- published: 13 May 2014
- views: 175317
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Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for more.
A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead.
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is slowly adding to the rise of global ocean levels. It is now thought that the ice sheet is undergoing irreversible marine ice sheet collapse. The primary cause is bottom melting of coastal ice shelves in the Amundsen Sea sector driven by oceanic and/or atmospheric factors. In addition, the air temperature over the ice sheet interior has risen substantially over the past 50 years at a rate comparable to that recorded on the adjacent Antarctic Peninsula. There are many tropical and high latitude influences at play governing the atmospheric and oceanic behavior in this part of the world. The talk will lay out what is happening to West Antarctica at present and what may happen in the future as worldwide temperatures continue to increase.
- published: 14 Oct 2014
- views: 3475
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call the continued melting "unstoppable."
Follow Zach Toombs: http://www.twitter.com/ZachToombs
See more at http://www.newsy.com
Sources:
NASA https://www.youtube.com/watch?v=Adh86ma3oxw
NASA https://www.youtube.com/watch?v=dXVWGGmNRiI
LiveScience http://www.livescience.com/45534-west-antarctica-collapse-starts.html
National Snow and Ice Data Center https://www.youtube.com/watch?v=CBD8hWbiFMI
The New York Times http://www.nytimes.com/2014/05/13/science/earth/collapse-of-parts-of-west-antarctica-ice-sheet-has-begun-scientists-say.html?gwh=8346613ECA5316245B41859AFDB46F03&gwt;=pay&assetType;=nyt_now&_r=0
Image via: Wikimedia Commons / Dave Pape
http://commons.wikimedia.org/wiki/File:Antarctica_6400px_from_Blue_Marble.jpg
- published: 12 May 2014
- views: 2717
For More Latest News Subscribe us:
MIAMI: Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more is unavoidable in the next 100-200 years, NASA scientists said Wednesday.
Ice sheets in Greenland and Antarctica are melting faster than ever, and oceans are warming and expanding much more rapidly than they have in years past.
Rising seas will have "profound impacts" around the world, said Michael Freilich, director of NASA's Earth Science Division.
"More than 150 million people, most of them in Asia, live within one meter of present sea level," he said.
Low-lying US states such as Florida are at risk of disappearing, as are some of the world's major cities such as Singapore and Tokyo.
"It may entirely eliminate some Pacific island nations," he said.
There is no doubt that global coastlines will look very different in years to come, US space agency experts told reporters on a conference call to discuss the latest data on sea level rise.
"Right now we have committed to probably more than three feet (one meter) of sea level rise, just based on the warming we have had so far," said Steve Nerem of the University of Colorado, Boulder and leader of NASA's sea level rise team
It will very likely get worse in the future," he told reporters.
"The biggest uncertainty is predicting how quickly the polar ice sheets will melt."
- published: 27 Aug 2015
- views: 725
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Antarctica. Shot during January 2015 while I was working on the DISC Drill with the University of Wisconsin Ice Drill Design and Operations team. For more on my adventures in Antarctica, check out http://JeffreyDonenfeld.com/Antarctica
Also, be sure to check out my full tour of the Amundsen-Scott South Pole Station - https://www.youtube.com/watch?v=P5lQ9DCXIbs
- published: 25 Feb 2015
- views: 10087
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sheet—a vast swath of ice that could unleash a slow but unstoppable 10-foot rise in sea levels if it melted. So here is today's terrible news: we now know the ice sheet is melting. And there's pretty much nothing we can do to about it. Ice is melting in the western Antarctic at an unstoppable pace, scientists said Monday, warning that the discovery holds major consequences for global sea level rise in the coming decades. The speedy melting means that prior calculations of sea level rise worldwide made by the Intergovernmental Panel on Climate Change will have to be adjusted upwards, scientists told reporters.
Tags:
World Flood
West Antarctic Ice
West Antarctic Ice Melting
West Antarctic Ice Collapse
New World 2014
- published: 12 May 2014
- views: 45979
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NASA Jet Propulsion Lab, was co-author of a recent study showing that West Antarctica ice sheets are in a state of irreversible collapse, and that several meters of sea level rise are now "locked in", with the only question being - how fast?
Trouble is, we don't know how fast, and they've moved very, very quickly in the past.
https://www.youtube.com/watch?v=71l9lzLsBRc
- published: 02 Feb 2015
- views: 2279
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion Laboratory and the University of California, Irvine, finds that a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the entire glacial basin from melting into the sea. Three major lines of evidence point to the glaciers' eventual demise: their flow speeds and how they change with time, how much each glacier is floating on seawater rather than lying on land, and the slope of the terrain they are flowing over and its depth below sea level. These glaciers already contribute significantly to sea level rise, releasing as much ice into the ocean each year as the entire Greenland Ice Sheet does.
- published: 12 May 2014
- views: 14367
Check out our official website: http://us.tomonews.net/
Check out our Android app: http://goo.gl/PtT6VD
Check out our iOS app: http://bit.ly/1gO3z1f
------------------------------------------------------------------------------------------------
A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA.
Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica.
Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf.
Another study published by the University of California, Irvine, shows that warmer water at the depths of the ocean form caverns beneath the ice, wearing away ice grounded at the ocean floor.
These studies conclude that Antarctic instability will significantly contribute to sea level rise in the decades to come.
------------------------------------------------------------------------------------------------
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- published: 13 May 2014
- views: 22065
location on Google Map
Antarctic ice sheet
The Antarctic ice sheet is one of the two polar ice caps of the Earth.
It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square kilometres (5.4 million square miles) and contains 26.5 million cubic kilometres (6,400,000 cubic miles) of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to about 58 m of sea-level rise. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. Much of the land in this area would be seabed if the ice sheet were not there.
In contrast to the melting of the Arctic sea ice, sea ice around Antarctica was expanding as of 2013. The reasons for this are not fully understood, but suggestions include the climatic effects on ocean and atmospheric circulation of the ozone hole, and/or cooler ocean surface temperatures as the warming deep waters melt the ice shelves.
This page contains text from Wikipedia, the Free Encyclopedia -
https://wn.com/Antarctic_ice_sheet
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
location on Google Map
Antarctic
The Antarctic (US English /æntˈɑːrktɪk/, UK English /ænˈtɑːrktɪk/ or /æntˈɑːrtɪk/ and /ænˈtɑːrtɪk/ or /ænˈɑːrtɪk/) is a polar region, specifically the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters, and island territories in the Southern Ocean situated south of the Antarctic Convergence. The region covers some 20% of the Southern Hemisphere, of which 5.5% (14 million km2) is the surface area of the continent itself.
Geography
The maritime part of the region constitutes the area of application of the international Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), where for technical reasons the Convention uses an approximation of the Convergence line by means of a line joining specified points along parallels of latitude and meridians of longitude. The implementation of the Convention is managed through an international Commission headquartered in Hobart, Australia, by an efficient system of annual fishing quotas, licenses and international inspectors on the fishing vessels, as well as satellite surveillance.
This page contains text from Wikipedia, the Free Encyclopedia -
https://wn.com/Antarctic
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
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3:35ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible DeclineScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for more. A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead. -
53:49Climate Change and West Antarctica - David Bromwich (SETI Talks)
Climate Change and West Antarctica - David Bromwich (SETI Talks)Climate Change and West Antarctica - David Bromwich (SETI Talks)
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is slowly adding to the rise of global ocean levels. It is now thought that the ice sheet is undergoing irreversible marine ice sheet collapse. The primary cause is bottom melting of coastal ice shelves in the Amundsen Sea sector driven by oceanic and/or atmospheric factors. In addition, the air temperature over the ice sheet interior has risen substantially over the past 50 years at a rate comparable to that recorded on the adjacent Antarctic Peninsula. There are many tropical and high latitude influences at play governing the atmospheric and oceanic behavior in this part of the world. The talk will lay out what is happening to West Antarctica at present and what may happen in the future as worldwide temperatures continue to increase. -
1:46West Antarctic Ice Melt Reaches Point Of No Return
West Antarctic Ice Melt Reaches Point Of No ReturnWest Antarctic Ice Melt Reaches Point Of No Return
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call the continued melting "unstoppable." Follow Zach Toombs: http://www.twitter.com/ZachToombs See more at http://www.newsy.com Sources: NASA https://www.youtube.com/watch?v=Adh86ma3oxw NASA https://www.youtube.com/watch?v=dXVWGGmNRiI LiveScience http://www.livescience.com/45534-west-antarctica-collapse-starts.html National Snow and Ice Data Center https://www.youtube.com/watch?v=CBD8hWbiFMI The New York Times http://www.nytimes.com/2014/05/13/science/earth/collapse-of-parts-of-west-antarctica-ice-sheet-has-begun-scientists-say.html?gwh=8346613ECA5316245B41859AFDB46F03&gwt;=pay&assetType;=nyt_now&_r=0 Image via: Wikimedia Commons / Dave Pape http://commons.wikimedia.org/wiki/File:Antarctica_6400px_from_Blue_Marble.jpg -
1:36Western Antarctic Ice Sheet Collapse Has Already Begun
Western Antarctic Ice Sheet Collapse Has Already BegunWestern Antarctic Ice Sheet Collapse Has Already Begun
For More Latest News Subscribe us: MIAMI: Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more is unavoidable in the next 100-200 years, NASA scientists said Wednesday. Ice sheets in Greenland and Antarctica are melting faster than ever, and oceans are warming and expanding much more rapidly than they have in years past. Rising seas will have "profound impacts" around the world, said Michael Freilich, director of NASA's Earth Science Division. "More than 150 million people, most of them in Asia, live within one meter of present sea level," he said. Low-lying US states such as Florida are at risk of disappearing, as are some of the world's major cities such as Singapore and Tokyo. "It may entirely eliminate some Pacific island nations," he said. There is no doubt that global coastlines will look very different in years to come, US space agency experts told reporters on a conference call to discuss the latest data on sea level rise. "Right now we have committed to probably more than three feet (one meter) of sea level rise, just based on the warming we have had so far," said Steve Nerem of the University of Colorado, Boulder and leader of NASA's sea level rise team It will very likely get worse in the future," he told reporters. "The biggest uncertainty is predicting how quickly the polar ice sheets will melt." -
36:40In-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
In-depth tour of the West Antarctic Ice Sheet Field Camp, AntarcticaIn-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Antarctica. Shot during January 2015 while I was working on the DISC Drill with the University of Wisconsin Ice Drill Design and Operations team. For more on my adventures in Antarctica, check out http://JeffreyDonenfeld.com/Antarctica Also, be sure to check out my full tour of the Amundsen-Scott South Pole Station - https://www.youtube.com/watch?v=P5lQ9DCXIbs -
2:16WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sheet—a vast swath of ice that could unleash a slow but unstoppable 10-foot rise in sea levels if it melted. So here is today's terrible news: we now know the ice sheet is melting. And there's pretty much nothing we can do to about it. Ice is melting in the western Antarctic at an unstoppable pace, scientists said Monday, warning that the discovery holds major consequences for global sea level rise in the coming decades. The speedy melting means that prior calculations of sea level rise worldwide made by the Intergovernmental Panel on Climate Change will have to be adjusted upwards, scientists told reporters. Tags: World Flood West Antarctic Ice West Antarctic Ice Melting West Antarctic Ice Collapse New World 2014 -
4:27Eric Rignot on Ice Sheet Retreat
Eric Rignot on Ice Sheet RetreatEric Rignot on Ice Sheet Retreat
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NASA Jet Propulsion Lab, was co-author of a recent study showing that West Antarctica ice sheets are in a state of irreversible collapse, and that several meters of sea level rise are now "locked in", with the only question being - how fast? Trouble is, we don't know how fast, and they've moved very, very quickly in the past. https://www.youtube.com/watch?v=71l9lzLsBRc -
10:18Video file: West Antarctic Glacier Loss Appears Unstoppable
Video file: West Antarctic Glacier Loss Appears UnstoppableVideo file: West Antarctic Glacier Loss Appears Unstoppable
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion Laboratory and the University of California, Irvine, finds that a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the entire glacial basin from melting into the sea. Three major lines of evidence point to the glaciers' eventual demise: their flow speeds and how they change with time, how much each glacier is floating on seawater rather than lying on land, and the slope of the terrain they are flowing over and its depth below sea level. These glaciers already contribute significantly to sea level rise, releasing as much ice into the ocean each year as the entire Greenland Ice Sheet does. -
1:07Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppableGlobal warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
Check out our official website: http://us.tomonews.net/ Check out our Android app: http://goo.gl/PtT6VD Check out our iOS app: http://bit.ly/1gO3z1f ------------------------------------------------------------------------------------------------ A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA. Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica. Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf. Another study published by the University of California, Irvine, shows that warmer water at the depths of the ocean form caverns beneath the ice, wearing away ice grounded at the ocean floor. These studies conclude that Antarctic instability will significantly contribute to sea level rise in the decades to come. ------------------------------------------------------------------------------------------------ Welcome to TomoNews, where we animate the most entertaining news on the internets. Come here for an animated look at viral headlines, US news, celebrity gossip, salacious scandals, dumb criminals and much more! Subscribe now for daily news animations that will knock your socks off. Check out our Android app: https://play.google.com/store/apps/details?id=com.nextmedia.gan Check out our iOS app: https://itunes.apple.com/app/tomonews/id633875353 For news that's fun and never boring, visit our channel: https://www.youtube.com/user/TomoNewsUS Subscribe to stay updated on all the top stories: https://www.youtube.com/channel/UCt-WqkTyKK1_70U4bb4k4lQ?sub_confirmation=1 Stay connected with us here: Facebook http://www.facebook.com/TomoNewsUS Twitter @tomonewsus http://www.twitter.com/TomoNewsUS Google+ http://plus.google.com/+TomoNewsUS/ Instagram @tomonewsus http://instagram.com/tomonewsus -
1:15The West Antarctic Ice Sheet Is Melting Much Faster
The West Antarctic Ice Sheet Is Melting Much Faster
-
ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for more. A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead.
published: 13 May 2014 -
Climate Change and West Antarctica - David Bromwich (SETI Talks)
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is slowly adding to the rise of global ocean levels. It is now thought that the ice sheet is undergoing irreversible marine ice sheet collapse. The primary cause is bottom melting of coastal ice shelves in the Amundsen Sea sector driven by oceanic and/or atmospheric factors. In addition, the air temperature over the ice sheet interior has risen substantially over the past 50 years at a rate comparable to that recorded on the adjacent Antarctic Peninsula. There are many tropical and high latitude influences at play governing the atmospheric and oceanic behavior in this part of the world. The talk will lay out what is happening to West Antarctica at present and what may happen in the future as worldwide tem...
published: 14 Oct 2014 -
West Antarctic Ice Melt Reaches Point Of No Return
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call the continued melting "unstoppable." Follow Zach Toombs: http://www.twitter.com/ZachToombs See more at http://www.newsy.com Sources: NASA https://www.youtube.com/watch?v=Adh86ma3oxw NASA https://www.youtube.com/watch?v=dXVWGGmNRiI LiveScience http://www.livescience.com/45534-west-antarctica-collapse-starts.html National Snow and Ice Data Center https://www.youtube.com/watch?v=CBD8hWbiFMI The New York Times http://www.nytimes.com/2014/05/13/science/earth/collapse-of-parts-of-west-antarctica-ice-sheet-has-begun-scientists-say.html?gwh=8346613ECA5316245B41859AFDB46F03&gwt;=pay&assetType;=nyt_now&_r=0 Image via: Wikimedia Commons / Dave Pape http://commons.wikimedia.org/wiki/File:Antarctica_6400px_f...
published: 12 May 2014 -
Western Antarctic Ice Sheet Collapse Has Already Begun
For More Latest News Subscribe us: MIAMI: Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more is unavoidable in the next 100-200 years, NASA scientists said Wednesday. Ice sheets in Greenland and Antarctica are melting faster than ever, and oceans are warming and expanding much more rapidly than they have in years past. Rising seas will have "profound impacts" around the world, said Michael Freilich, director of NASA's Earth Science Division. "More than 150 million people, most of them in Asia, live within one meter of present sea level," he said. Low-lying US states such as Florida are at risk of disappearing, as are some of the world's major cities such as Singapore and Tokyo. "It may entirely eliminate some Pacific isl...
published: 27 Aug 2015 -
In-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Antarctica. Shot during January 2015 while I was working on the DISC Drill with the University of Wisconsin Ice Drill Design and Operations team. For more on my adventures in Antarctica, check out http://JeffreyDonenfeld.com/Antarctica Also, be sure to check out my full tour of the Amundsen-Scott South Pole Station - https://www.youtube.com/watch?v=P5lQ9DCXIbs
published: 25 Feb 2015 -
WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sheet—a vast swath of ice that could unleash a slow but unstoppable 10-foot rise in sea levels if it melted. So here is today's terrible news: we now know the ice sheet is melting. And there's pretty much nothing we can do to about it. Ice is melting in the western Antarctic at an unstoppable pace, scientists said Monday, warning that the discovery holds major consequences for global sea level rise in the coming decades. The speedy melting means that prior calculations of sea level rise worldwide made by the Intergovernmental Panel on Climate Change will have to be adjusted upwards, scientists told reporters. Tags: World Flood West Antarctic Ice West Antarctic Ice Melting West Antarctic Ice Collapse Ne...
published: 12 May 2014 -
Eric Rignot on Ice Sheet Retreat
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NASA Jet Propulsion Lab, was co-author of a recent study showing that West Antarctica ice sheets are in a state of irreversible collapse, and that several meters of sea level rise are now "locked in", with the only question being - how fast? Trouble is, we don't know how fast, and they've moved very, very quickly in the past. https://www.youtube.com/watch?v=71l9lzLsBRc
published: 02 Feb 2015 -
Video file: West Antarctic Glacier Loss Appears Unstoppable
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion Laboratory and the University of California, Irvine, finds that a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the entire glacial basin from melting into the sea. Three major lines of evidence point to the glaciers' eventual demise: their flow speeds and how they change with time, how much each glacier is floating on seawater rather than lying on land, and the slope of the terrain they are flowing over and its depth below sea level. These glaciers already contribute significantly to sea level rise, releasing as much ice into the ocean each year as the entire Greenland Ice Sheet does.
published: 12 May 2014 -
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
Check out our official website: http://us.tomonews.net/ Check out our Android app: http://goo.gl/PtT6VD Check out our iOS app: http://bit.ly/1gO3z1f ------------------------------------------------------------------------------------------------ A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA. Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica. Eruptions are unlikely to break throu...
published: 13 May 2014 -
ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
- Order: Reorder
- Duration: 3:35
- Updated: 13 May 2014
- views: 175317
Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for more.
A new study led by NASA researchers shows that half-a-dozen key ...
Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for more.
A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead.
wn.com/Sciencecasts No Turning Back West Antarctic Glaciers In Irreversible Decline
Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for more.
A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead.
- published: 13 May 2014
- views: 175317
Climate Change and West Antarctica - David Bromwich (SETI Talks)
- Order: Reorder
- Duration: 53:49
- Updated: 14 Oct 2014
- views: 3475
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is slowly adding to the rise of global ocean levels. It is now thought tha...
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is slowly adding to the rise of global ocean levels. It is now thought that the ice sheet is undergoing irreversible marine ice sheet collapse. The primary cause is bottom melting of coastal ice shelves in the Amundsen Sea sector driven by oceanic and/or atmospheric factors. In addition, the air temperature over the ice sheet interior has risen substantially over the past 50 years at a rate comparable to that recorded on the adjacent Antarctic Peninsula. There are many tropical and high latitude influences at play governing the atmospheric and oceanic behavior in this part of the world. The talk will lay out what is happening to West Antarctica at present and what may happen in the future as worldwide temperatures continue to increase.
wn.com/Climate Change And West Antarctica David Bromwich (Seti Talks)
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is slowly adding to the rise of global ocean levels. It is now thought that the ice sheet is undergoing irreversible marine ice sheet collapse. The primary cause is bottom melting of coastal ice shelves in the Amundsen Sea sector driven by oceanic and/or atmospheric factors. In addition, the air temperature over the ice sheet interior has risen substantially over the past 50 years at a rate comparable to that recorded on the adjacent Antarctic Peninsula. There are many tropical and high latitude influences at play governing the atmospheric and oceanic behavior in this part of the world. The talk will lay out what is happening to West Antarctica at present and what may happen in the future as worldwide temperatures continue to increase.
- published: 14 Oct 2014
- views: 3475
West Antarctic Ice Melt Reaches Point Of No Return
- Order: Reorder
- Duration: 1:46
- Updated: 12 May 2014
- views: 2717
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call the continued melting "unstoppable."
Follow Zach Toombs: http://www....
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call the continued melting "unstoppable."
Follow Zach Toombs: http://www.twitter.com/ZachToombs
See more at http://www.newsy.com
Sources:
NASA https://www.youtube.com/watch?v=Adh86ma3oxw
NASA https://www.youtube.com/watch?v=dXVWGGmNRiI
LiveScience http://www.livescience.com/45534-west-antarctica-collapse-starts.html
National Snow and Ice Data Center https://www.youtube.com/watch?v=CBD8hWbiFMI
The New York Times http://www.nytimes.com/2014/05/13/science/earth/collapse-of-parts-of-west-antarctica-ice-sheet-has-begun-scientists-say.html?gwh=8346613ECA5316245B41859AFDB46F03&gwt;=pay&assetType;=nyt_now&_r=0
Image via: Wikimedia Commons / Dave Pape
http://commons.wikimedia.org/wiki/File:Antarctica_6400px_from_Blue_Marble.jpg
wn.com/West Antarctic Ice Melt Reaches Point Of No Return
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call the continued melting "unstoppable."
Follow Zach Toombs: http://www.twitter.com/ZachToombs
See more at http://www.newsy.com
Sources:
NASA https://www.youtube.com/watch?v=Adh86ma3oxw
NASA https://www.youtube.com/watch?v=dXVWGGmNRiI
LiveScience http://www.livescience.com/45534-west-antarctica-collapse-starts.html
National Snow and Ice Data Center https://www.youtube.com/watch?v=CBD8hWbiFMI
The New York Times http://www.nytimes.com/2014/05/13/science/earth/collapse-of-parts-of-west-antarctica-ice-sheet-has-begun-scientists-say.html?gwh=8346613ECA5316245B41859AFDB46F03&gwt;=pay&assetType;=nyt_now&_r=0
Image via: Wikimedia Commons / Dave Pape
http://commons.wikimedia.org/wiki/File:Antarctica_6400px_from_Blue_Marble.jpg
- published: 12 May 2014
- views: 2717
Western Antarctic Ice Sheet Collapse Has Already Begun
- Order: Reorder
- Duration: 1:36
- Updated: 27 Aug 2015
- views: 725
For More Latest News Subscribe us:
MIAMI: Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more i...
For More Latest News Subscribe us:
MIAMI: Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more is unavoidable in the next 100-200 years, NASA scientists said Wednesday.
Ice sheets in Greenland and Antarctica are melting faster than ever, and oceans are warming and expanding much more rapidly than they have in years past.
Rising seas will have "profound impacts" around the world, said Michael Freilich, director of NASA's Earth Science Division.
"More than 150 million people, most of them in Asia, live within one meter of present sea level," he said.
Low-lying US states such as Florida are at risk of disappearing, as are some of the world's major cities such as Singapore and Tokyo.
"It may entirely eliminate some Pacific island nations," he said.
There is no doubt that global coastlines will look very different in years to come, US space agency experts told reporters on a conference call to discuss the latest data on sea level rise.
"Right now we have committed to probably more than three feet (one meter) of sea level rise, just based on the warming we have had so far," said Steve Nerem of the University of Colorado, Boulder and leader of NASA's sea level rise team
It will very likely get worse in the future," he told reporters.
"The biggest uncertainty is predicting how quickly the polar ice sheets will melt."
wn.com/Western Antarctic Ice Sheet Collapse Has Already Begun
For More Latest News Subscribe us:
MIAMI: Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more is unavoidable in the next 100-200 years, NASA scientists said Wednesday.
Ice sheets in Greenland and Antarctica are melting faster than ever, and oceans are warming and expanding much more rapidly than they have in years past.
Rising seas will have "profound impacts" around the world, said Michael Freilich, director of NASA's Earth Science Division.
"More than 150 million people, most of them in Asia, live within one meter of present sea level," he said.
Low-lying US states such as Florida are at risk of disappearing, as are some of the world's major cities such as Singapore and Tokyo.
"It may entirely eliminate some Pacific island nations," he said.
There is no doubt that global coastlines will look very different in years to come, US space agency experts told reporters on a conference call to discuss the latest data on sea level rise.
"Right now we have committed to probably more than three feet (one meter) of sea level rise, just based on the warming we have had so far," said Steve Nerem of the University of Colorado, Boulder and leader of NASA's sea level rise team
It will very likely get worse in the future," he told reporters.
"The biggest uncertainty is predicting how quickly the polar ice sheets will melt."
- published: 27 Aug 2015
- views: 725
In-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
- Order: Reorder
- Duration: 36:40
- Updated: 25 Feb 2015
- views: 10087
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Antarctica. Shot during January 2015 while I was working on the DISC Dril...
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Antarctica. Shot during January 2015 while I was working on the DISC Drill with the University of Wisconsin Ice Drill Design and Operations team. For more on my adventures in Antarctica, check out http://JeffreyDonenfeld.com/Antarctica
Also, be sure to check out my full tour of the Amundsen-Scott South Pole Station - https://www.youtube.com/watch?v=P5lQ9DCXIbs
wn.com/In Depth Tour Of The West Antarctic Ice Sheet Field Camp, Antarctica
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Antarctica. Shot during January 2015 while I was working on the DISC Drill with the University of Wisconsin Ice Drill Design and Operations team. For more on my adventures in Antarctica, check out http://JeffreyDonenfeld.com/Antarctica
Also, be sure to check out my full tour of the Amundsen-Scott South Pole Station - https://www.youtube.com/watch?v=P5lQ9DCXIbs
- published: 25 Feb 2015
- views: 10087
WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
- Order: Reorder
- Duration: 2:16
- Updated: 12 May 2014
- views: 45979
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sheet—a vast swath of ice that could unleash a slow but unstoppable 10-f...
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sheet—a vast swath of ice that could unleash a slow but unstoppable 10-foot rise in sea levels if it melted. So here is today's terrible news: we now know the ice sheet is melting. And there's pretty much nothing we can do to about it. Ice is melting in the western Antarctic at an unstoppable pace, scientists said Monday, warning that the discovery holds major consequences for global sea level rise in the coming decades. The speedy melting means that prior calculations of sea level rise worldwide made by the Intergovernmental Panel on Climate Change will have to be adjusted upwards, scientists told reporters.
Tags:
World Flood
West Antarctic Ice
West Antarctic Ice Melting
West Antarctic Ice Collapse
New World 2014
wn.com/World Flood 2016 West Antarctic Ice Sheet Melting Must See
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sheet—a vast swath of ice that could unleash a slow but unstoppable 10-foot rise in sea levels if it melted. So here is today's terrible news: we now know the ice sheet is melting. And there's pretty much nothing we can do to about it. Ice is melting in the western Antarctic at an unstoppable pace, scientists said Monday, warning that the discovery holds major consequences for global sea level rise in the coming decades. The speedy melting means that prior calculations of sea level rise worldwide made by the Intergovernmental Panel on Climate Change will have to be adjusted upwards, scientists told reporters.
Tags:
World Flood
West Antarctic Ice
West Antarctic Ice Melting
West Antarctic Ice Collapse
New World 2014
- published: 12 May 2014
- views: 45979
Eric Rignot on Ice Sheet Retreat
- Order: Reorder
- Duration: 4:27
- Updated: 02 Feb 2015
- views: 2279
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NASA Jet Propulsion Lab, was co-author of a recent study showing that Wes...
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NASA Jet Propulsion Lab, was co-author of a recent study showing that West Antarctica ice sheets are in a state of irreversible collapse, and that several meters of sea level rise are now "locked in", with the only question being - how fast?
Trouble is, we don't know how fast, and they've moved very, very quickly in the past.
https://www.youtube.com/watch?v=71l9lzLsBRc
wn.com/Eric Rignot On Ice Sheet Retreat
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NASA Jet Propulsion Lab, was co-author of a recent study showing that West Antarctica ice sheets are in a state of irreversible collapse, and that several meters of sea level rise are now "locked in", with the only question being - how fast?
Trouble is, we don't know how fast, and they've moved very, very quickly in the past.
https://www.youtube.com/watch?v=71l9lzLsBRc
- published: 02 Feb 2015
- views: 2279
Video file: West Antarctic Glacier Loss Appears Unstoppable
- Order: Reorder
- Duration: 10:18
- Updated: 12 May 2014
- views: 14367
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion Laboratory and the University of California, Irvine, finds that a rapi...
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion Laboratory and the University of California, Irvine, finds that a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the entire glacial basin from melting into the sea. Three major lines of evidence point to the glaciers' eventual demise: their flow speeds and how they change with time, how much each glacier is floating on seawater rather than lying on land, and the slope of the terrain they are flowing over and its depth below sea level. These glaciers already contribute significantly to sea level rise, releasing as much ice into the ocean each year as the entire Greenland Ice Sheet does.
wn.com/Video File West Antarctic Glacier Loss Appears Unstoppable
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion Laboratory and the University of California, Irvine, finds that a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the entire glacial basin from melting into the sea. Three major lines of evidence point to the glaciers' eventual demise: their flow speeds and how they change with time, how much each glacier is floating on seawater rather than lying on land, and the slope of the terrain they are flowing over and its depth below sea level. These glaciers already contribute significantly to sea level rise, releasing as much ice into the ocean each year as the entire Greenland Ice Sheet does.
- published: 12 May 2014
- views: 14367
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
- Order: Reorder
- Duration: 1:07
- Updated: 13 May 2014
- views: 22065
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A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA.
Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica.
Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf.
Another study published by the University of California, Irvine, shows that warmer water at the depths of the ocean form caverns beneath the ice, wearing away ice grounded at the ocean floor.
These studies conclude that Antarctic instability will significantly contribute to sea level rise in the decades to come.
------------------------------------------------------------------------------------------------
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wn.com/Global Warming, Antarctic Volcanoes West Antarctic Ice Sheet Collapse Likely Unstoppable
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A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA.
Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica.
Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf.
Another study published by the University of California, Irvine, shows that warmer water at the depths of the ocean form caverns beneath the ice, wearing away ice grounded at the ocean floor.
These studies conclude that Antarctic instability will significantly contribute to sea level rise in the decades to come.
------------------------------------------------------------------------------------------------
Welcome to TomoNews, where we animate the most entertaining news on the internets. Come here for an animated look at viral headlines, US news, celebrity gossip, salacious scandals, dumb criminals and much more! Subscribe now for daily news animations that will knock your socks off.
Check out our Android app: https://play.google.com/store/apps/details?id=com.nextmedia.gan
Check out our iOS app: https://itunes.apple.com/app/tomonews/id633875353
For news that's fun and never boring, visit our channel:
https://www.youtube.com/user/TomoNewsUS
Subscribe to stay updated on all the top stories:
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- published: 13 May 2014
- views: 22065
The West Antarctic Ice Sheet Is Melting Much Faster
- Order: Reorder
- Duration: 1:15
- Updated: 01 Apr 2016
- views: 66
-
Antarctic Ice Animals Beauty and Nature PBS NOVA Documentary HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km (5.4 million sq. miles) and contains 26.5 million cubic km of ice (6.36 million cubic miles). That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to about 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. Much of the land in this area would be seabed if the ice sheet were not there. In contrast to the melting of the Arctic sea ice, sea ice around Antarctica has expanded in recent y...
published: 02 Jul 2015 -
Under Antarctic Ice - Nature Documentary - Documentary Films
Under Antarctic Ice - Nature Documentary - Documentary Films The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there. The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago an...
published: 07 Apr 2015 -
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel Travel with Aurora Expeditions on board Polar Pioneer to Antarctica and South Georgia and discover a world of mesmerising icebergs, snowy mountain tops, sparkling glaciers and unique wildlife. Antarctica (Listeni(https://en.wikipedia.org/wiki/Help:IPA_for_English)/æntˈɑrktɪkə/(https://en.wikipedia.org/wiki/Help:IPA_for_English) or /æntˈɑrtɪkə/)[Note 1] is Earth's(https://en.wikipedia.org/wiki/Earth) southernmost continent(https://en.wikipedia.org/wiki/Continent), containing the geographic South Pole(https://en.wikipedia.org/wiki/South_Pole). It is situated in the Antarctic(https://en.wikipedia.org/wiki/Antarctic) region of the Southern Hemisphere(https://en.wikipedia.org/wiki/Southern_Hem...
published: 24 Oct 2015 -
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD]
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD] Antarctica is Earth's southernmost continent, containing the geographic South Pole. Documentary HD. Antarctica, Nature & Wildlife, PBS Documentary HD, 2015 Documentary, National Geographic, The BBC, Amazing Documentary. We share information only for educational purposes Subscribe & Join us : Don't Forget To . Most Popular Nature Wildlife Amazing Wildlife of Alaska: The Great Zebra Migration: Nature and Wildlife .
published: 06 Jun 2015 -
NASA | From the Cockpit: The Best of IceBridge Arctic '13
The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn't travel to both ends of the Earth for the scenery of course -- the airborne mission is there to collect radar, laser altimetry, and other data on the changing ice sheets, glaciers, and sea ice of the Arctic and Antarctic. But for those of us who aren't polar pilots, here's a selection of some of the best footage from the forward and nadir cameras mounted to the aircraft taken during IceBridge's spring deployment over Greenland and the Arctic Ocean. IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These ...
published: 16 Aug 2013 -
Patagonia trip 2016 (HD 1080p)
Visit Patagonia, Patagonia trip, Patagonia tourism, Patagonia tours, Patagonia trip 2016, Patagonia travel, Patagonia travel guide, Patagonia holidays, Tourist attractions in Patagonia, Patagonia Tour Packages Travel Videos HD, World Travel Guide http://www.youtube.com/subscription_center?add_user=World1Tube Patagonia is a region in the south of Argentina bordered in the north by the Cuyo and Pampas regions, in the east by the Atlantic Ocean, and in the south and west by Chile. See in Patagonia trip ===================== View the Perito Moreno Glacier in Los Glaciares National Park from El Calafate. View the Patagonian Ice Sheet from an airplane or nearby mountain. Visit penguin colonies near Ushuaia, the southernmost city in the world. Itineraries Do in Patagonia trip ==============...
published: 04 Mar 2016 -
Beware Antarctic Crevasses
http://icestories.exploratorium.edu Slawek Tulaczyk, a West Antarctic Ice Sheet (WAIS) glaciologist recounts the perils of traveling by ski-doo over snow-covered expanses of ice sheet.
published: 27 Feb 2008 -
Spectacular Ross Sea!
Passengers aboard one of our Ross Sea Journeys will travel along the southern parts of the Antarctic Peninsula, Peter I Island, the Bellingshausen and Amundsen Seas into the Ross Sea. Visiting the Ross Ice-shelf, Dry Valleys, McMurdo Station, Campbell Island and the historic huts of discovery voyagers Scott and Shackleton. Ortelius will be equipped with helicopters. Be prepared for an unforgettable memory.
published: 24 Sep 2015 -
Cosmic Journeys - Fate of Antarctica
The episode of Cosmic Journeys explores the intersection of paleoclimate and current climate science. Through its turbulent history, Antarctica has played an important role in the evolution of planet Earth. This role will likely continue as a warming global climate begins to eat away at the ice sheets that cover the continent. The fate of the world as we know it is linked to the fate of Antarctica.
published: 22 Jul 2014 -
Antarctica - Facts and Figures | Mocomi Kids
http://mocomi.com/ presents: Antarctica - the highest, driest, emptiest, coldest place on earth. Over 98% of Antarctica is covered by the unbroken polar ice sheet. If the ice sheet melted, the oceans would rise by around 65 meters. The size of the Antarctic ice sheet doubles every winter. The elevation at the south pole is 9300 feet although the bedrock is only a 100 feet above sea level. It is the driest and coldest place on earth. The lowest recorded temperature in history is -128 degrees F. Antarctica is the 5th largest continent with a population of 0. Antarctica is the only continent with no countries. Samples of ice extracted from the ice sheet give scientists valuable information about the earth’s climate from millions of years ago. Antarctica is the only continent with n...
published: 28 Mar 2013
Antarctic Ice Animals Beauty and Nature PBS NOVA Documentary HD
- Order: Reorder
- Duration: 53:21
- Updated: 02 Jul 2015
- views: 91100
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on E...
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km (5.4 million sq. miles) and contains 26.5 million cubic km of ice (6.36 million cubic miles). That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to about 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. Much of the land in this area would be seabed if the ice sheet were not there.
In contrast to the melting of the Arctic sea ice, sea ice around Antarctica has expanded in recent years. The reasons for this are not fully understood, but suggestions include the climatic effects on ocean and atmospheric circulation of the ozone hole, and/or cooler ocean surface temperatures as the warming deep waters melt the ice shelves.
Under the Antarctic Ice: Beauty of The Nature (HD Nature Documentary) Beneath Antarctica's frozen seas lies one of Earth's most stable and vibrant ecosystems -- and one of its most enchanting.
wn.com/Antarctic Ice Animals Beauty And Nature Pbs Nova Documentary Hd
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km (5.4 million sq. miles) and contains 26.5 million cubic km of ice (6.36 million cubic miles). That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to about 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. Much of the land in this area would be seabed if the ice sheet were not there.
In contrast to the melting of the Arctic sea ice, sea ice around Antarctica has expanded in recent years. The reasons for this are not fully understood, but suggestions include the climatic effects on ocean and atmospheric circulation of the ozone hole, and/or cooler ocean surface temperatures as the warming deep waters melt the ice shelves.
Under the Antarctic Ice: Beauty of The Nature (HD Nature Documentary) Beneath Antarctica's frozen seas lies one of Earth's most stable and vibrant ecosystems -- and one of its most enchanting.
- published: 02 Jul 2015
- views: 91100
Under Antarctic Ice - Nature Documentary - Documentary Films
- Order: Reorder
- Duration: 67:26
- Updated: 07 Apr 2015
- views: 1081
Under Antarctic Ice - Nature Documentary - Documentary Films
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the ...
Under Antarctic Ice - Nature Documentary - Documentary Films
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.
wn.com/Under Antarctic Ice Nature Documentary Documentary Films
Under Antarctic Ice - Nature Documentary - Documentary Films
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.
- published: 07 Apr 2015
- views: 1081
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
- Order: Reorder
- Duration: 4:43
- Updated: 24 Oct 2015
- views: 589
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Travel with Aurora Expeditions on board Polar Pioneer to A...
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Travel with Aurora Expeditions on board Polar Pioneer to Antarctica and South Georgia and discover a world of mesmerising icebergs, snowy mountain tops, sparkling glaciers and unique wildlife.
Antarctica (Listeni(https://en.wikipedia.org/wiki/Help:IPA_for_English)/æntˈɑrktɪkə/(https://en.wikipedia.org/wiki/Help:IPA_for_English) or /æntˈɑrtɪkə/)[Note 1] is Earth's(https://en.wikipedia.org/wiki/Earth) southernmost continent(https://en.wikipedia.org/wiki/Continent), containing the geographic South Pole(https://en.wikipedia.org/wiki/South_Pole). It is situated in the Antarctic(https://en.wikipedia.org/wiki/Antarctic) region of the Southern Hemisphere(https://en.wikipedia.org/wiki/Southern_Hemisphere), almost entirely south of the Antarctic Circle(https://en.wikipedia.org/wiki/Antarctic_Circle), and is surrounded by the Southern Ocean(https://en.wikipedia.org/wiki/Southern_Ocean). At 14,000,000 square kilometres (5,400,000 square miles), it is the fifth-largest continent in area after Asia(https://en.wikipedia.org/wiki/Asia), Africa(https://en.wikipedia.org/wiki/Africa), North America(https://en.wikipedia.org/wiki/North_America), and South America(https://en.wikipedia.org/wiki/South_America). For comparison, Antarctica is nearly twice the size of Australia(https://en.wikipedia.org/wiki/Australia_(continent)). About 98% of Antarctica is covered by ice(https://en.wikipedia.org/wiki/Ice) that averages 1.9 kilometres (1.2 mi) in thickness,[5] which extends to all but the northernmost reaches of the Antarctic Peninsula(https://en.wikipedia.org/wiki/Antarctic_Peninsula).
Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation(https://en.wikipedia.org/wiki/Elevation) of all the continents.[6] Antarctica is considered a desert(https://en.wikipedia.org/wiki/Desert), with annual precipitation(https://en.wikipedia.org/wiki/Precipitation_(meteorology)) of only 200 mm (8 in) along the coast and far less inland.[7] The temperature in Antarctica has reached −89 °C (−129 °F), though the average for the third quarter (the coldest part of the year) is −63 °C (−81 °F). There are no permanent human residents, but anywhere from 1,000 to 5,000 people reside throughout the year at the research stations scattered across the continent. Organisms native to Antarctica include many types of algae(https://en.wikipedia.org/wiki/Algae), bacteria(https://en.wikipedia.org/wiki/Bacteria), fungi(https://en.wikipedia.org/wiki/Fungus), plants(https://en.wikipedia.org/wiki/Plant), protista(https://en.wikipedia.org/wiki/Protist), and certain animals(https://en.wikipedia.org/wiki/Animal), such as mites(https://en.wikipedia.org/wiki/Mite), nematodes(https://en.wikipedia.org/wiki/Nematode), penguins(https://en.wikipedia.org/wiki/Penguin), seals(https://en.wikipedia.org/wiki/Pinniped) and tardigrades(https://en.wikipedia.org/wiki/Tardigrade). Vegetation, where it occurs, is tundra(https://en.wikipedia.org/wiki/Tundra).
Although myths and speculation about a Terra Australis(https://en.wikipedia.org/wiki/Terra_Australis) ("Southern Land") date back to antiquity, the Russian expedition(https://en.wikipedia.org/wiki/List_of_Russian_explorers) of Fabian Gottlieb von Bellingshausen(https://en.wikipedia.org/wiki/Fabian_Gottlieb_von_Bellingshausen) and Mikhail Lazarev(https://en.wikipedia.org/wiki/Mikhail_Lazarev) on Vostok(https://en.wikipedia.org/wiki/Vostok_(sloop-of-war)) and Mirny(https://en.wikipedia.org/wiki/Mirny_(sloop-of-war)) first sighted a continental ice shelf(https://en.wikipedia.org/wiki/Ice_shelf) in 1820. The continent, however, remained largely neglected for the rest of the 19th century because of its hostile environment, lack of resources, and isolation.
Antarctica is a de facto condominium(https://en.wikipedia.org/wiki/Condominium_(international_law)), governed by parties to the Antarctic Treaty System(https://en.wikipedia.org/wiki/Antarctic_Treaty_System) that have consulting status. Twelve countries signed the Antarctic Treaty(https://en.wikipedia.org/wiki/Antarctic_Treaty_System) in 1959, and thirty-eight have signed it since then. The treaty prohibits military activities and mineral mining, prohibits nuclear explosions and nuclear waste disposal, supports scientific research, and protects the continent's ecozone(https://en.wikipedia.org/wiki/Ecozone). Ongoing experiments are conducted by more than 4,000 scientists from many nations..
For more info please visit:https://en.wikipedia.org/wiki/Antarctica
Under Creative Commons
By: Aurora Expeditions
For more info visit:https://vimeo.com/134263570
wn.com/Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Travel with Aurora Expeditions on board Polar Pioneer to Antarctica and South Georgia and discover a world of mesmerising icebergs, snowy mountain tops, sparkling glaciers and unique wildlife.
Antarctica (Listeni(https://en.wikipedia.org/wiki/Help:IPA_for_English)/æntˈɑrktɪkə/(https://en.wikipedia.org/wiki/Help:IPA_for_English) or /æntˈɑrtɪkə/)[Note 1] is Earth's(https://en.wikipedia.org/wiki/Earth) southernmost continent(https://en.wikipedia.org/wiki/Continent), containing the geographic South Pole(https://en.wikipedia.org/wiki/South_Pole). It is situated in the Antarctic(https://en.wikipedia.org/wiki/Antarctic) region of the Southern Hemisphere(https://en.wikipedia.org/wiki/Southern_Hemisphere), almost entirely south of the Antarctic Circle(https://en.wikipedia.org/wiki/Antarctic_Circle), and is surrounded by the Southern Ocean(https://en.wikipedia.org/wiki/Southern_Ocean). At 14,000,000 square kilometres (5,400,000 square miles), it is the fifth-largest continent in area after Asia(https://en.wikipedia.org/wiki/Asia), Africa(https://en.wikipedia.org/wiki/Africa), North America(https://en.wikipedia.org/wiki/North_America), and South America(https://en.wikipedia.org/wiki/South_America). For comparison, Antarctica is nearly twice the size of Australia(https://en.wikipedia.org/wiki/Australia_(continent)). About 98% of Antarctica is covered by ice(https://en.wikipedia.org/wiki/Ice) that averages 1.9 kilometres (1.2 mi) in thickness,[5] which extends to all but the northernmost reaches of the Antarctic Peninsula(https://en.wikipedia.org/wiki/Antarctic_Peninsula).
Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation(https://en.wikipedia.org/wiki/Elevation) of all the continents.[6] Antarctica is considered a desert(https://en.wikipedia.org/wiki/Desert), with annual precipitation(https://en.wikipedia.org/wiki/Precipitation_(meteorology)) of only 200 mm (8 in) along the coast and far less inland.[7] The temperature in Antarctica has reached −89 °C (−129 °F), though the average for the third quarter (the coldest part of the year) is −63 °C (−81 °F). There are no permanent human residents, but anywhere from 1,000 to 5,000 people reside throughout the year at the research stations scattered across the continent. Organisms native to Antarctica include many types of algae(https://en.wikipedia.org/wiki/Algae), bacteria(https://en.wikipedia.org/wiki/Bacteria), fungi(https://en.wikipedia.org/wiki/Fungus), plants(https://en.wikipedia.org/wiki/Plant), protista(https://en.wikipedia.org/wiki/Protist), and certain animals(https://en.wikipedia.org/wiki/Animal), such as mites(https://en.wikipedia.org/wiki/Mite), nematodes(https://en.wikipedia.org/wiki/Nematode), penguins(https://en.wikipedia.org/wiki/Penguin), seals(https://en.wikipedia.org/wiki/Pinniped) and tardigrades(https://en.wikipedia.org/wiki/Tardigrade). Vegetation, where it occurs, is tundra(https://en.wikipedia.org/wiki/Tundra).
Although myths and speculation about a Terra Australis(https://en.wikipedia.org/wiki/Terra_Australis) ("Southern Land") date back to antiquity, the Russian expedition(https://en.wikipedia.org/wiki/List_of_Russian_explorers) of Fabian Gottlieb von Bellingshausen(https://en.wikipedia.org/wiki/Fabian_Gottlieb_von_Bellingshausen) and Mikhail Lazarev(https://en.wikipedia.org/wiki/Mikhail_Lazarev) on Vostok(https://en.wikipedia.org/wiki/Vostok_(sloop-of-war)) and Mirny(https://en.wikipedia.org/wiki/Mirny_(sloop-of-war)) first sighted a continental ice shelf(https://en.wikipedia.org/wiki/Ice_shelf) in 1820. The continent, however, remained largely neglected for the rest of the 19th century because of its hostile environment, lack of resources, and isolation.
Antarctica is a de facto condominium(https://en.wikipedia.org/wiki/Condominium_(international_law)), governed by parties to the Antarctic Treaty System(https://en.wikipedia.org/wiki/Antarctic_Treaty_System) that have consulting status. Twelve countries signed the Antarctic Treaty(https://en.wikipedia.org/wiki/Antarctic_Treaty_System) in 1959, and thirty-eight have signed it since then. The treaty prohibits military activities and mineral mining, prohibits nuclear explosions and nuclear waste disposal, supports scientific research, and protects the continent's ecozone(https://en.wikipedia.org/wiki/Ecozone). Ongoing experiments are conducted by more than 4,000 scientists from many nations..
For more info please visit:https://en.wikipedia.org/wiki/Antarctica
Under Creative Commons
By: Aurora Expeditions
For more info visit:https://vimeo.com/134263570
- published: 24 Oct 2015
- views: 589
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD]
- Order: Reorder
- Duration: 78:44
- Updated: 06 Jun 2015
- views: 1171
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD] Antarctica is Earth's southernmost continent, containing the geographic South...
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD] Antarctica is Earth's southernmost continent, containing the geographic South Pole.
Documentary HD.
Antarctica, Nature & Wildlife, PBS Documentary HD, 2015 Documentary, National Geographic, The BBC, Amazing Documentary.
We share information only for educational purposes Subscribe & Join us : Don't Forget To .
Most Popular Nature Wildlife Amazing Wildlife of Alaska: The Great Zebra Migration: Nature and Wildlife .
wn.com/Beauty Under Antarctica's Ice Sheet, Icebergs Penguins Wildlife Documentary Hd
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD] Antarctica is Earth's southernmost continent, containing the geographic South Pole.
Documentary HD.
Antarctica, Nature & Wildlife, PBS Documentary HD, 2015 Documentary, National Geographic, The BBC, Amazing Documentary.
We share information only for educational purposes Subscribe & Join us : Don't Forget To .
Most Popular Nature Wildlife Amazing Wildlife of Alaska: The Great Zebra Migration: Nature and Wildlife .
- published: 06 Jun 2015
- views: 1171
NASA | From the Cockpit: The Best of IceBridge Arctic '13
- Order: Reorder
- Duration: 4:25
- Updated: 16 Aug 2013
- views: 242463
The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn't travel to both ends of the Earth f...
The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn't travel to both ends of the Earth for the scenery of course -- the airborne mission is there to collect radar, laser altimetry, and other data on the changing ice sheets, glaciers, and sea ice of the Arctic and Antarctic. But for those of us who aren't polar pilots, here's a selection of some of the best footage from the forward and nadir cameras mounted to the aircraft taken during IceBridge's spring deployment over Greenland and the Arctic Ocean.
IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice. Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- in orbit since 2003 -- and ICESat-2, planned for late 2015. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations. IceBridge will use airborne instruments to map Arctic and Antarctic areas once a year. The first IceBridge flights were conducted in March/May 2009 over Greenland and in October/November 2009 over Antarctica. Other smaller airborne surveys around the world are also part of the IceBridge campaign.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11341
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:
http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Or find NASA Goddard Space Flight Center on facebook:
http://www.facebook.com/NASA.GSFC
Or find us on Twitter:
http://twitter.com/NASAGoddard
wn.com/Nasa | From The Cockpit The Best Of Icebridge Arctic '13
The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn't travel to both ends of the Earth for the scenery of course -- the airborne mission is there to collect radar, laser altimetry, and other data on the changing ice sheets, glaciers, and sea ice of the Arctic and Antarctic. But for those of us who aren't polar pilots, here's a selection of some of the best footage from the forward and nadir cameras mounted to the aircraft taken during IceBridge's spring deployment over Greenland and the Arctic Ocean.
IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice. Data collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- in orbit since 2003 -- and ICESat-2, planned for late 2015. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations. IceBridge will use airborne instruments to map Arctic and Antarctic areas once a year. The first IceBridge flights were conducted in March/May 2009 over Greenland and in October/November 2009 over Antarctica. Other smaller airborne surveys around the world are also part of the IceBridge campaign.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11341
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:
http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Or find NASA Goddard Space Flight Center on facebook:
http://www.facebook.com/NASA.GSFC
Or find us on Twitter:
http://twitter.com/NASAGoddard
- published: 16 Aug 2013
- views: 242463
Patagonia trip 2016 (HD 1080p)
- Order: Reorder
- Duration: 33:27
- Updated: 04 Mar 2016
- views: 1071
Visit Patagonia, Patagonia trip, Patagonia tourism, Patagonia tours, Patagonia trip 2016, Patagonia travel, Patagonia travel guide, Patagonia holidays, Tourist ...
Visit Patagonia, Patagonia trip, Patagonia tourism, Patagonia tours, Patagonia trip 2016, Patagonia travel, Patagonia travel guide, Patagonia holidays, Tourist attractions in Patagonia, Patagonia Tour Packages
Travel Videos HD, World Travel Guide http://www.youtube.com/subscription_center?add_user=World1Tube
Patagonia is a region in the south of Argentina bordered in the north by the Cuyo and Pampas regions, in the east by the Atlantic Ocean, and in the south and west by Chile.
See in Patagonia trip
=====================
View the Perito Moreno Glacier in Los Glaciares National Park from El Calafate.
View the Patagonian Ice Sheet from an airplane or nearby mountain.
Visit penguin colonies near Ushuaia, the southernmost city in the world.
Itineraries
Do in Patagonia trip
==================
Motorcycle expeditions in Patagonia, Argentina [1] Compass Expeditions offers adventure Motorcycle Tours specializing in South America, in the the long vast expanses of Patagonia, tours from 10 days to 5 months. (In US 503 369 1955 or in Australia 613 536 86473).
Eat in Patagonia trip
======================
In Patagonia, there are plenty of unique and delicious things to eat. As in all of Argentina, beef is important, but particular to the area is the cordero, lamb, which is of a very unique flavor (supposedly because the Patagonian lamb eats a unique mixture of herbs found only in Patagonia) especially when grilled in the typical parrilla (grill).
Dulce de leche, similar to caramel and made by adding sugar to milk and cooking it, is used on nearly all desserts, including facturas (pastries eaten for breakfast or tea, or to accompany mate, filled with dulce de leche, dulce de membrillo, crema pastelera, roquefort, or many other things), alfajores (traditional cookies that consist of tiny biscuits stuck together), and many other Argentine desserts.
Regions
==========
Chubut
Neuquen
Rio Negro
Santa Cruz
Tierra del Fuego
Cities
==========
Neuquén – the largest city
Comodoro Rivadavia - port city and largest coastal city
San Carlos de Bariloche
Valdés Peninsula and Puerto Pirámides
Puerto Madryn
El Calafate
Rawson
Villa La Angostura
Ushuaia - Tourist centre of Tierra del Fuego, and base for most excursions, treks and trips to Antarctica. Arguably the most southerly city in the world.
Viedma
Zapala
Caleta Olivia - center of oil driller culture
Cutral Co
San Martín de los Andes
El Bolsón
Lago Puelo
Choele Choel
Chos Malal
Trelew
Gaiman - Welsh cultural center
Sarmiento
Río Gallegos
Río Grande, Argentina - fly-fishing capital
Other destinations
======================
Nahuel Huapi National Park
El Chalten
Los Glaciares National Park
Peninsula Valdes - It is an important nature reserve (whales, sea lions, dolphins, penguins) which was listed as a World Heritage Site by UNESCO in 1999.
wn.com/Patagonia Trip 2016 (Hd 1080P)
Visit Patagonia, Patagonia trip, Patagonia tourism, Patagonia tours, Patagonia trip 2016, Patagonia travel, Patagonia travel guide, Patagonia holidays, Tourist attractions in Patagonia, Patagonia Tour Packages
Travel Videos HD, World Travel Guide http://www.youtube.com/subscription_center?add_user=World1Tube
Patagonia is a region in the south of Argentina bordered in the north by the Cuyo and Pampas regions, in the east by the Atlantic Ocean, and in the south and west by Chile.
See in Patagonia trip
=====================
View the Perito Moreno Glacier in Los Glaciares National Park from El Calafate.
View the Patagonian Ice Sheet from an airplane or nearby mountain.
Visit penguin colonies near Ushuaia, the southernmost city in the world.
Itineraries
Do in Patagonia trip
==================
Motorcycle expeditions in Patagonia, Argentina [1] Compass Expeditions offers adventure Motorcycle Tours specializing in South America, in the the long vast expanses of Patagonia, tours from 10 days to 5 months. (In US 503 369 1955 or in Australia 613 536 86473).
Eat in Patagonia trip
======================
In Patagonia, there are plenty of unique and delicious things to eat. As in all of Argentina, beef is important, but particular to the area is the cordero, lamb, which is of a very unique flavor (supposedly because the Patagonian lamb eats a unique mixture of herbs found only in Patagonia) especially when grilled in the typical parrilla (grill).
Dulce de leche, similar to caramel and made by adding sugar to milk and cooking it, is used on nearly all desserts, including facturas (pastries eaten for breakfast or tea, or to accompany mate, filled with dulce de leche, dulce de membrillo, crema pastelera, roquefort, or many other things), alfajores (traditional cookies that consist of tiny biscuits stuck together), and many other Argentine desserts.
Regions
==========
Chubut
Neuquen
Rio Negro
Santa Cruz
Tierra del Fuego
Cities
==========
Neuquén – the largest city
Comodoro Rivadavia - port city and largest coastal city
San Carlos de Bariloche
Valdés Peninsula and Puerto Pirámides
Puerto Madryn
El Calafate
Rawson
Villa La Angostura
Ushuaia - Tourist centre of Tierra del Fuego, and base for most excursions, treks and trips to Antarctica. Arguably the most southerly city in the world.
Viedma
Zapala
Caleta Olivia - center of oil driller culture
Cutral Co
San Martín de los Andes
El Bolsón
Lago Puelo
Choele Choel
Chos Malal
Trelew
Gaiman - Welsh cultural center
Sarmiento
Río Gallegos
Río Grande, Argentina - fly-fishing capital
Other destinations
======================
Nahuel Huapi National Park
El Chalten
Los Glaciares National Park
Peninsula Valdes - It is an important nature reserve (whales, sea lions, dolphins, penguins) which was listed as a World Heritage Site by UNESCO in 1999.
- published: 04 Mar 2016
- views: 1071
Beware Antarctic Crevasses
- Order: Reorder
- Duration: 1:59
- Updated: 27 Feb 2008
- views: 4193
http://icestories.exploratorium.edu Slawek Tulaczyk, a West Antarctic Ice Sheet (WAIS) glaciologist recounts the perils of traveling by ski-doo over snow-covere...
http://icestories.exploratorium.edu Slawek Tulaczyk, a West Antarctic Ice Sheet (WAIS) glaciologist recounts the perils of traveling by ski-doo over snow-covered expanses of ice sheet.
wn.com/Beware Antarctic Crevasses
http://icestories.exploratorium.edu Slawek Tulaczyk, a West Antarctic Ice Sheet (WAIS) glaciologist recounts the perils of traveling by ski-doo over snow-covered expanses of ice sheet.
- published: 27 Feb 2008
- views: 4193
Spectacular Ross Sea!
- Order: Reorder
- Duration: 2:19
- Updated: 24 Sep 2015
- views: 47560
Passengers aboard one of our Ross Sea Journeys will travel along the southern parts of the Antarctic Peninsula, Peter I Island, the Bellingshausen and Amundsen ...
Passengers aboard one of our Ross Sea Journeys will travel along the southern parts of the Antarctic Peninsula, Peter I Island, the Bellingshausen and Amundsen Seas into the Ross Sea. Visiting the Ross Ice-shelf, Dry Valleys, McMurdo Station, Campbell Island and the historic huts of discovery voyagers Scott and Shackleton. Ortelius will be equipped with helicopters. Be prepared for an unforgettable memory.
wn.com/Spectacular Ross Sea
Passengers aboard one of our Ross Sea Journeys will travel along the southern parts of the Antarctic Peninsula, Peter I Island, the Bellingshausen and Amundsen Seas into the Ross Sea. Visiting the Ross Ice-shelf, Dry Valleys, McMurdo Station, Campbell Island and the historic huts of discovery voyagers Scott and Shackleton. Ortelius will be equipped with helicopters. Be prepared for an unforgettable memory.
- published: 24 Sep 2015
- views: 47560
Cosmic Journeys - Fate of Antarctica
- Order: Reorder
- Duration: 25:24
- Updated: 22 Jul 2014
- views: 177828
The episode of Cosmic Journeys explores the intersection of paleoclimate and current climate science. Through its turbulent history, Antarctica has played an im...
The episode of Cosmic Journeys explores the intersection of paleoclimate and current climate science. Through its turbulent history, Antarctica has played an important role in the evolution of planet Earth. This role will likely continue as a warming global climate begins to eat away at the ice sheets that cover the continent. The fate of the world as we know it is linked to the fate of Antarctica.
wn.com/Cosmic Journeys Fate Of Antarctica
The episode of Cosmic Journeys explores the intersection of paleoclimate and current climate science. Through its turbulent history, Antarctica has played an important role in the evolution of planet Earth. This role will likely continue as a warming global climate begins to eat away at the ice sheets that cover the continent. The fate of the world as we know it is linked to the fate of Antarctica.
- published: 22 Jul 2014
- views: 177828
Antarctica - Facts and Figures | Mocomi Kids
- Order: Reorder
- Duration: 1:44
- Updated: 28 Mar 2013
- views: 44258
http://mocomi.com/ presents: Antarctica - the highest, driest, emptiest, coldest place on earth.
Over 98% of Antarctica is covered by the unbroken polar ice s...
http://mocomi.com/ presents: Antarctica - the highest, driest, emptiest, coldest place on earth.
Over 98% of Antarctica is covered by the unbroken polar ice sheet.
If the ice sheet melted, the oceans would rise by around 65 meters.
The size of the Antarctic ice sheet doubles every winter.
The elevation at the south pole is 9300 feet although the bedrock is only a 100 feet above sea level.
It is the driest and coldest place on earth.
The lowest recorded temperature in history is -128 degrees F.
Antarctica is the 5th largest continent with a population of 0.
Antarctica is the only continent with no countries.
Samples of ice extracted from the ice sheet give scientists valuable information about the earth’s climate from millions of years ago.
Antarctica is the only continent with no indigineous species of animals.
For more information about Antarctica Facts, read: http://mocomi.com/antarctica-facts-and-figures/
For more such earth and geography related videos and interactive articles, go to: http://mocomi.com/learn/geography/
Previous video on Geography, visit: http://youtu.be/BQ_Ethb6_Wk
Next video on Geography, visit: http://youtu.be/Jzyugh0dXRc
Follow Mocomi Kids,
on Facebook https://www.facebook.com/mocomikids/
on Twitter https://twitter.com/MocomiKids
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on Google+ https://plus.google.com/+mocomikids/
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wn.com/Antarctica Facts And Figures | Mocomi Kids
http://mocomi.com/ presents: Antarctica - the highest, driest, emptiest, coldest place on earth.
Over 98% of Antarctica is covered by the unbroken polar ice sheet.
If the ice sheet melted, the oceans would rise by around 65 meters.
The size of the Antarctic ice sheet doubles every winter.
The elevation at the south pole is 9300 feet although the bedrock is only a 100 feet above sea level.
It is the driest and coldest place on earth.
The lowest recorded temperature in history is -128 degrees F.
Antarctica is the 5th largest continent with a population of 0.
Antarctica is the only continent with no countries.
Samples of ice extracted from the ice sheet give scientists valuable information about the earth’s climate from millions of years ago.
Antarctica is the only continent with no indigineous species of animals.
For more information about Antarctica Facts, read: http://mocomi.com/antarctica-facts-and-figures/
For more such earth and geography related videos and interactive articles, go to: http://mocomi.com/learn/geography/
Previous video on Geography, visit: http://youtu.be/BQ_Ethb6_Wk
Next video on Geography, visit: http://youtu.be/Jzyugh0dXRc
Follow Mocomi Kids,
on Facebook https://www.facebook.com/mocomikids/
on Twitter https://twitter.com/MocomiKids
on Pinterest https://www.pinterest.com/mocomikids/
on Google+ https://plus.google.com/+mocomikids/
on LinkedIn https://www.linkedin.com/company/mocomi-kids
- published: 28 Mar 2013
- views: 44258
-
Documentary "Under the Antarctica" Full HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there. The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extin...
published: 12 Oct 2016 -
Under the Antarctica - Full Documentary HD 2016
Under the Antarctica - Full Documentary HD The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there. The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inlan...
published: 02 Oct 2016 -
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA. Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica. Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf. Another study published by the University of California, Irv...
published: 29 Sep 2016 -
Runaway Glaciers in West Antarctica
Glaciologist Eric Rignot of NASA's Jet Propulsion Laboratory and the University of California, Irvine, narrates this animation depicting the processes leading to the decline of six rapidly melting glaciers in West Antarctica. A new study by Rignot and others finds the rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea. Full press release at: http://www.jpl.nasa.gov/news/news.php...
published: 06 Sep 2016 -
New Life Forms May Lurk Under the Antarctic Ice
Researchers have discovered what may be a giant lake buried beneath the East Antarctic ice sheet. Satellite imagery shows linear grooves that are usually a telltale sign of being created from the outflows of a lake. The grooves appear to be spread out over 600 miles toward the east coast of Antarctica on Princess Elizabeth Land, between Vestfold Hills and the West Ice Shelf. It is conveniently located close to the Russian Vostok research station. Professor Martin Siegert co-director of the Grantham Institute at Imperial College in London leads the Lake Ellsworth Consortium –AUK-NERC funded program that “aims to explore a large subglacial lake beneath the ice shelf of West Antarctica.” He says,In size, this new ribbon-shaped lake, 60 miles long and 6 miles wide, would be only second in size...
published: 30 Aug 2016 -
Pervasive Ice Retreat in West Antarctica
Along the Bellingshausen Sea coast of West Antarctica, ice has been retreating inland being lost to the sea. Scientists knew this, but they lacked a full picture of the scale. Now a team of researchers has compiled a Landsat-based data set and found that such losses have been going on for at least the past four decades and along the vast majority of this coast. “We knew that ice had been retreating from this region recently,” said Frazer Christie, a doctoral candidate at the University of Edinburgh and a co-author of the study. “Now, thanks to a wealth of freely available satellite data, we know this has been occurring pervasively along the coastline for almost half a century.” The Bellingshausen Sea—named for the Russian Admiral who found the continent in 1820—lies to the west of the An...
published: 22 Jun 2016 -
Antarctic Edge: 70° South.Adventure 2015
Antarctic Edge: 70° South (Adventure Film 2015) In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. A group of world-class researchers is in a race to understand climate change in the fastest winter-warming place on earth: the West Antarctic Peninsula. Trekking through dangerous and uncharted landscape, these scientists push the limits of their research and come to terms with the sacrifices necessary to understand this rapidly changing world.
published: 21 Jun 2016 -
Climate Change Trigger Melting of Ice In Antartica
East Antarctica is the world's largest area of ice and, until recently, was thought to be more stable than the smaller West Antarctic ice sheet. The Totten Glacier, in particular, has rapidly become recognised as the most vulnerable of all the East Antarctic glaciers, with its floating ice shelf already in retreat. Tags: Fast News,Breaking News,Top Headlines,Super fast news,Khabare Superfast,Superfast!,news,sensational news,political news,sports news,Super fast,Jawaharlal Nehru University,controversy,students,union leader,sedition,anti-national’ slogans,Parliament attack,Kanhaiya Kumar,Rohith Vemula,Manish Sisodia,Nirbhaya Case,protests,Juvenile,Delhi Gang Rapist,DUSU,Delhi University Students Union,Jawaharlal Nehru University Students Union,JNUSU,Jantar Mantar,demonstrations,Union Finan...
published: 07 Jun 2016 -
Antarctic Edge: 70° South.Documentary 2015
Antarctic Edge: 70° South (Documentary Film 2015) In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. A group of world-class researchers is in a race to understand climate change in the fastest winter-warming place on earth: the West Antarctic Peninsula. Trekking through dangerous and uncharted landscape, these scientists push the limits of their research and come to terms with the sacrifices necessary to understand this rapidly changing world.
published: 03 Jun 2016 -
Antarctic Ice Giant Glaciers (National Geographic Documentary)
The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice sheet that covers West (or Lesser) Antarctica, the portion of Antarctica on the side of the Transantarctic Mountains which lies in the Western Hemisphere. The WAIS is classified as a marine-based ice sheet, meaning that its bed lies well below sea level and its edges flow into floating ice shelves. The WAIS is bounded by the Ross Ice Shelf, the Ronne Ice Shelf, and outlet glaciers that drain into the Amundsen Sea. It is estimated that the volume of the Antarctic ice sheet is about 25.4 million km3 (6.1 million cu mi), and the WAIS contains just under 10% of this, or 2.2 million km3 (530,000 cu mi).[1] The weight of the ice has caused the underlying rock to sink by between 0.5 and 1 kilometres (0.31–0.62 mi)[2] in...
published: 14 May 2016
Documentary "Under the Antarctica" Full HD
- Order: Reorder
- Duration: 52:30
- Updated: 12 Oct 2016
- views: 6
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on E...
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.
That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.
wn.com/Documentary Under The Antarctica Full Hd
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.
That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.
- published: 12 Oct 2016
- views: 6
Under the Antarctica - Full Documentary HD 2016
- Order: Reorder
- Duration: 52:30
- Updated: 02 Oct 2016
- views: 15
Under the Antarctica - Full Documentary HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continen...
Under the Antarctica - Full Documentary HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.
That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.
wn.com/Under The Antarctica Full Documentary Hd 2016
Under the Antarctica - Full Documentary HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.
That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.
- published: 02 Oct 2016
- views: 15
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
- Order: Reorder
- Duration: 1:12
- Updated: 29 Sep 2016
- views: 0
A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear ...
A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA.
Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica.
Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf.
Another study published by the University of California, Irvine, shows that warmer water at the depths of the ocean form caverns beneath the ice, wearing away ice grounded at the ocean floor.
These studies conclude that Antarctic instability will significantly contribute to sea level rise in the decades to come.
-------------------------------------------------------------
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wn.com/Global Warming, Antarctic Volcanoes West Antarctic Ice Sheet Collapse Likely Unstoppable
A number of studies published in the past year show that the melting of the West Antarctic ice sheet is likely unstoppable. The glacier will probably disappear in a matter of centuries, adding 13 feet (4 metres) of water to sea levels, according to NASA.
Researchers at Washington University in St. Louis recorded two bursts of seismic activity at the same location beneath Antarctica's ice sheet, leading them to the discovery an active volcano that will speed the rate of ice-mass loss in West Antarctica.
Eruptions are unlikely to break through the surface of the ice, but volcanic activity would melt the sheet, generating large volumes of water that would speed the flow of overlaying ice draining into the Ross Ice Shelf.
Another study published by the University of California, Irvine, shows that warmer water at the depths of the ocean form caverns beneath the ice, wearing away ice grounded at the ocean floor.
These studies conclude that Antarctic instability will significantly contribute to sea level rise in the decades to come.
-------------------------------------------------------------
Welcome to TomoNews, where we animate the most entertaining news on the internets. Come here for an animated look at viral headlines, US news, celebrity gossip, salacious scandals, dumb criminals and much more! Subscribe now for daily news animations that will knock your socks off.
Visit our official website for all the latest, uncensored videos: http://us.tomonews.com
Check out our Android app: http://bit.ly/1rddhCj
Check out our iOS app: http://bit.ly/1gO3z1f
Get top stories delivered to your inbox everyday: http://bit.ly/tomo-newsletter
See a story that should be animated? Tell us about it! Suggest a story here: http://bit.ly/suggest-tomonews
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- published: 29 Sep 2016
- views: 0
Runaway Glaciers in West Antarctica
- Order: Reorder
- Duration: 2:16
- Updated: 06 Sep 2016
- views: 8
Glaciologist Eric Rignot of NASA's Jet Propulsion Laboratory and the University of California, Irvine, narrates this animation depicting the processes leading t...
Glaciologist Eric Rignot of NASA's Jet Propulsion Laboratory and the University of California, Irvine, narrates this animation depicting the processes leading to the decline of six rapidly melting glaciers in West Antarctica. A new study by Rignot and others finds the rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea. Full press release at: http://www.jpl.nasa.gov/news/news.php...
wn.com/Runaway Glaciers In West Antarctica
Glaciologist Eric Rignot of NASA's Jet Propulsion Laboratory and the University of California, Irvine, narrates this animation depicting the processes leading to the decline of six rapidly melting glaciers in West Antarctica. A new study by Rignot and others finds the rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea. Full press release at: http://www.jpl.nasa.gov/news/news.php...
- published: 06 Sep 2016
- views: 8
New Life Forms May Lurk Under the Antarctic Ice
- Order: Reorder
- Duration: 2:01
- Updated: 30 Aug 2016
- views: 5
Researchers have discovered what may be a giant lake buried beneath the East Antarctic ice sheet. Satellite imagery shows linear grooves that are usually a tell...
Researchers have discovered what may be a giant lake buried beneath the East Antarctic ice sheet. Satellite imagery shows linear grooves that are usually a telltale sign of being created from the outflows of a lake. The grooves appear to be spread out over 600 miles toward the east coast of Antarctica on Princess Elizabeth Land, between Vestfold Hills and the West Ice Shelf. It is conveniently located close to the Russian Vostok research station.
Professor Martin Siegert co-director of the Grantham Institute at Imperial College in London leads the Lake Ellsworth Consortium –AUK-NERC funded program that “aims to explore a large subglacial lake beneath the ice shelf of West Antarctica.” He says,In size, this new ribbon-shaped lake, 60 miles long and 6 miles wide, would be only second in size to Lake Vostok, the fourth deepest lake on earth and the largest of Antarctica’s subglacial lakes. Geologists have not only discovered hints of the lake but also of the world’s biggest canyon, 621 miles long.
Dr. Neil Ross from Newcastle University, UK and co-author of the research says,Radio-echo-sounding (RES) was carried out in sections of the canyon. This ice-penetrating radar sent radio waves through the ice to map the rock contours below.
Lead researcher, Dr, Stewart Jamieson from the Department of Geography at Durham University in York, UK says,If a lake lies beneath the ice, scientists say that it may harbor unique life forms, microbial ecosystems, that may have evolved on their own under the ice for millions of years.
Christine Dow of the NASA Goddard Space Flight Center in the US says,Siegert sums up,The team hopes to present its further findings at a conference at Imperial College later this year.
wn.com/New Life Forms May Lurk Under The Antarctic Ice
Researchers have discovered what may be a giant lake buried beneath the East Antarctic ice sheet. Satellite imagery shows linear grooves that are usually a telltale sign of being created from the outflows of a lake. The grooves appear to be spread out over 600 miles toward the east coast of Antarctica on Princess Elizabeth Land, between Vestfold Hills and the West Ice Shelf. It is conveniently located close to the Russian Vostok research station.
Professor Martin Siegert co-director of the Grantham Institute at Imperial College in London leads the Lake Ellsworth Consortium –AUK-NERC funded program that “aims to explore a large subglacial lake beneath the ice shelf of West Antarctica.” He says,In size, this new ribbon-shaped lake, 60 miles long and 6 miles wide, would be only second in size to Lake Vostok, the fourth deepest lake on earth and the largest of Antarctica’s subglacial lakes. Geologists have not only discovered hints of the lake but also of the world’s biggest canyon, 621 miles long.
Dr. Neil Ross from Newcastle University, UK and co-author of the research says,Radio-echo-sounding (RES) was carried out in sections of the canyon. This ice-penetrating radar sent radio waves through the ice to map the rock contours below.
Lead researcher, Dr, Stewart Jamieson from the Department of Geography at Durham University in York, UK says,If a lake lies beneath the ice, scientists say that it may harbor unique life forms, microbial ecosystems, that may have evolved on their own under the ice for millions of years.
Christine Dow of the NASA Goddard Space Flight Center in the US says,Siegert sums up,The team hopes to present its further findings at a conference at Imperial College later this year.
- published: 30 Aug 2016
- views: 5
Pervasive Ice Retreat in West Antarctica
- Order: Reorder
- Duration: 0:16
- Updated: 22 Jun 2016
- views: 88
Along the Bellingshausen Sea coast of West Antarctica, ice has been retreating inland being lost to the sea. Scientists knew this, but they lacked a full pictur...
Along the Bellingshausen Sea coast of West Antarctica, ice has been retreating inland being lost to the sea. Scientists knew this, but they lacked a full picture of the scale. Now a team of researchers has compiled a Landsat-based data set and found that such losses have been going on for at least the past four decades and along the vast majority of this coast.
“We knew that ice had been retreating from this region recently,” said Frazer Christie, a doctoral candidate at the University of Edinburgh and a co-author of the study. “Now, thanks to a wealth of freely available satellite data, we know this has been occurring pervasively along the coastline for almost half a century.”
The Bellingshausen Sea—named for the Russian Admiral who found the continent in 1820—lies to the west of the Antarctic Peninsula. Examining Landsat data collected between 1975 and 2015, the researchers mapped the approximate locations of “grounding lines” in the ice along the Bellingshausen coast. These lines mark the intersection where glacial ice flowing from the continent is connected, or grounded, to the seafloor. Any ice past the grounding line usually floats on the sea as an ice shelf. When ice is lost to the sea, the grounding line retreats. Meanwhile, the ice loss contributes to global sea level rise.
Christie and colleagues used Landsat data to locate “inflection points” on the surface of the ice that indicate the approximate location of grounding lines below. An inflection point—which can be tricky to detect by an untrained eye—is defined as the last location where the slope of the ice dramatically changes before flattening out into an ice shelf or meeting the sea.
The team combined its Landsat projections of inflection points with radar data from the European Space Agency’s ERS 1 and 2 and CryoSat-2 satellites. They found that the majority of the coastline along the Bellinghausen Sea experienced some grounding line retreat over the past four decades. The findings were published in Geophysical Research Letters.
The widespread retreat has likely been caused by warmer ocean water licking at the undersides of the floating ice near the grounding line—or as the authors write: “an ingress of relatively warm circumpolar deep water.”
These images show an area near Eltanin Bay, where the majority of the grounding line is found at the seaward front of the ice. The first image was acquired by the Multispectral Scanner on Landsat 2 on February 18, 1975; the second image was acquired by the Operational Land Imager on Landsat 8 on March 2, 2015. The ice loss is most pronounced along the Ferrigno Ice Stream, which was named for Jane Ferrigno, a U.S. Geological Survey scientist who used satellite data (including Landsat) to map Antarctica.
“Our study provides important context for understanding the causes of ice retreat throughout Antarctica as a whole,” said Christie. “We now know West Antarctica has been changing for many decades, so the next challenge is to ascertain the key ice, ocean, and atmospheric factors responsible for such ice losses.”
http://go.nasa.gov/28Rfrah
wn.com/Pervasive Ice Retreat In West Antarctica
Along the Bellingshausen Sea coast of West Antarctica, ice has been retreating inland being lost to the sea. Scientists knew this, but they lacked a full picture of the scale. Now a team of researchers has compiled a Landsat-based data set and found that such losses have been going on for at least the past four decades and along the vast majority of this coast.
“We knew that ice had been retreating from this region recently,” said Frazer Christie, a doctoral candidate at the University of Edinburgh and a co-author of the study. “Now, thanks to a wealth of freely available satellite data, we know this has been occurring pervasively along the coastline for almost half a century.”
The Bellingshausen Sea—named for the Russian Admiral who found the continent in 1820—lies to the west of the Antarctic Peninsula. Examining Landsat data collected between 1975 and 2015, the researchers mapped the approximate locations of “grounding lines” in the ice along the Bellingshausen coast. These lines mark the intersection where glacial ice flowing from the continent is connected, or grounded, to the seafloor. Any ice past the grounding line usually floats on the sea as an ice shelf. When ice is lost to the sea, the grounding line retreats. Meanwhile, the ice loss contributes to global sea level rise.
Christie and colleagues used Landsat data to locate “inflection points” on the surface of the ice that indicate the approximate location of grounding lines below. An inflection point—which can be tricky to detect by an untrained eye—is defined as the last location where the slope of the ice dramatically changes before flattening out into an ice shelf or meeting the sea.
The team combined its Landsat projections of inflection points with radar data from the European Space Agency’s ERS 1 and 2 and CryoSat-2 satellites. They found that the majority of the coastline along the Bellinghausen Sea experienced some grounding line retreat over the past four decades. The findings were published in Geophysical Research Letters.
The widespread retreat has likely been caused by warmer ocean water licking at the undersides of the floating ice near the grounding line—or as the authors write: “an ingress of relatively warm circumpolar deep water.”
These images show an area near Eltanin Bay, where the majority of the grounding line is found at the seaward front of the ice. The first image was acquired by the Multispectral Scanner on Landsat 2 on February 18, 1975; the second image was acquired by the Operational Land Imager on Landsat 8 on March 2, 2015. The ice loss is most pronounced along the Ferrigno Ice Stream, which was named for Jane Ferrigno, a U.S. Geological Survey scientist who used satellite data (including Landsat) to map Antarctica.
“Our study provides important context for understanding the causes of ice retreat throughout Antarctica as a whole,” said Christie. “We now know West Antarctica has been changing for many decades, so the next challenge is to ascertain the key ice, ocean, and atmospheric factors responsible for such ice losses.”
http://go.nasa.gov/28Rfrah
- published: 22 Jun 2016
- views: 88
Antarctic Edge: 70° South.Adventure 2015
- Order: Reorder
- Duration: 87:53
- Updated: 21 Jun 2016
- views: 6
Antarctic Edge: 70° South (Adventure Film 2015)
In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. ...
Antarctic Edge: 70° South (Adventure Film 2015)
In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. A group of world-class researchers is in a race to understand climate change in the fastest winter-warming place on earth: the West Antarctic Peninsula. Trekking through dangerous and uncharted landscape, these scientists push the limits of their research and come to terms with the sacrifices necessary to understand this rapidly changing world.
wn.com/Antarctic Edge 70° South.Adventure 2015
Antarctic Edge: 70° South (Adventure Film 2015)
In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. A group of world-class researchers is in a race to understand climate change in the fastest winter-warming place on earth: the West Antarctic Peninsula. Trekking through dangerous and uncharted landscape, these scientists push the limits of their research and come to terms with the sacrifices necessary to understand this rapidly changing world.
- published: 21 Jun 2016
- views: 6
Climate Change Trigger Melting of Ice In Antartica
- Order: Reorder
- Duration: 18:52
- Updated: 07 Jun 2016
- views: 691
East Antarctica is the world's largest area of ice and, until recently, was thought to be more stable than the smaller West Antarctic ice sheet.
The Totten Gla...
East Antarctica is the world's largest area of ice and, until recently, was thought to be more stable than the smaller West Antarctic ice sheet.
The Totten Glacier, in particular, has rapidly become recognised as the most vulnerable of all the East Antarctic glaciers, with its floating ice shelf already in retreat.
Tags: Fast News,Breaking News,Top Headlines,Super fast news,Khabare Superfast,Superfast!,news,sensational news,political news,sports news,Super fast,Jawaharlal Nehru University,controversy,students,union leader,sedition,anti-national’ slogans,Parliament attack,Kanhaiya Kumar,Rohith Vemula,Manish Sisodia,Nirbhaya Case,protests,Juvenile,Delhi Gang Rapist,DUSU,Delhi University Students Union,Jawaharlal Nehru University Students Union,JNUSU,Jantar Mantar,demonstrations,Union Finance Minister,Quota ,Arun Jaitley,criminal,defamation,Delhi Chief Minister,Patiala House,AAP,Arvind Kejriwal,DDCA,Salman Khan,Acquittal,Salman Khan (Film Actor),Bollywood,Bollywood Str,Asaduddin,Owaisi,AIMIM,Bharat Mata Ki Jai,RSS,Bombay High Court,Congress,Sonia Gandhi,Rahul Gandhi,trial court,National Herald case,Gandhi,Congress,BJP,National Herald,Subramanian Swamy,Pakistan,Narendra Modi,Nawaz Sharif,Pakistani Terrorists,#Motiurrahmannizami,dhaka central jail,canada,Alberta,fort McMurray,Harish Rawat won, floor test,cm, uttarakandh
For more news and updates subscribe to Tez: https://www.youtube.com/user/teztvnews?sub_confirmation=1
wn.com/Climate Change Trigger Melting Of Ice In Antartica
East Antarctica is the world's largest area of ice and, until recently, was thought to be more stable than the smaller West Antarctic ice sheet.
The Totten Glacier, in particular, has rapidly become recognised as the most vulnerable of all the East Antarctic glaciers, with its floating ice shelf already in retreat.
Tags: Fast News,Breaking News,Top Headlines,Super fast news,Khabare Superfast,Superfast!,news,sensational news,political news,sports news,Super fast,Jawaharlal Nehru University,controversy,students,union leader,sedition,anti-national’ slogans,Parliament attack,Kanhaiya Kumar,Rohith Vemula,Manish Sisodia,Nirbhaya Case,protests,Juvenile,Delhi Gang Rapist,DUSU,Delhi University Students Union,Jawaharlal Nehru University Students Union,JNUSU,Jantar Mantar,demonstrations,Union Finance Minister,Quota ,Arun Jaitley,criminal,defamation,Delhi Chief Minister,Patiala House,AAP,Arvind Kejriwal,DDCA,Salman Khan,Acquittal,Salman Khan (Film Actor),Bollywood,Bollywood Str,Asaduddin,Owaisi,AIMIM,Bharat Mata Ki Jai,RSS,Bombay High Court,Congress,Sonia Gandhi,Rahul Gandhi,trial court,National Herald case,Gandhi,Congress,BJP,National Herald,Subramanian Swamy,Pakistan,Narendra Modi,Nawaz Sharif,Pakistani Terrorists,#Motiurrahmannizami,dhaka central jail,canada,Alberta,fort McMurray,Harish Rawat won, floor test,cm, uttarakandh
For more news and updates subscribe to Tez: https://www.youtube.com/user/teztvnews?sub_confirmation=1
- published: 07 Jun 2016
- views: 691
Antarctic Edge: 70° South.Documentary 2015
- Order: Reorder
- Duration: 84:33
- Updated: 03 Jun 2016
- views: 40
Antarctic Edge: 70° South (Documentary Film 2015)
In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet...
Antarctic Edge: 70° South (Documentary Film 2015)
In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. A group of world-class researchers is in a race to understand climate change in the fastest winter-warming place on earth: the West Antarctic Peninsula. Trekking through dangerous and uncharted landscape, these scientists push the limits of their research and come to terms with the sacrifices necessary to understand this rapidly changing world.
wn.com/Antarctic Edge 70° South.Documentary 2015
Antarctic Edge: 70° South (Documentary Film 2015)
In 2014, scientists declared West Antarctic ice sheet melt unstoppable, threatening the future of our planet. A group of world-class researchers is in a race to understand climate change in the fastest winter-warming place on earth: the West Antarctic Peninsula. Trekking through dangerous and uncharted landscape, these scientists push the limits of their research and come to terms with the sacrifices necessary to understand this rapidly changing world.
- published: 03 Jun 2016
- views: 40
Antarctic Ice Giant Glaciers (National Geographic Documentary)
- Order: Reorder
- Duration: 51:43
- Updated: 14 May 2016
- views: 9
The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice sheet that covers West (or Lesser) Antarctica, the portion of Antarctica on the sid...
The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice sheet that covers West (or Lesser) Antarctica, the portion of Antarctica on the side of the Transantarctic Mountains which lies in the Western Hemisphere. The WAIS is classified as a marine-based ice sheet, meaning that its bed lies well below sea level and its edges flow into floating ice shelves. The WAIS is bounded by the Ross Ice Shelf, the Ronne Ice Shelf, and outlet glaciers that drain into the Amundsen Sea.
It is estimated that the volume of the Antarctic ice sheet is about 25.4 million km3 (6.1 million cu mi), and the WAIS contains just under 10% of this, or 2.2 million km3 (530,000 cu mi).[1] The weight of the ice has caused the underlying rock to sink by between 0.5 and 1 kilometres (0.31–0.62 mi)[2] in a process known as isostatic depression.
Under the force of its own weight, the ice sheet deforms and flows. The interior ice flows slowly over rough bedrock. In some circumstances, ice can flow faster in ice streams, separated by slow-flowing ice ridges. The inter-stream ridges are frozen to the bed while the bed beneath the ice streams consists of water-saturated sediments. Many of these sediments were deposited before the ice sheet occupied the region, when much of West Antarctica was covered by the ocean. The rapid ice-stream flow is a non-linear process still not fully understood; streams can start and stop for unclear reasons.
wn.com/Antarctic Ice Giant Glaciers (National Geographic Documentary)
The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice sheet that covers West (or Lesser) Antarctica, the portion of Antarctica on the side of the Transantarctic Mountains which lies in the Western Hemisphere. The WAIS is classified as a marine-based ice sheet, meaning that its bed lies well below sea level and its edges flow into floating ice shelves. The WAIS is bounded by the Ross Ice Shelf, the Ronne Ice Shelf, and outlet glaciers that drain into the Amundsen Sea.
It is estimated that the volume of the Antarctic ice sheet is about 25.4 million km3 (6.1 million cu mi), and the WAIS contains just under 10% of this, or 2.2 million km3 (530,000 cu mi).[1] The weight of the ice has caused the underlying rock to sink by between 0.5 and 1 kilometres (0.31–0.62 mi)[2] in a process known as isostatic depression.
Under the force of its own weight, the ice sheet deforms and flows. The interior ice flows slowly over rough bedrock. In some circumstances, ice can flow faster in ice streams, separated by slow-flowing ice ridges. The inter-stream ridges are frozen to the bed while the bed beneath the ice streams consists of water-saturated sediments. Many of these sediments were deposited before the ice sheet occupied the region, when much of West Antarctica was covered by the ocean. The rapid ice-stream flow is a non-linear process still not fully understood; streams can start and stop for unclear reasons.
- published: 14 May 2016
- views: 9
-
AGU 2015: Eric Rignot - Ice Sheet Systems and Sea Level Change (Sea level rise)
Scientific Discipline: Cryosphere Speaker: Eric Rignot (NASA Jet Propulsion Laboratory) Abstract Modern views of ice sheets provided by satellites, airborne surveys, in situ data and paleoclimate records while transformative of glaciology have not fundamentally changed concerns about ice sheet stability and collapse that emerged in the 1970's. Motivated by the desire to learn more about ice sheets using new technologies, we stumbled on an unexplored field of science and witnessed surprising changes before realizing that most were coming too fast, soon and large. Ice sheets are integrant part of the Earth system; they interact vigorously with the atmosphere and the oceans, yet most of this interaction is not part of current global climate models. Since we have never witnessed the collapse...
published: 09 Jan 2016 -
Andy Caffrey's "The Most Important Video on youtube": West Antarctic Collapse
I've started two White House "We the People" petitions. We only get 30 days to collect 100,000 signatures, but when we do that, the President is pledged to evaluate the proposal and make a public response to it: WE PETITION THE OBAMA ADMINISTRATION TO: Develop a Leave 80% of Fossil Fuels in the Ground climate crisis national security plan to stabilize Greenland ice sheet 34 years of Republican and Democratic betrayal of our national security by conspiring to subvert U.S. property defense from fossil fuel-generated climate instability has now made the 20-feet sea level increase from an unstoppable collapse of the West Antarctic Ice Sheet inevitable. 80 of the world's 100 biggest nations will not exist at the end of the century. Once commenced the 20-feet increase is likely to jump a foot...
published: 02 Jun 2014 -
NASA experts explain ice melt in Antarctica
NASA hosted a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise. The briefing participants are: — Eric Rignot, professor of Earth system science at the University of California, Irvine, and glaciologist at NASA’s Jet Propulsion Laboratory in Pasadena, California; — Sridhar Anandakrishnan, professor of geosciences at Pennsylvania State University, University Park; Watch the full segment http://climatestate.com/2015/05/22/nasa-antarctic-ice-news-about-glacier-retreat/ Follow @http://facebook.com/ClimateState NASA 2014
published: 23 May 2015 -
PolarConnect Event with Yamini Bala and the West Antarctic Ice Sheet Microstructures Expedition
This one hour event is an introduction to the expedition with Yamini Bala and her team. They address life at McMurdo and what it will be like at their remote field site at WAIS Divide (West Antarctic Ice Sheet).
published: 12 Dec 2014 -
Earth Under water - Melting ice
Core samples, tide gauge readings, and, most recently, satellite measurements tell us that over the past century, the Global Mean Sea Level (GMSL) has risen by 4 to 8 inches (10 to 20 centimeters). However, the annual rate of rise over the past 20 years has been 0.13 inches (3.2 millimeters) a year, roughly twice the average speed of the preceding 80 years. Over the past century, the burning of fossil fuels and other human and natural activities has released enormous amounts of heat-trapping gases into the atmosphere. These emissions have caused the Earth's surface temperature to rise, and the oceans absorb about 80 percent of this additional heat. The rise in sea levels is linked to three primary factors, all induced by this ongoing global climate change: Thermal expansion: When wat...
published: 18 Mar 2016 -
Under the Antarctic Ice Beauty of The Nature 720p Documentary & Life Discovery HD
We share information only for educational purposes Subscribe & Join us : http://www.youtube.com/user/LifeDiscoveryDocu?sub_confirmation=1 Don't Forget To LIKE this video! Under the Antarctic Ice - Beauty of The Nature The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.[2] That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in t...
published: 03 May 2014 -
Under The Antarctic Ice (Documentary)
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice. That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there. The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extin...
published: 18 Apr 2014
AGU 2015: Eric Rignot - Ice Sheet Systems and Sea Level Change (Sea level rise)
- Order: Reorder
- Duration: 41:57
- Updated: 09 Jan 2016
- views: 3164
Scientific Discipline: Cryosphere
Speaker: Eric Rignot (NASA Jet Propulsion Laboratory)
Abstract
Modern views of ice sheets provided by satellites, airborne s...
Scientific Discipline: Cryosphere
Speaker: Eric Rignot (NASA Jet Propulsion Laboratory)
Abstract
Modern views of ice sheets provided by satellites, airborne surveys, in situ data and paleoclimate records while transformative of glaciology have not fundamentally changed concerns about ice sheet stability and collapse that emerged in the 1970's. Motivated by the desire to learn more about ice sheets using new technologies, we stumbled on an unexplored field of science and witnessed surprising changes before realizing that most were coming too fast, soon and large. Ice sheets are integrant part of the Earth system; they interact vigorously with the atmosphere and the oceans, yet most of this interaction is not part of current global climate models. Since we have never witnessed the collapse of a marine ice sheet, observations and exploration remain critical sentinels. At present, these observations suggest that Antarctica and Greenland have been launched into a path of multi-meter sea level rise caused by rapid climate warming.
While the current loss of ice sheet mass to the ocean remains a trickle, every mm of sea level change will take centuries of climate reversal to get back, several major marine-terminating sectors have been pushed out of equilibrium, and ice shelves are irremediably being lost. As glaciers retreat from their salty, warm, oceanic margins, they will melt away and retreat slower, but concerns remain about sea level change from vastly marine-based sectors: 2-m sea level equivalent in Greenland and 23-m in Antarctica. Significant changes affect 2/4 marine-based sectors in Greenland - Jakobshavn Isbræ. and the northeast stream - with Petermann Gl. not far behind.
Major changes have affected the Amundsen Sea sector of West Antarctica since the 1980s. Smaller yet significant changes affect the marine-based Wilkes Land sector of East Antarctica, a reminder that not all marine-based ice is in West Antarctica. Major advances in reducing uncertainties in sea level projections will require massive, interdisciplinary efforts that are not currently in place but are getting there. Projection scenarios are overwhelmingly conservative, pushed up by observations, awaiting more detailed knowledge of ocean circulation, winds, ice-ocean interaction, and mechanics of rapid ice fracture, not to mention the mere definition of static boundaries (ice thickness and sea floor bathymetry). https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/60094
Related The John F. Nye Lecture http://cryosphere.agu.org/nye-lecture-series/
wn.com/Agu 2015 Eric Rignot Ice Sheet Systems And Sea Level Change (Sea Level Rise)
Scientific Discipline: Cryosphere
Speaker: Eric Rignot (NASA Jet Propulsion Laboratory)
Abstract
Modern views of ice sheets provided by satellites, airborne surveys, in situ data and paleoclimate records while transformative of glaciology have not fundamentally changed concerns about ice sheet stability and collapse that emerged in the 1970's. Motivated by the desire to learn more about ice sheets using new technologies, we stumbled on an unexplored field of science and witnessed surprising changes before realizing that most were coming too fast, soon and large. Ice sheets are integrant part of the Earth system; they interact vigorously with the atmosphere and the oceans, yet most of this interaction is not part of current global climate models. Since we have never witnessed the collapse of a marine ice sheet, observations and exploration remain critical sentinels. At present, these observations suggest that Antarctica and Greenland have been launched into a path of multi-meter sea level rise caused by rapid climate warming.
While the current loss of ice sheet mass to the ocean remains a trickle, every mm of sea level change will take centuries of climate reversal to get back, several major marine-terminating sectors have been pushed out of equilibrium, and ice shelves are irremediably being lost. As glaciers retreat from their salty, warm, oceanic margins, they will melt away and retreat slower, but concerns remain about sea level change from vastly marine-based sectors: 2-m sea level equivalent in Greenland and 23-m in Antarctica. Significant changes affect 2/4 marine-based sectors in Greenland - Jakobshavn Isbræ. and the northeast stream - with Petermann Gl. not far behind.
Major changes have affected the Amundsen Sea sector of West Antarctica since the 1980s. Smaller yet significant changes affect the marine-based Wilkes Land sector of East Antarctica, a reminder that not all marine-based ice is in West Antarctica. Major advances in reducing uncertainties in sea level projections will require massive, interdisciplinary efforts that are not currently in place but are getting there. Projection scenarios are overwhelmingly conservative, pushed up by observations, awaiting more detailed knowledge of ocean circulation, winds, ice-ocean interaction, and mechanics of rapid ice fracture, not to mention the mere definition of static boundaries (ice thickness and sea floor bathymetry). https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/60094
Related The John F. Nye Lecture http://cryosphere.agu.org/nye-lecture-series/
- published: 09 Jan 2016
- views: 3164
Andy Caffrey's "The Most Important Video on youtube": West Antarctic Collapse
- Order: Reorder
- Duration: 95:52
- Updated: 02 Jun 2014
- views: 1320
I've started two White House "We the People" petitions. We only get 30 days to collect 100,000 signatures, but when we do that, the President is pledged to eval...
I've started two White House "We the People" petitions. We only get 30 days to collect 100,000 signatures, but when we do that, the President is pledged to evaluate the proposal and make a public response to it:
WE PETITION THE OBAMA ADMINISTRATION TO:
Develop a Leave 80% of Fossil Fuels in the Ground climate crisis national security plan to stabilize Greenland ice sheet
34 years of Republican and Democratic betrayal of our national security by conspiring to subvert U.S. property defense from fossil fuel-generated climate instability has now made the 20-feet sea level increase from an unstoppable collapse of the West Antarctic Ice Sheet inevitable. 80 of the world's 100 biggest nations will not exist at the end of the century. Once commenced the 20-feet increase is likely to jump a foot per year so all coastal nuclear power plants must begin decommissioning in 2014. We can't wait for the collapse to accelerate.
He must develop that emergency decommissioning plan, a mass relocation plan for all coastal residents, and determine how low atmospheric CO2 must go to assure the stability of the Greenland ice sheet to prevent 20 more feet of sea level increase.
http://wh.gov/loq8W
WE PETITION THE OBAMA ADMINISTRATION TO:
By executive order start the rescheduling of marijuana so that cannabis medical research in the U.S. is fully legal
Currently, under the Controlled Substances Act, marijuana is categorized as a schedule 1 drug. Under that law, "Substances in this schedule have no currently accepted medical use in the United States, a lack of accepted safety for use under medical supervision, and a high potential for abuse."
This is certainly untrue for marijuana and being a schedule 1 drug makes all medical research on marijuana in the United States illegal. We must now fully unleash research into the tremendous medical potential of cannabis/marijuana, which requires that it be rescheduled honestly and appropriately.
http://wh.gov/lAZFD
wn.com/Andy Caffrey's The Most Important Video On Youtube West Antarctic Collapse
I've started two White House "We the People" petitions. We only get 30 days to collect 100,000 signatures, but when we do that, the President is pledged to evaluate the proposal and make a public response to it:
WE PETITION THE OBAMA ADMINISTRATION TO:
Develop a Leave 80% of Fossil Fuels in the Ground climate crisis national security plan to stabilize Greenland ice sheet
34 years of Republican and Democratic betrayal of our national security by conspiring to subvert U.S. property defense from fossil fuel-generated climate instability has now made the 20-feet sea level increase from an unstoppable collapse of the West Antarctic Ice Sheet inevitable. 80 of the world's 100 biggest nations will not exist at the end of the century. Once commenced the 20-feet increase is likely to jump a foot per year so all coastal nuclear power plants must begin decommissioning in 2014. We can't wait for the collapse to accelerate.
He must develop that emergency decommissioning plan, a mass relocation plan for all coastal residents, and determine how low atmospheric CO2 must go to assure the stability of the Greenland ice sheet to prevent 20 more feet of sea level increase.
http://wh.gov/loq8W
WE PETITION THE OBAMA ADMINISTRATION TO:
By executive order start the rescheduling of marijuana so that cannabis medical research in the U.S. is fully legal
Currently, under the Controlled Substances Act, marijuana is categorized as a schedule 1 drug. Under that law, "Substances in this schedule have no currently accepted medical use in the United States, a lack of accepted safety for use under medical supervision, and a high potential for abuse."
This is certainly untrue for marijuana and being a schedule 1 drug makes all medical research on marijuana in the United States illegal. We must now fully unleash research into the tremendous medical potential of cannabis/marijuana, which requires that it be rescheduled honestly and appropriately.
http://wh.gov/lAZFD
- published: 02 Jun 2014
- views: 1320
NASA experts explain ice melt in Antarctica
- Order: Reorder
- Duration: 20:56
- Updated: 23 May 2015
- views: 5169
NASA hosted a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea...
NASA hosted a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise. The briefing participants are:
— Eric Rignot, professor of Earth system science at the University of California, Irvine, and glaciologist at NASA’s Jet Propulsion Laboratory in Pasadena, California;
— Sridhar Anandakrishnan, professor of geosciences at Pennsylvania State University, University Park;
Watch the full segment http://climatestate.com/2015/05/22/nasa-antarctic-ice-news-about-glacier-retreat/
Follow @http://facebook.com/ClimateState
NASA 2014
wn.com/Nasa Experts Explain Ice Melt In Antarctica
NASA hosted a media teleconference to discuss new research results on the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise. The briefing participants are:
— Eric Rignot, professor of Earth system science at the University of California, Irvine, and glaciologist at NASA’s Jet Propulsion Laboratory in Pasadena, California;
— Sridhar Anandakrishnan, professor of geosciences at Pennsylvania State University, University Park;
Watch the full segment http://climatestate.com/2015/05/22/nasa-antarctic-ice-news-about-glacier-retreat/
Follow @http://facebook.com/ClimateState
NASA 2014
- published: 23 May 2015
- views: 5169
PolarConnect Event with Yamini Bala and the West Antarctic Ice Sheet Microstructures Expedition
- Order: Reorder
- Duration: 58:32
- Updated: 12 Dec 2014
- views: 51
This one hour event is an introduction to the expedition with Yamini Bala and her team. They address life at McMurdo and what it will be like at their remote fi...
This one hour event is an introduction to the expedition with Yamini Bala and her team. They address life at McMurdo and what it will be like at their remote field site at WAIS Divide (West Antarctic Ice Sheet).
wn.com/Polarconnect Event With Yamini Bala And The West Antarctic Ice Sheet Microstructures Expedition
This one hour event is an introduction to the expedition with Yamini Bala and her team. They address life at McMurdo and what it will be like at their remote field site at WAIS Divide (West Antarctic Ice Sheet).
- published: 12 Dec 2014
- views: 51
Earth Under water - Melting ice
- Order: Reorder
- Duration: 44:45
- Updated: 18 Mar 2016
- views: 635
Core samples, tide gauge readings, and, most recently, satellite measurements tell us that over the past century, the Global Mean Sea Level (GMSL) has risen by ...
Core samples, tide gauge readings, and, most recently, satellite measurements tell us that over the past century, the Global Mean Sea Level (GMSL) has risen by 4 to 8 inches (10 to 20 centimeters). However, the annual rate of rise over the past 20 years has been 0.13 inches (3.2 millimeters) a year, roughly twice the average speed of the preceding 80 years.
Over the past century, the burning of fossil fuels and other human and natural activities has released enormous amounts of heat-trapping gases into the atmosphere. These emissions have caused the Earth's surface temperature to rise, and the oceans absorb about 80 percent of this additional heat.
The rise in sea levels is linked to three primary factors, all induced by this ongoing global climate change:
Thermal expansion: When water heats up, it expands. About half of the past century's rise in sea level is attributable to warmer oceans simply occupying more space.
Melting of glaciers and polar ice caps: Large ice formations, like glaciers and the polar ice caps, naturally melt back a bit each summer. But in the winter, snows, made primarily from evaporated seawater, are generally sufficient to balance out the melting. Recently, though, persistently higher temperatures caused by global warming have led to greater-than-average summer melting as well as diminished snowfall due to later winters and earlier springs. This imbalance results in a significant net gain in runoff versus evaporation for the ocean, causing sea levels to rise.
Ice loss from Greenland and West Antarctica: As with glaciers and the ice caps, increased heat is causing the massive ice sheets that cover Greenland and Antarctica to melt at an accelerated pace. Scientists also believe meltwater from above and seawater from below is seeping beneath Greenland's and West Antarctica's ice sheets, effectively lubricating ice streams and causing them to move more quickly into the sea. Moreover, higher sea temperatures are causing the massive ice shelves that extend out from Antarctica to melt from below, weaken, and break off.
Consequences
When sea levels rise rapidly, as they have been doing, even a small increase can have devastating effects on coastal habitats. As seawater reaches farther inland, it can cause destructive erosion, flooding of wetlands, contamination of aquifers and agricultural soils, and lost habitat for fish, birds, and plants.
When large storms hit land, higher sea levels mean bigger, more powerful storm surges that can strip away everything in their path.
In addition, hundreds of millions of people live in areas that will become increasingly vulnerable to flooding. Higher sea levels would force them to abandon their homes and relocate. Low-lying islands could be submerged completely.
How High Will It Go?
Most predictions say the warming of the planet will continue and likely will accelerate. Oceans will likely continue to rise as well, but predicting the amount is an inexact science. A recent study says we can expect the oceans to rise between 2.5 and 6.5 feet (0.8 and 2 meters) by 2100, enough to swamp many of the cities along the U.S. East Coast. More dire estimates, including a complete meltdown of the Greenland ice sheet, push sea level rise to 23 feet (7 meters), enough to submerge London.
wn.com/Earth Under Water Melting Ice
Core samples, tide gauge readings, and, most recently, satellite measurements tell us that over the past century, the Global Mean Sea Level (GMSL) has risen by 4 to 8 inches (10 to 20 centimeters). However, the annual rate of rise over the past 20 years has been 0.13 inches (3.2 millimeters) a year, roughly twice the average speed of the preceding 80 years.
Over the past century, the burning of fossil fuels and other human and natural activities has released enormous amounts of heat-trapping gases into the atmosphere. These emissions have caused the Earth's surface temperature to rise, and the oceans absorb about 80 percent of this additional heat.
The rise in sea levels is linked to three primary factors, all induced by this ongoing global climate change:
Thermal expansion: When water heats up, it expands. About half of the past century's rise in sea level is attributable to warmer oceans simply occupying more space.
Melting of glaciers and polar ice caps: Large ice formations, like glaciers and the polar ice caps, naturally melt back a bit each summer. But in the winter, snows, made primarily from evaporated seawater, are generally sufficient to balance out the melting. Recently, though, persistently higher temperatures caused by global warming have led to greater-than-average summer melting as well as diminished snowfall due to later winters and earlier springs. This imbalance results in a significant net gain in runoff versus evaporation for the ocean, causing sea levels to rise.
Ice loss from Greenland and West Antarctica: As with glaciers and the ice caps, increased heat is causing the massive ice sheets that cover Greenland and Antarctica to melt at an accelerated pace. Scientists also believe meltwater from above and seawater from below is seeping beneath Greenland's and West Antarctica's ice sheets, effectively lubricating ice streams and causing them to move more quickly into the sea. Moreover, higher sea temperatures are causing the massive ice shelves that extend out from Antarctica to melt from below, weaken, and break off.
Consequences
When sea levels rise rapidly, as they have been doing, even a small increase can have devastating effects on coastal habitats. As seawater reaches farther inland, it can cause destructive erosion, flooding of wetlands, contamination of aquifers and agricultural soils, and lost habitat for fish, birds, and plants.
When large storms hit land, higher sea levels mean bigger, more powerful storm surges that can strip away everything in their path.
In addition, hundreds of millions of people live in areas that will become increasingly vulnerable to flooding. Higher sea levels would force them to abandon their homes and relocate. Low-lying islands could be submerged completely.
How High Will It Go?
Most predictions say the warming of the planet will continue and likely will accelerate. Oceans will likely continue to rise as well, but predicting the amount is an inexact science. A recent study says we can expect the oceans to rise between 2.5 and 6.5 feet (0.8 and 2 meters) by 2100, enough to swamp many of the cities along the U.S. East Coast. More dire estimates, including a complete meltdown of the Greenland ice sheet, push sea level rise to 23 feet (7 meters), enough to submerge London.
- published: 18 Mar 2016
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Under the Antarctic Ice Beauty of The Nature 720p Documentary & Life Discovery HD
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- Duration: 53:17
- Updated: 03 May 2014
- views: 506978
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Under the Antarctic Ice - Beauty of The Nature
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.[2] That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago[3] and escalated inland widely during the Eocene--Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm[4] and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.[5] The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size.[6] The opening of the Drake Passage may have played a role as well[7] though models of the changes suggest declining CO2 levels to have been more important.[8]
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979--1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.[9] The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.[10] Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.[11][12] The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.[13]
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Under the Antarctic Ice - Beauty of The Nature
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.[2] That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago[3] and escalated inland widely during the Eocene--Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm[4] and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.[5] The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size.[6] The opening of the Drake Passage may have played a role as well[7] though models of the changes suggest declining CO2 levels to have been more important.[8]
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979--1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.[9] The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.[10] Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.[11][12] The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast.[13]
- published: 03 May 2014
- views: 506978
Under The Antarctic Ice (Documentary)
- Order: Reorder
- Duration: 52:30
- Updated: 18 Apr 2014
- views: 317
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on E...
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.
That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast. .
JOIN QUIZGROUP PARTNER PROGRAM: http://join.quizgroup.com/ .
wn.com/Under The Antarctic Ice (Documentary)
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 26.5 million cubic km of ice.
That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be seabed if the ice sheet were not there.
The icing of Antarctica began with ice-rafting from middle Eocene times about 45.5 million years ago and escalated inland widely during the Eocene - Oligocene extinction event about 34 million years ago. CO2 levels were then about 760 ppm and had been decreasing from earlier levels in the thousands of ppm. Carbon dioxide decrease, with a tipping point of 600 ppm, was the primary agent forcing Antarctic glaciation.
The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice-sheet growth alone indicating an ice age of some size. The opening of the Drake Passage may have played a role as well though models of the changes suggest declining CO2 levels to have been more important.
Ice enters the sheet through precipitation as snow. This snow is then compacted to form glacier ice which moves under gravity towards the coast. Most of it is carried to the coast by fast moving ice streams. The ice then passes into the ocean, often forming vast floating ice shelves. These shelves then melt or calve off to give icebergs that eventually melt.
If the transfer of the ice from the land to the sea is balanced by snow falling back on the land then there will be no net contribution to global sea levels. A 2002 analysis of NASA satellite data from 1979 - 1999 showed that while overall the land ice is decreasing, areas of Antarctica where sea ice was increasing outnumbered areas of decreasing sea ice roughly 2:1.
The general trend shows that a warming climate in the southern hemisphere would transport more moisture to Antarctica, causing the interior ice sheets to grow, while calving events along the coast will increase, causing these areas to shrink. A 2006 paper derived from satellite data, measures changes in the gravity of the ice mass, suggests that the total amount of ice in Antarctica has begun decreasing in the past few years.
Another recent study compared the ice leaving the ice sheet, by measuring the ice velocity and thickness along the coast, to the amount of snow accumulation over the continent. This found that the East Antarctic Ice Sheet was in balance but the West Antarctic Ice Sheet was losing mass. This was largely due to acceleration of ice streams such as Pine Island Glacier. These results agree closely with the gravity changes.
The estimate published in November 2012 and based on the GRACE data as well as on an improved glacial isostatic adjustment model indicates that an average yearly mass loss was 69 ± 18 Gt/y from 2002 to 2010. The West Antarctic Ice Sheet was approximately in balance while the East Antarctic Ice Sheet gained mass. The mass loss was mainly concentrated along the Amundsen Sea coast. .
JOIN QUIZGROUP PARTNER PROGRAM: http://join.quizgroup.com/ .
- published: 18 Apr 2014
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3:35
ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
Visit http://science.nasa.gov/science-news/science-at-nasa/2014/12may_noturningback/ for m...
published: 13 May 2014
ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
ScienceCasts: No Turning Back - West Antarctic Glaciers in Irreversible Decline
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53:49
Climate Change and West Antarctica - David Bromwich (SETI Talks)
The West Antarctic Ice Sheet contains the ice equivalent of 5 meters of sea level and is s...
published: 14 Oct 2014
Climate Change and West Antarctica - David Bromwich (SETI Talks)
Climate Change and West Antarctica - David Bromwich (SETI Talks)
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1:46
West Antarctic Ice Melt Reaches Point Of No Return
Scientists say the ice sheet is being melted from underneath by warm ocean water, and call...
published: 12 May 2014
West Antarctic Ice Melt Reaches Point Of No Return
West Antarctic Ice Melt Reaches Point Of No Return
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1:36
Western Antarctic Ice Sheet Collapse Has Already Begun
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published: 27 Aug 2015
Western Antarctic Ice Sheet Collapse Has Already Begun
Western Antarctic Ice Sheet Collapse Has Already Begun
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36:40
In-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
My personal tour of most of the facilities at the West Antarctic Ice Sheet Field Camp, Ant...
published: 25 Feb 2015
In-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
In-depth tour of the West Antarctic Ice Sheet Field Camp, Antarctica
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2:16
WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
Breaking News: For years, scientists have feared the collapse of the West Antarctic ice sh...
published: 12 May 2014
WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
WORLD FLOOD 2016: West Antarctic Ice Sheet Melting [MUST SEE]
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4:27
Eric Rignot on Ice Sheet Retreat
One of the most accomplished and respected Glaciologists on the planet, Eric Rignot of NAS...
published: 02 Feb 2015
Eric Rignot on Ice Sheet Retreat
Eric Rignot on Ice Sheet Retreat
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10:18
Video file: West Antarctic Glacier Loss Appears Unstoppable
Video file for media and public use. A new study by researchers at NASA's Jet Propulsion ...
published: 12 May 2014
Video file: West Antarctic Glacier Loss Appears Unstoppable
Video file: West Antarctic Glacier Loss Appears Unstoppable
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1:07
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
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published: 13 May 2014
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
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1:15
The West Antarctic Ice Sheet Is Melting Much Faster
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published: 01 Apr 2016
The West Antarctic Ice Sheet Is Melting Much Faster
The West Antarctic Ice Sheet Is Melting Much Faster
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53:21
Antarctic Ice Animals Beauty and Nature PBS NOVA Documentary HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98%...
published: 02 Jul 2015
Antarctic Ice Animals Beauty and Nature PBS NOVA Documentary HD
Antarctic Ice Animals Beauty and Nature PBS NOVA Documentary HD
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67:26
Under Antarctic Ice - Nature Documentary - Documentary Films
Under Antarctic Ice - Nature Documentary - Documentary Films
The Antarctic ice sheet is o...
published: 07 Apr 2015
Under Antarctic Ice - Nature Documentary - Documentary Films
Under Antarctic Ice - Nature Documentary - Documentary Films
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4:43
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarcti...
published: 24 Oct 2015
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
Antarctica Tourism ¦ Antarctica Tours ¦ Travel To Antarctica ¦ Antarctic Cruise ¦ Antarctica Travel
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- published: 24 Oct 2015
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78:44
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD]
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD] Antarct...
published: 06 Jun 2015
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD]
Beauty Under Antarctica's Ice Sheet, Icebergs & Penguins [Wildlife Documentary HD]
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4:25
NASA | From the Cockpit: The Best of IceBridge Arctic '13
The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are ...
published: 16 Aug 2013
NASA | From the Cockpit: The Best of IceBridge Arctic '13
NASA | From the Cockpit: The Best of IceBridge Arctic '13
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33:27
Patagonia trip 2016 (HD 1080p)
Visit Patagonia, Patagonia trip, Patagonia tourism, Patagonia tours, Patagonia trip 2016, ...
published: 04 Mar 2016
Patagonia trip 2016 (HD 1080p)
Patagonia trip 2016 (HD 1080p)
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1:59
Beware Antarctic Crevasses
http://icestories.exploratorium.edu Slawek Tulaczyk, a West Antarctic Ice Sheet (WAIS) gla...
published: 27 Feb 2008
Beware Antarctic Crevasses
Beware Antarctic Crevasses
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2:19
Spectacular Ross Sea!
Passengers aboard one of our Ross Sea Journeys will travel along the southern parts of the...
published: 24 Sep 2015
Spectacular Ross Sea!
Spectacular Ross Sea!
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25:24
Cosmic Journeys - Fate of Antarctica
The episode of Cosmic Journeys explores the intersection of paleoclimate and current clima...
published: 22 Jul 2014
Cosmic Journeys - Fate of Antarctica
Cosmic Journeys - Fate of Antarctica
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1:44
Antarctica - Facts and Figures | Mocomi Kids
http://mocomi.com/ presents: Antarctica - the highest, driest, emptiest, coldest place on ...
published: 28 Mar 2013
Antarctica - Facts and Figures | Mocomi Kids
Antarctica - Facts and Figures | Mocomi Kids
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52:30
Documentary "Under the Antarctica" Full HD
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98%...
published: 12 Oct 2016
Documentary "Under the Antarctica" Full HD
Documentary "Under the Antarctica" Full HD
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52:30
Under the Antarctica - Full Documentary HD 2016
Under the Antarctica - Full Documentary HD
The Antarctic ice sheet is one of the two pola...
published: 02 Oct 2016
Under the Antarctica - Full Documentary HD 2016
Under the Antarctica - Full Documentary HD 2016
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1:12
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
A number of studies published in the past year show that the melting of the West Antarctic...
published: 29 Sep 2016
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
Global warming, Antarctic volcanoes: West Antarctic ice sheet collapse likely unstoppable
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2:16
Runaway Glaciers in West Antarctica
Glaciologist Eric Rignot of NASA's Jet Propulsion Laboratory and the University of Califor...
published: 06 Sep 2016
Runaway Glaciers in West Antarctica
Runaway Glaciers in West Antarctica
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2:01
New Life Forms May Lurk Under the Antarctic Ice
Researchers have discovered what may be a giant lake buried beneath the East Antarctic ice...
published: 30 Aug 2016
New Life Forms May Lurk Under the Antarctic Ice
New Life Forms May Lurk Under the Antarctic Ice
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0:16
Pervasive Ice Retreat in West Antarctica
Along the Bellingshausen Sea coast of West Antarctica, ice has been retreating inland bein...
published: 22 Jun 2016
Pervasive Ice Retreat in West Antarctica
Pervasive Ice Retreat in West Antarctica
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87:53
Antarctic Edge: 70° South.Adventure 2015
Antarctic Edge: 70° South (Adventure Film 2015)
In 2014, scientists declared West Antarc...
published: 21 Jun 2016
Antarctic Edge: 70° South.Adventure 2015
Antarctic Edge: 70° South.Adventure 2015
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18:52
Climate Change Trigger Melting of Ice In Antartica
East Antarctica is the world's largest area of ice and, until recently, was thought to be ...
published: 07 Jun 2016
Climate Change Trigger Melting of Ice In Antartica
Climate Change Trigger Melting of Ice In Antartica
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84:33
Antarctic Edge: 70° South.Documentary 2015
Antarctic Edge: 70° South (Documentary Film 2015)
In 2014, scientists declared West Anta...
published: 03 Jun 2016
Antarctic Edge: 70° South.Documentary 2015
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51:43
Antarctic Ice Giant Glaciers (National Geographic Documentary)
The Western Antarctic Ice Sheet (WAIS) is the segment of the continental ice sheet that co...
published: 14 May 2016
Antarctic Ice Giant Glaciers (National Geographic Documentary)
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41:57
AGU 2015: Eric Rignot - Ice Sheet Systems and Sea Level Change (Sea level rise)
Scientific Discipline: Cryosphere
Speaker: Eric Rignot (NASA Jet Propulsion Laboratory)
A...
published: 09 Jan 2016
AGU 2015: Eric Rignot - Ice Sheet Systems and Sea Level Change (Sea level rise)
AGU 2015: Eric Rignot - Ice Sheet Systems and Sea Level Change (Sea level rise)
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95:52
Andy Caffrey's "The Most Important Video on youtube": West Antarctic Collapse
I've started two White House "We the People" petitions. We only get 30 days to collect 100...
published: 02 Jun 2014
Andy Caffrey's "The Most Important Video on youtube": West Antarctic Collapse
Andy Caffrey's "The Most Important Video on youtube": West Antarctic Collapse
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20:56
NASA experts explain ice melt in Antarctica
NASA hosted a media teleconference to discuss new research results on the stability of the...
published: 23 May 2015
NASA experts explain ice melt in Antarctica
NASA experts explain ice melt in Antarctica
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58:32
PolarConnect Event with Yamini Bala and the West Antarctic Ice Sheet Microstructures Expedition
This one hour event is an introduction to the expedition with Yamini Bala and her team. Th...
published: 12 Dec 2014
PolarConnect Event with Yamini Bala and the West Antarctic Ice Sheet Microstructures Expedition
PolarConnect Event with Yamini Bala and the West Antarctic Ice Sheet Microstructures Expedition
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44:45
Earth Under water - Melting ice
Core samples, tide gauge readings, and, most recently, satellite measurements tell us that...
published: 18 Mar 2016
Earth Under water - Melting ice
Earth Under water - Melting ice
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53:17
Under the Antarctic Ice Beauty of The Nature 720p Documentary & Life Discovery HD
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Under the Antarctic Ice Beauty of The Nature 720p Documentary & Life Discovery HD
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52:30
Under The Antarctic Ice (Documentary)
The Antarctic ice sheet is one of the two polar ice caps of the Earth. It covers about 98%...
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Under The Antarctic Ice (Documentary)
Under The Antarctic Ice (Documentary)
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AGU 2015: Eric Rignot - Ice Sheet Systems and Sea ...
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New Bicycle Lock Fights Thieves By Making Them Sick
Edit WorldNews.com 21 Oct 2016
Every year, 1.5 million bicycles are stolen, and it appears that no matter how strong a bike's lock is, a determined thief can break it. But now there might be a new sheriff in town ... entrepreneur Daniel Idzkowski and Swiss-born engineer Yves Perrenoud are behind the project ... So, we turned to chemical compounds that seem like the only real way to disable the thieves without causing anyone permanent harm."...
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American Satellite Finds Likely Landing Spot Of Europe's Schiaparelli Probe
Edit WorldNews.com 21 Oct 2016
It appears an American satellite has found the likely spot where Europe’s Schiaparelli probe hit the surface of Mars on Wednesday, BBC News reported Friday. The Mars Reconnaissance Orbiter (MRO) has identified a large dark patch in the robot's targeted landing zone consistent with a high-velocity impact. Schiaparelli is widely thought to have crashed and been destroyed....
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Mexico Arrests Ex-Chief of Police in City Where 43 Students Disappeared
Edit New York Times 21 Oct 2016
The former chief, Felipe Flores Velázquez, was in charge of the police force in Iguala, where the students vanished in 2014 ... ....
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US Internet Repeatedly Disrupted By Cyberattacks
Edit CBS News 21 Oct 2016
LONDON (AP) — Cyberattacks on a key internet firm repeatedly disrupted the availability of popular websites across the United States Friday, including in Colorado, according to analysts and company officials. Manchester, New Hampshire-based Dyn, Inc. said its server infrastructure was being hit by a distributed denial-of-service attacks, which work by overwhelming targeted machines with junk traffic ... (credit. Thinkstock) ... ....
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Is Reckless Liberalism Forcing Americans to Reconsider Conservatism?
Edit WorldNews.com 21 Oct 2016
Article by WN.com Correspondent Dallas DarlingIt appears Chris Wallace wasn’t the only clear winner in Wednesday night’s long national nightmare between the “nasty woman” and “puppet,” two slurs Hillary Clinton and Donald Trump used against each other during their debate ... Another driving force behind conservatism is the failure of a Democratic and Republican Coalition ... Reflections on Faith, Politics, Spirituality, History, and Peace....
U.S. hopeful it can win Russia's agreement on Antarctic Ocean deal
Edit Reuters 21 Oct 2016
By Ben Gruber PALO ALTO, Calif., Oct 21 (Reuters) - After repeated failed attempts to establish an Antarctic Ocean sanctuary, the United States is hopeful it can sway Russia to agree to a plan that would protect a vast swath of what marine scientists call the most pristine body of water left on Earth. The Commission for the Conservation of Antarctic ......
NERC and NSF jointly support research into fate of Antarctic glacier (NERC - Natural Environment Research Council)
Edit Public Technologies 21 Oct 2016
£20m) in research, and make available additional funding for associated logistical support, to understand a massive Antarctic glacier whose collapse could significantly affect global sea level ... Unlike the Arctic Ocean, where floating ice consists of frozen salt water and melting has no direct effect on sea-level rise, the contribution of freshwater from the Antarctic ice sheet could be enormous....
Tom Hardy to play Antarctic explorer Ernest Shackleton
Edit The Guardian 21 Oct 2016
British actor cast in tale of polar expedition leader who led his crew to safety when their ship was destroyed by ice. @itsalanevans. Tom Hardy is set to star in a new film about Ernest Shackleton, the polar explorer famous for his remarkable escape from the Antarctic continent with all his crew despite losing his ship when it was crushed by ice ... Twitter ... ....
Japan’s resumption of Antarctic ‘scientific whaling’ under the spotlight as key meeting of International Whaling Commission convenes (IFAW - International Fund for Animal Welfare)
Edit Public Technologies 21 Oct 2016
The stage is set for a critical meeting of the IWC next week, with around 80 member countries coming together for their biennial meeting, and the first since Japan resumed scientific whaling in the Southern Ocean despite an earlier landmark judgment from the World Court ruling its Antarctic whaling was illegal and must stop....
Glaciers are melting, and that could mean disaster for towns below
Edit The Washington Post 21 Oct 2016
We all hear about how the glaciers of Greenland and Antarctica are losing ice, and so threatening to raise our sea levels — perhaps quite dramatically ... Related.. This Antarctic glacier is the biggest threat for rising sea levels. The race is on to understand it. Scientists just showed what it truly means when a huge Antarctic glacier is unstable. EPA should have intervened in Flint water crisis months earlier, watchdog says ... ....
Scientists just showed what it truly means when a huge Antarctic glacier is unstable
Edit Albuquerque Journal 21 Oct 2016
The problem is that in this part of West Antarctica, you have everything you don’t want on a warming planet – a changing ocean up against glaciers that are both very wide and very deep. And scientists now know that warm ocean water is reaching these glaciers at depth, and melting them from below – causing them to shrink, leaving the remaining glacier to retreat backwards and inland ... antarctic. ....
Japan's resumption of Antarctic 'scientific whaling' under the spotlight as key meeting of International Whaling ...
Edit PR Newswire 21 Oct 2016Australia joins bid to outlaw large-scale commercial and 'scientific' whaling
Edit The Guardian 21 Oct 2016
@MikeySlezak. email ... Japan told to halt Antarctic whaling by international court. Read more ... “Japan’s unilateral resumption of its so-called ‘scientific’ hunt in the Southern Ocean last year is a slap in the face not just for the International Whaling Commission but also for the rule of law, as the international court of justice clearly ruled Japan’s previous Antarctic ‘research’ program to be illegal.” ... ....
Inside the world's southernmost bar in Antarctica, where BRAS are accepted as payment
Edit The Daily Mail 21 Oct 2016
Located around five miles off the Antarctic Peninsular and 730 miles from the nearest port in South America - Faraday Bar is considered the southernmost drinking hole in the world ... ....
Scientists racing to study threatened glacier
Edit NZ Herald 21 Oct 2016
United States and British science agencies yesterday announced a multi-million dollar research mission to study an enormous and remote Antarctic glacier that is already showing accelerating ice loss and could trigger a major rise... ....
Past Elections Made Trump/Ozone Hole Shrinking/More
Edit WhoWhatWhy 21 Oct 2016
PICKS are stories from many sources, selected by our editors or recommended by our readers because they are important, surprising, troubling, enlightening, inspiring, or amusing. They appear on our site and in our daily newsletter ... It premiers Tuesday ... When the team stayed home from practice in protest of the firing, their entire season was cancelled.Ozone Layer Hole Above Antarctic Actually Shrinking (Milicent) ... Russia and the U.S ... > ....
Editorial: Don’t let Congress block historic climate change deal
Edit Chicago Sun-Times 21 Oct 2016
Follow @csteditorials. Just last weekend, the news was terrific. The United States had negotiated a historic deal with almost 200 other countries to take a dramatic step to slow the dangerous overheating of our planet. But then, in the last few days, the bad news followed ... The anti-science obstructionists threaten to rear their heads again. EDITORIAL. Follow @csteditorials ... A hole in the ozone layer had opened up in the Antarctic ... ....
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