Schema-Root.org logo

 

  cross-referenced news and research resources about

 ice shelves

Schema-Root.org logo
images:  google   yahoo YouTube
spacer

updated Thu. March 15, 2018

-
The new research reports that these lakes form intricate networks that are spread out over large swathes of ice shelves and they are getting bigger as the weather warms. Considering the fact that this February, the temperatures were about 50 degrees over the normal winter levels and there is no sunlight ...
Under the ice shelves there are significant tidal currents and the high southerly latitudes pose difficulties for the AUV's underwater navigation. Once in the ice shelf cavity we had neither detailed information on the thickness of the ice, nor the depth of the water. We had no communication with the AUV for ...

But we have also stood on ice shelves that are now open ocean. If the world does nothing, ice sheets will keep shrinking and the losses will accelerate. Even if greenhouse-gas emissions are slashed, which looks unlikely, it would take decades for the climate to stabilize. Is allowing a 'pristine' glacier to ...
"We knew that the environment was harsh, with -20 Celsius [-4 degrees F] air temperatures and sea temperatures very close to the freezing point of seawater," said Steve McPhail, head of AUV Development at the NOC, in a statement. "Under the ice shelves there are significant tidal currents and the high ...
As this map shows, ice loss in western Antarctica is faster and more extensive than in the east, particularly in the Ronne (upper) and Ross (lower) ice shelves. The data underlying this map that depicts recent Antarctic ice flow are from a 13 February study published in The Cryosphere. However, the map ...

If more warm salty water is reaching the bottom of the ice shelves than in previous years, this could fuel an increase in ice-shelf melt. Dr Laura Herraiz Borreguero of ... 'If we lose (the ice shelves), the speed of the glaciers could be four to five times faster,' said Dr Herraiz Borreguero. Her next challenge is to ...
Ice shelves are constantly changing, internally and externally. Although the process is not yet perfectly understood, it's suspected that lower layers are somewhat melted due to warm oceanic waters flowing towards and chipping away at them. This process, one of many, contributes to the instability of ice ...
It is stabilized, at least for the time being, by a phalanx of floating ice shelves, that hang off its outer edges--of which the Ross Ice Shelf is by far the largest. Those floating shelves provide a buttress; they "are holding back a very big amount of ice," says Craig Stevens, an oceanographer from the National ...
But unlike other Antarctic ice shelves such as Larsen C, which recently calved a 1-trillion-metric-ton iceberg, the Ross Ice Shelf's mass has remained roughly constant over the last several decades, even in the face of rising global temperatures. Now, researchers have dug into this mystery by drilling over ...
The Arctic melt pond shown in the photograph above is a sign of much greater changes afoot in the frozen north. Over the past decade, the amount of material in the central Arctic Ocean that comes from ice shelves - such as nutrients, carbon, trace metals, and radium - has greatly increased. This increase ...
Massive ice shelves have formed in just a few days and they're incredibly dangerous." Although her facebook post has now reached about 90,000 views and over a thousand shares, Jackson said she met with municipal staff yesterday to request signs be posted at the beach warning about the ice shelf ...
"There are so many people out on these shelves right now -- entire families with their dogs -- looking at how amazing [the ice shelves] are, and its really frightening to see them there." She's warning people to stay off the ice shelves that could easily swallow someone under water, with frigid temperatures ...
It has become increasingly common to see cliff-sized chunks of glacial ice falling into the Southern Ocean, suggestive of a warming climate. But scientists don't know what's going on beneath Antarctica's ice sheets., so they are preparing to find out.
Although the research team is confident that their instruments will send data from the ice shelf, as Craig Lee acknowledges, they're also realistic about the real danger that they might not recover the gliders and floats. "As you can imagine, going under the ice shelves is so risky that we don't do it with people ...
ice shelves act as buttresses that restrain the flow of inland ice into the sea, which under a warmer climate could trigger many feet of global sea level rise, on a timeline that is largely unknown. Observations in the water-filled caves under ice shelves could help explain how warmer seawater interacts with the ...
Paul G. Allen Philanthropies put up $1.8 million for the Antarctic field test to see if the robots can navigate the treacherous interface where ice shelves and ocean meet, gather data, and transmit it back to Seattle. If the probes pass muster, fleets of the relatively inexpensive instruments could be deployed in ...

San Francisco, Jan. 9 (Xinhua) -- U.S. scientists have found that strong El Nino events can cause remarkable ice loss in some Antarctic ice shelves while the opposite may occur during strong La Nina events, a new study revealed Monday. The study, published in the journal Nature Geoscience, ...
Floating ice, like the kind that covers the Arctic Ocean in wintertime and comprises ice shelves, doesn't raise sea levels. (Think of a melting ice ...
Antarctica is surrounded by ice shelves, which are thick bands of ice that extend from the ice sheet and float on the coastal waters. They play an ...
They suggested disintegration of ice shelves caused by global warming could leave behind coastal ice cliffs so tall they would be unstable, ...
NASA scientists have captured close-up images of a behemoth iceberg that in July detached from one of the largest floating ice shelves in ...
scientists get robots ready to study Antarctic ice shelves from below, with ... to study Antarctica's ice shelves from the ocean below, with backing ...
The powerful images of climate change, the catastrophic scenes of ice shelves collapsing and the rare fresh water lake system they leave ...
ice shelves are crucial stabilizing components of glaciers--but as they melt and become thinner, they become more likely to break and release ...
When the glaciers reach the ocean, they become massive floating ice shelves that slow the ocean-bound flow. The system was relatively stable ...
The situation, he added, is probably part of the normal calving processes that occur at the edges of ice shelves. "We don't believe that this is ...
Other glaciers in the area are getting thinner, and their floating extensions, the ice shelves, are thawing from beneath and losing hold of their ...
Today, as warming waters caused by climate change flow underneath the floating ice shelves in Pine Island Bay, the Antarctic Ice Sheet is once ...
ice shelves floating on water are the oceanic extension of land glaciers and ice sheets, and the primary region for ice loss. As these shelves ...
A mysterious world of upside-down canyons crisscrosses the underbelly of Antarctica's ice shelves. Now, research finds that some of these ...
Floating ice, like the kind that covers the Arctic Ocean in wintertime and comprises ice shelves, doesn't raise sea levels. (Think of a melting ice ...
The seafloor beneath Antarctica's ice shelves is usually in complete darkness and lacks most of the "marine snow" of phytoplankton and other ...
Harvey and Irma have captured more attention in days than slow species extinction and collapsing ice shelves have in years. In Frost's poem ...
He also forecasted that Arctic ice shelves would melt leading to that increase. He didn't take into consideration the Antarctic ice would expand ...
Experts said there was no hard proof climate change was to blame for the latest fracture, but warmer ocean temperatures could put ice shelves ...
It will also provide greater understanding on the impact climate change is having on polar ice shelves, although the breaking away of A68 - in ...
Air temperatures above the peninsula have increased 4.5 degrees Fahrenheit since 1950, and the floating ice shelves that fringe it have shrunk substantially.
... in place by these floating ice shelves. They're starting to crack and break loose. That then, is like taking the cork out of the champagne bottle, ...
The Larsen C ice shelf is on the Antarctic Peninsula, which has lost several ice shelves in the last few decades. Nearby ex-ice shelves Larsen A ...
"ice shelves are important in projecting what the AntArctic ice sheet might do in a warming world. And while this Arctic ice-shelf question is not ...
... trek was something of a physical challenge for one who is used to snow scootering around flat ice shelves just a few meters above sea level.
That's understandable: As their ice shelves collapse and unleash the landlocked ice into the sea, the oceans rise, cities fall into it, and ...
Icebergs are a majestic sight, drifting along in the oceans after breaking off from glaciers or ice shelves. Yet, they could also be harbingers of ...
Such intrusions have been linked to the melting of ice shelves. For a detailed look at what controls the upwelling, the researchers turned to ...
As a rule of thumb, she explains, the ice tends to break where it is thinner than 200 metres; in reality, however, there are also many ice shelves ...
"As long as snow continues to fall on Antarctica," writes Spencer, "glaciers and ice shelves will continue to slowly flow downhill to the sea and ...
ice shelves, like icebergs, are mainly below the waterline. This means that the majority of the shelf is not visible to the unaided eye. Ten years ...
Typically, ice shelves lose mass by melting at their upper and lower surfaces and iceberg calving, which is when chunks of ice break away from ...
... caused the break, it is an undeniable wakeup call to a potential future of rapidly collapsing ice shelves that precede sharp rises in sea levels.


 

news and opinion


 


 


 


 


schema-root.org

   landforms
     ice shelves

cross-references for
ice shelves:

ice shelves