Category:Antarctica
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Thwaites Glacier, Antarctica
2021
Biggest icebergs calve, drift, and crack up
World's ice melting faster than ever
2020
Warming at more than three times the global average over the past 30 years
Study via the journal Nature Climate Change
It's all connected
The scientists said the main cause of the warming was increasing sea surface temperatures thousands of miles away in the tropics. Over the past 30 years, warming in the western tropical Pacific Ocean -- a region near the equator north of Australia and Papua New Guinea -- meant there was an increase in warm air being carried to the South Pole.
"It is wild. It is the most remote place on the planet. The significance is how extreme temperatures swing and shift over the Antarctic interior, and the mechanisms that drive them are linked 10,000 kilometers (6,200 miles) north of the continent on the tropical Pacific."
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The Deepest Dive in Antarctica
- http://www.oceanx.org
- http://www.instagram.com/oceanx
- http://www.facebook.com/oceanxorg
- http://www.twitter.com/oceanx
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Algae in Antarctica
This summer’s Antarctic weather, as elsewhere in the world, was unprecedented in the observed record
Thwaites, Ominous and Changing as Scientists Watch
2019
What Happens in Antarctica Doesn't Stay in Antarctica
• Via National Geographic / Watching Thwaites Glacier Up Close and Personal by Elizabeth Rush
The Thwaites Glacier is often considered one of the most important when it comes to changes in sea level....
- More re: Thwaites
-- https://www.nytimes.com/2020/01/29/climate/thwaites-glacier-melting-antarctica.html
Along with Thwaites the overwhelming majority of the world’s glaciers have begun to withdraw...
Never forget: The ice is telling you what to do and not you are telling the ice what to do. Thwaites speaks, its calving a message we must now labor to hear.
Elizabeth Rush is the author of Rising: Dispatches from the New American Shore.
Scientists Detect an Enormous Cavity Growing Beneath Antarctica
- http://advances.sciencemag.org/content/5/1/eaau3433
- https://www.news.com.au/technology/environment/climate-change/thwaites-glacier-has-an-enormous-cavity-beneath-it-melted-by-warm-ocean-waters/news-story/d76c01e23593eab1d85324db89c3cd79
- Researchers say the cavity would once have been large enough to hold some 14 billion tonnes of ice. Even more disturbing, the researchers say it lost most of this ice volume over the last three years alone.
- "We have suspected for years that the Thwaites glacier was not tightly attached to the bedrock beneath it," says glaciologist Eric Rignot from the University of California, Irvine, and NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.
- "Thanks to a new generation of satellites, we can finally see the detail."
- "For global sea-level change in the next century, this Thwaites glacier is almost the entire story."
- Rignot and fellow researchers discovered the cavity using ice-penetrating radar as part of NASA's Operation IceBridge, with additional data supplied by German and French scientists.
- Antarctica is losing ice 6 times faster today than in 1980s
- Antarctic melting study... 'reasons for concern'
Read this research data thread and Antarctic sea-level rise connection from @chriscmooney, environmental reporter from the Washington Post:
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Scientists release the most accurate, high-resolution terrain map ever created (2018)
- The new Antarctic map shows a resolution of 2 to 8 meters – compared to the previous standard of 1,000 meters.
Reference Elevation Model of Antarctica / Release 1
Accurate Antarctica / Phys.org
Large-format poster map of the Reference Elevation Model of Antarctica (REMA), rendered with a hillshade. Does not include any cartographic elements.
http://maps.apps.pgc.umn.edu/id/2364
Large-format poster map of the Reference Elevation Model of Antarctica (REMA), rendered with a hillshade. Includes cartographic elements such as place name labels, graticules...
http://maps.apps.pgc.umn.edu/id/2365
Use the links below to browse the directory for the entire REMA dataset. Refer to Documentation to see the directory structure, naming schemes, and download contents.
HTTP: http://data.pgc.umn.edu/elev/dem/setsm/REMA
FTP: ftp://ftp.data.pgc.umn.edu/elev/dem/setsm/REMA
"Considering that Antarctica is the highest, driest, and one of the most remote places on Earth, we now have an incredible topographic model to measure against in the future," said Paul Morin, a University of Minnesota earth sciences researcher and the director of the Polar Geospatial Center.
"Up until now, we've had a better map of Mars than we've had of Antarctica," said Ian Howat, professor of earth sciences and director of the Byrd Polar and Climate Research Center at The Ohio State University. "Now it is the best-mapped continent on Earth."
"It is the highest-resolution terrain map by far of any continent,’ said Ian Howat, professor of Earth sciences and director of the Byrd Polar and Climate Research Center at The Ohio State University.
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- Antarctic Treaty System
- NASA IceBridge Antarctica
- Antarctica's Flowing Ice
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2018
Antarctic Melt Needs to be Monitored More Closely
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2017
- How active are newly discovered Antarctic volcanoes?
- A new volcanic province: an inventory of subglacial volcanoes in West Antarctica
- ...the biggest cluster of volcanoes in the world.
The study, published in the Geological Society Special Publications series, does not indicate whether the volcanoes are active but the team is trying to find out.
As Dr. Robert Bingham, a glacier expert and one of the paper's authors noted to the Guardian, "The big question is: how active are these volcanoes?"
"That is something we need to determine as quickly as possible," Bingham continued. "Anything that causes the melting of ice—which an eruption certainly would—is likely to speed up the flow of ice into the sea."
Ominously, other experts have warned that a reverse situation could also happen — volcanic activity can be triggered by thinning ice sheets from rising global temperatures.
Trillion Ton Iceberg Breaks Off
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The Future of the US Antarctica Station and Research
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Subcategories
This category has the following 4 subcategories, out of 4 total.
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Pages in category "Antarctica"
The following 31 pages are in this category, out of 31 total.
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- Glasgow Climate Summit - Pledges, Promises, Declarations - What's Next Up
- Global Climate Action Summit
- Green Stories of the Day
- Green Stories of the Day - GreenPolicy360 Archive
- GreenPolicy360 Archive Highlights 2013
- GreenPolicy360 Archive Highlights 2014
- GreenPolicy360 Archive Highlights 2015
- GreenPolicy360 Archive Highlights 2016
- GreenPolicy360 Archive Highlights 2017
- GreenPolicy360 Archive Highlights 2018
- GreenPolicy360 Archive Highlights 2019
- GreenPolicy360 Archive Highlights 2020
- GreenPolicy360 Archive Highlights 2023
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Media in category "Antarctica"
The following 200 files are in this category, out of 381 total.
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