Pine Island Glacier calving imminent Date: November 14, 2019 Author: adrianluckman This series of velocity maps from Copernicus Sentinel-1 satellites shows how a 300 square km slab of ice at the seaward end of Pine Island Glacier in Antarctica is gradually speeding up as it gets ready to calve as another large iceberg. ESA The Pine Island Glacier in Antarctica is known as "PIG" for short. The Copernicus Sentinel-1 and Sentinel-2 satellites have revealed new cracks, or rifts, in the Pine Island Glacier – one of the primary ice arteries in the West Antarctic Ice Sheet. Pine Island Glacier, the longest and fastest flowing ice stream in the Antarctic, is now very probably in a headlong, self-sustaining retreat, say scientists. The acceleration stretches the glacier, causing the thinning and likely making the ice more prone to crevassing (cracking) “upstream.”. Like. The Pine Island Glacier—located at the base of the Antarctic Peninsula on the western side of the continent—has always shipped Antarctic ice out to sea at prolific levels, but it’s become famous in recent years due to its ever increasing output. This image shows two cracks in the Pine Island Glacier seen by the Copernicus Sentinel-2 satellite on September 14, 2019. PROBA-V will observe Antarctica till the end of February 2019. Long-term measurements of West Antarctic Ice Sheet glaciers such as Pine Island are critical to understanding changes to the rate of loss of ice mass into the ocean. Une vaste cavité sous le glacier Thwaites en Antarctique Ouest a été repérée par la NASA.Mesurant 10 km de long, 4 km de large et 300 m de hauteur, cette cavité s’est ouverte à la base du glacier entre 2011 et 2016, séparant la glace du socle rocheux ouvrant la voie aux eaux chaudes provenant de l’océan et en le faisant fondre par en-dessous. It is, along with neighboring Thwaites Glacier, one of the main pathways for ice entering the Amundsen Sea from the West Antarctic Ice Sheet and one the fastest-retreating glaciers in Antarctica. Going fast! The new development on the Pine Island Glacier happened just a week after a temperature record of 18.3ºC was registered in Antarctica, exceeding the previous record of 17.5ºC. The two large rifts were first spotted in early 2019 and have each rapidly grown to approximately 20 km in length. In a study in which scientists from the EOC were also involved, the changes at Pine Island Glacier were examined in more detail. Sentinel-1 winter monitoring of their progressive extension signals that a new iceberg of similar proportions will soon be calved. This image shows the two cracks captured by the Copernicus Sentinel-2 satellite on the 14 September 2019. That’s shorter than a cross-country flight from New York to Los Angeles, but there are no runways on the glacier and no infrastructure. Rift in Antarctic Glacier: A Unique Chance to Study Ice Shelf Retreat. Pine Island Glacier: Satellite animation mid-2017 to Feb-2020 Date: February 11, 2020 Author: adrianluckman Updated animation showing the last three calving events as seen by ESA’s Sentinel-1 synthetic aperture radar. Only a handful of scientists have ever set foot on its ice. Editor’s Note: Earth Observatory would like to thank the following scientists for help with image interpretation: Eric Rignot/JPL, Robert Bindschadler/NASA GSFC (emeritus), Christopher Shuman, UMBC/NASA GSFC, and Chris Readinger/U.S. They make great gifts. He said in a statement: These new rifts appeared very soon after last year’s major calving of iceberg B46. All observations (November 2018 - February 2019) are made available through the data portal and the Mission Exploitation Platform (MEP) so users can play around with the data using all available tools. We map the detailed chan-nel network and conduct a quantitative morphometric com-parison between the channels in Pine Island … Photograph by European Space Agency On the ice-covered edge of a remote West Antarctic bay, the continent’s most imperilled glaciers threaten to redraw Earth’s coastlines. According to NASA’s Earth Observatory, the glacier experiences “large calving events” every four to six years. Snow and Ice Decline of West Antarctic Glaciers Appears Irreversible. Even if … Read more: Emerging cracks in the Pine Island Glacier. Here’s the 12-mile-long (20-km-long) crack in Pine Island Glacier, via ESA. Image development and design by Lauren Dauphin. Researchers monitoring satellite imagery of the Pine Island Glacier (PIG), in west Antarctica, first noticed two large rifts forming in the shelf in 2019. This photo, shot by NASA science writer Kate Ramsayer during a research flight on November 7, 2018, shows sea ice between Pine Island Glacier and the newly calved Iceberg B-46. Images and Data for Pine Island Glacier measured between 23.05.2019 and 11.04.2020. In the case of bergs from Pine Island Glacier and others that start in the Amundsen and Eastern Ross seas, the names begin with “B”. As anticipated, Pine Island Glacier, known as PIG for short, in Antarctica has just spawned a huge iceberg. Pine Island Glacier is also buttressed by a large, floating ice shelf, which is itself thinning and which calved a huge iceberg in late 2018. The Pine Island Glacier (a.k.a. Sometime between November 9 and November 11, 2013, a large iceberg separated from the front of Pine Island Glacier. Remote Sensing. Evolution of the cracks in the Pine Island Glacier. Avec son voisin le Pine Island, ce glacier forme une sorte de rempart qui, relâché à la mer, pourrait à lui seul faire monter le niveau des océans dans le monde d'au moins 65 cm. 35 . As our earthly satellites have looked on, since the 1990s, calving events have occurred in 1992, 1995, 2001, 2007, 2011, 2013, 2015, 2017 and 2018. Pine Island Glacier (PIG), in the West Antarctic Ice Sheet, has an area of 175,000 square kilometres and loses about 45 billion tons of ice each year. While there tends to be more sea ice at this time of year, it is no match for the huge stresses within the massive ice shelf. Wadi Rum, Jordan - Copernicus Sentinel-2 data (2019) Wadi Rum, Jordan - Copernicus Sentinel-2 data (2019) Cracked: Pine Island Glacier Released date: Fri, 18/10/2019 - 17:15 The map – created using integrated radar observations from a consortium of international satellites – shows glaciers flowing thousands of miles from Antarctica’s deep interior to its coast. A rift in the glacier first became visible on September 10, 2000, in images from NASA’s new Terra satellite, but the cracking probably started in the darkness of austral winter. Leave a Comment / Uncategorized. Spectacular! pine island glacier 2019. Polar Geospatial Center at the University of Minnesota, Moderate Resolution Imaging Spectroradiometer. The image above shows a clear view from October 15, 2007. Recently, the frequency of Pine Island Glacier calving events has increased. Pinpointing the exact birthdate of icebergs using natural color images can be a challenge. They have each grown to 20km in length and could shear off a hunk of ice the size of Paris and Manhattan combined. Pine Island Glacier: Satellite animation mid-2017 to Feb-2020 Date: February 11, 2020 Author: adrianluckman Updated animation showing the last three calving events as seen by ESA’s Sentinel-1 synthetic aperture radar. At the end of October 2018, the European Space Agency’s Sentinel-1 satellite observed the glacier letting go of a huge chunk of ice. pine island glacier 2019. Decades of investigations have given scientists a better idea of the quirks of PIG’s behavior. The U.S. National Ice Center assigns names to sizeable icebergs depending on the quadrant of Antarctica in which the berg was first sighted. Operation IceBridge - Pine Island Glacier. Mission Sciences Division at ESA frequency of Pine Island Glacier ice streams flow west-northwest along the south side of quirks. Of PIG ’ s acceleration, the ice shelf now has one of Hudson. 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