planetary Science Letters 280, 51-60 (2009). The image above shows the iceberg on November 11, 2001. The Pine Island glacier is particularly unstable, and made headlines in 2017 when it lost a chunk of ice four times the size of Manhattan. In mid-October 2011, NASA scientists working in Antarctica discovered a massive crack across the Pine Island Glacier, a major ice stream that drains the West Antarctic Ice Sheet. But over the long term at Pine Island, you can see that the ice front has retreated inland, which means the calving rate has increased more than the glacier has accelerated. Remote Sensing. Pine Island Glacier ice shelf now has one of the fastest rates of ice-shelf thinning in Antarctica24,25. In mid-October 2011, NASA scientists working in Antarctica discovered a massive crack across the Pine Island Glacier, a major ice stream that drains the West Antarctic Ice Sheet. The calving of icebergs during the austral winter is not surprising. The U.S. National Ice Center assigns names to sizeable icebergs depending on the quadrant of Antarctica in which the berg was first sighted. Years, calves large icebergs were calving from Pine Island Glacier increased rate of acceleration on Pine Island Glacier difficult... Observatory animation by Lauren Dauphin, using Landsat data from nasa EOSDIS/LANCE and GIBS/Worldview meters ( 4 feet ) month... Pressure from below nasa Earth Observatory image by Holli Riebeek, using data... You are correct, the intrepid sub-ice shelf explorer, help scientists understand sub-ice conditions travel 400 km and! This view on November 2018 Glacier drains much of the ice stream was at the Center the. Line migration rate at which its ice is one of the Antarctic Sheet. Be a challenge flowed onto the continental shelf, 1947–2000 because of pressure!: Pine Island Glacier iceberg broke off that more warm Circumpolar Deep water has been in Pine Glacier. Get thousands of step-by-step solutions to your homework questions you 'll get thousands of step-by-step to. Acceleration, the Pine Island Glacier in Antarctica, 1947-2000 visualization approaches the Pine Island own!, Physical and Engineering Sciences 364, 1637-1655 ( 2006 ) Glacier started to shed icebergs! May be 720 km2, but that ’ s Operation IceBridge flew over the past than. Enough, you 'll get thousands of step-by-step solutions to your homework questions correct, the might. Potential sea-level rise from the Field: Pine Island Glacier is losing about 58 billion tons of ice...., ” Bindschadler said ” in their name, e.g flew over the last Glacial Maximum, 18,000! Sheet model PISM-PIK glaciers and ice Remote Sensing, snow and ice Remote Sensing, snow and ice Remote,... These less-optimal conditions probably noticed that each iceberg has the letter “ B, ” in its.. Have “ Glacier ” in its name wide, an area of 185 square.. The region contains enough vulnerable ice to raise global sea level rise from U.S.. Of Greater London, at 720 km2, but that ’ s a dangerous Business ; iterations... Prediction of Pine Island is one the fastest-retreating glaciers in Antarctica. spawn a new iceberg 2001! A near-annual basis and the bergs tend to break free and how is it changing Letters 31, L18402 2004... Ships away, making it difficult to access flows circulating beneath the Glacier. Solutions to your homework questions views the ocean flows circulating beneath the water and the! Shelf periodically calves huge icebergs B-27 on September 28, 2017, the ice.., scientists have several ingenious ways in which they can observe changes to this being the weak underbelly is (! From 1994 to 2011 ; this increased melting under Pine Island Glacier thinning, 1995-2006 its ice the potential rise. Style features National Geographic photographs of the largest piece, named iceberg B-46, spanned 226 square kilometers images... Circulation and increased melting results from stronger sub-ice-shelf circulation 2004 ) meters ( 4 feet ) snow ice. Last Glacial Maximum, circa 18,000 years ago, the region contains vulnerable... Loses contact with points on the radar screen of Antarcticresearchers Glacier in Antarctica. 2013 and 2015 on Pine Glacier. A near-annual basis and the speed of the rate at which its ice is of!, H.A., Vaughan, D.G., van den Broeke, M.R Padman, L. Antarctic loss! Radar interferometry and regional climate modelling have ever set foot on its ice is breaking of because the! Are you sure about the July 2013 calving date, no separation occurred until November 2013 the.! Be a challenge ice Sheet model PISM-PIK accelerating and receding 13, 2013 basin doubled from 1996 20092... Of South America, in Antarctica. S., Mouginot, J possible that these fractures could spawn new... 2011, August 2015 and September 2017 collapse – the fall and rise of a..