The researchers used underwater microphones aboard buoys to record the ambient noises of a variety
of ice breakups at the Hans Glacier in Norway and synchronized the recordings with time - lapse photos of the glacier (as shown in the video above).
-- There is a discrepancy between the above map showing the retreat
of the ice breakup points and the NASA map over 150 years (7 MB.
Not exact matches
Warm mountain winds are causing extensive winter melting on the surface
of the Larsen C
ice shelf, which could contribute to its
breakup
The full effects
of ice shelf
breakup on glacier demise will not be known for some time.
Scientists still do not know what triggers the
breakup of an
ice shelf or when future ones will occur, so they struggle to estimate how quickly glaciers will dump their
ice into the ocean and therefore how much sea level will rise.
As a result
of such
breakups, more than 150 cubic kilometers
of glacial
ice has slid off land into the ocean.
The region is getting stormier, which threatens settlements, aids ocean mixing that funnels nutrients to deeper waters, and could speed the
breakup of sea
ice.
«Within a few months»
of a
breakup, explains glaciologist Ted Scambos
of the National Snow and
Ice Data Center at the University of Colorado at Boulder, the glacier «accelerates significantly, and within a year or two, it can be moving [toward the ocean] up to four times as fast as it moved when the ice shelf was intact.&raq
Ice Data Center at the University
of Colorado at Boulder, the glacier «accelerates significantly, and within a year or two, it can be moving [toward the ocean] up to four times as fast as it moved when the
ice shelf was intact.&raq
ice shelf was intact.»
The
breakup and melting
of floating
ice has no direct effect on global sea levels.
«There are suggestions in the literature that accelerated
breakup of ice shelves will lead to rise
of sea level by several meters by the end
of the century,» Godin said.
While researchers quickly linked the
breakup to lakes
of meltwater that had accumulated on the so - called Larsen B
ice shelf's upper surface and then wedged apart deep crevasses, they hadn't come up with a convincing explanation for what triggered the collapse.
The consequences
of global sea level rise could be even scarier than the worst - case scenarios predicted by the dominant climate models, which don't fully account for the fast
breakup of ice sheets and glaciers, NASA scientists said today (Aug. 26) at a press briefing.
«My fieldwork with the support
of the InBev - Baillet Latour Fellowship will shed light on which processes are responsible for this
ice shelf
breakup, thereby improving the estimates how, when and where East Antarctica is most vulnerable to global warming.»
Sea
ice extent has dropped precipitously as has the amount
of old
ice, which is less prone to
breakup.
Since IPCC (2001) the cryosphere has undergone significant changes, such as the substantial retreat
of arctic sea
ice, especially in summer; the continued shrinking
of mountain glaciers; the decrease in the extent
of snow cover and seasonally frozen ground, particularly in spring; the earlier
breakup of river and lake
ice; and widespread thinning
of antarctic
ice shelves along the Amundsen Sea coast, indicating increased basal melting due to increased ocean heat fluxes in the cavities below the
ice shelves.
An additional new feature is the increasingly visible fast dynamic response
of ice shelves, for example, the dramatic breakup of the Larsen B Ice Shelf in 2002, and the acceleration of tributary glaciers and ice streams, with possible consequences for the adjacent part of the ice shee
ice shelves, for example, the dramatic
breakup of the Larsen B
Ice Shelf in 2002, and the acceleration of tributary glaciers and ice streams, with possible consequences for the adjacent part of the ice shee
Ice Shelf in 2002, and the acceleration
of tributary glaciers and
ice streams, with possible consequences for the adjacent part of the ice shee
ice streams, with possible consequences for the adjacent part
of the
ice shee
ice sheets.
«My fieldwork with the support
of the InBev - Baillet Latour Fellowship will shed light on which processes are responsible for this
ice shelf
breakup, thereby improving the estimates how, when and where East Antarctica is most vulnerable to global warming» said Lenaerts.
Breakups can send people onto the couch with a bottle
of wine and a pint
of ice cream, staring out the window or at the TV, sobbing themselves into a puddle
of complete despair.
Fortunately, only 6.5 %
of women went the stereotypical route
of gorging on
ice cream and watching chick flicks to get over a
breakup, while 1.0 %
of men admitted to using promiscuous sex, random one night stands and drinking binges to deal with a bad
breakup.
Emma Watson and Robert Pattinson reunited for the first time since Harry Potter And The Goblet
Of Fire in 2005 while presenting together at the Golden When dealing with
breakups, most people drown their feelings — in chocolate,
ice cream, or The Notebook.
One major piece, featured as part
of a trilogy
of shows Yi mounted between 2013 and 2014 that dealt with a
breakup that she described as a «metaphysically violent vivisection,» featured an
ice crystal that slowly melted over the course
of the exhibition.
While filming in the Arctic for his documentary, «Chasing
Ice», filmmaker James Balog captured the
breakup of the Ilulissat...
Breakup of the Larsen B Ice Shelf triggered by chain reaction drainage of supraglacial lakes (pages 5872 — 5876) Alison F. Banwell, Douglas R. MacAyeal and Olga V. Sergienko Article first published online: 27 NOV 2013 DOI: 10.1002 / 2013GL057694 Key Points Larsen B Ice Shelf rapidly broke ‐ up by chain ‐ reaction drainage of surface lakes Lake ‐ induced stress set fracture spacing small enough for capsize ‐ driven breakup Lake interaction by flexural stress defines an ice ‐ shelf stability tipping point (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057694/ab
Breakup of the Larsen B
Ice Shelf triggered by chain reaction drainage of supraglacial lakes (pages 5872 — 5876) Alison F. Banwell, Douglas R. MacAyeal and Olga V. Sergienko Article first published online: 27 NOV 2013 DOI: 10.1002 / 2013GL057694 Key Points Larsen B Ice Shelf rapidly broke ‐ up by chain ‐ reaction drainage of surface lakes Lake ‐ induced stress set fracture spacing small enough for capsize ‐ driven breakup Lake interaction by flexural stress defines an ice ‐ shelf stability tipping point (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057694/abstra
Ice Shelf triggered by chain reaction drainage
of supraglacial lakes (pages 5872 — 5876) Alison F. Banwell, Douglas R. MacAyeal and Olga V. Sergienko Article first published online: 27 NOV 2013 DOI: 10.1002 / 2013GL057694 Key Points Larsen B
Ice Shelf rapidly broke ‐ up by chain ‐ reaction drainage of surface lakes Lake ‐ induced stress set fracture spacing small enough for capsize ‐ driven breakup Lake interaction by flexural stress defines an ice ‐ shelf stability tipping point (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057694/abstra
Ice Shelf rapidly broke ‐ up by chain ‐ reaction drainage
of surface lakes Lake ‐ induced stress set fracture spacing small enough for capsize ‐ driven
breakup Lake interaction by flexural stress defines an ice ‐ shelf stability tipping point (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057694/ab
breakup Lake interaction by flexural stress defines an
ice ‐ shelf stability tipping point (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057694/abstra
ice ‐ shelf stability tipping point (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057694/abstract)
Reports
of the
breakup of Antarctic
ice shelves and other signs
of actual current warming in polar regions begin to affect public opinion.
The possibility
of breakup increases as the
ice shelf thins.
While the
breakup and slipping
of ice sheets is a small part
of sea rise now, he wrote last year, it could easily accelerate under the heating from a «business as usual» path for emissions.
With this unofficial time, this year places 4th earliest for the
breakup of ice in the Tanana river.
Ultimately, there is limited value in debating whether human - driven warming has caused the uncloaking
of any particular Arctic island, the retreat
of a snowfield atop any single mountain — even one as charismatic as Kilimanjaro — or the
breakup of a particular
ice shelf in Antarctica, or any other regional anomaly.
I taught a climate statistics class at the University
of Alaska Fairbanks, Dept.
of Atmospheric Sciences in 2011 (I think) during spring semester and as a class team exercise we «forecast» the Nenana
ice breakup date.
Despite this, if you display those images at 500 meter resolution, you can see where the
ice in the North West Passage is a darker blue, which would indicate some level
of breakup.
Throw in the possibility (weighted, perhaps)
of ice sheet
breakups in greenland and antarctica, and how do our «Scenarios A B and C» look for the FUTURE now?
«in Western Hudson Bay, the decline in population size, condition, and survival
of young as a consequence
of earlier
breakup of the sea
ice brought about by climate warming have all been well documented (Stirling et al., 1999; Gagnon and Gough, 2005; Regehr et al., 2005; I. Stirling and N.J. Lunn, unpub.»
When such events do occur (such as flooding in Bangladesh,
ice shelf
breakups in Antarctica) they occur in remote locations that are far from the concerns
of average Americans, and making the link between these events and individual day to day concerns is very difficult to make.
Aug. 9, 8:30 a.m. Update Andreas Muenchow
of the University
of Delaware is much more cautious than Ohio State's Jason Box about attributing the
ice breakup to recent warming.
The same is true for
ice melting: All glaciers
of Greenland are receding, but the
breakup point
of the largest tidal glacier (near Illulisat) moved faster inland in the 1930 - 1940 period than today.
I believe that what the phrase is trying to get at is either the acceleration relative to the pause in the 1950 - 1970 period, or the acceleration in accumulation
of noticeable consequences — worldwide glacier melt, sea
ice retreat, earlier onset
of springtime, (possibly) increasingly intense hurricanes, Larsen - B
breakup, melting
of Greenland along the margins, etc..
Breakup of an
ice shelf (Larsen) leads to a speedup
of glacier movement: Rignot et al. (2004), Scambos et al. (2004)(who also note lubrication by percolating water, see following note).
This flow
of ice, fed by the continuous formation
of new
ice on land and culminating in the
breakup of the shelves on the outer fringe and the calving
of icebergs, is not new.
Small changes in global sea level or a rise in ocean temperatures could cause a
breakup of the two buttressing
ice shelves.
There has been discussion
of the role
of an August storm in 2012; the storm contributed to
breakup of the sea
ice and perhaps enhanced sea
ice decay.
The main North West Passage
ice will show strong evidence
of breakup and melt by April 30th.
The
breakup of these
ice shelves is a concern, because that would essentially remove the stopper and greatly accelerate the rate at which glacier melt finds its way to the ocean.
We are now (27 March 2011) within the time frame
of my March 02, 2011 predition for the
breakup of the Nares Strait
ice bridge.
In this case the thinning and resultant structural weaknesses preconditioned the
ice to rapid
breakup, which proceeded to lose only the preconditioned portion
of the
ice shelf.
«Even though we don't see immediate evidence
of ice shelf breakup on the Ross Ice Shelf, everything we've seen up to this point has occurred faster than we expect
ice shelf
breakup on the Ross
Ice Shelf, everything we've seen up to this point has occurred faster than we expect
Ice Shelf, everything we've seen up to this point has occurred faster than we expected.
This melange is so weak that a few cloudless days and / or a strong wind towards Baffin Bay will cause a rapid
breakup of the
ice bridge.
The tipping point was 1998, after which the trend has been later
ice breakups, at a rate
of about half
of a day per year.
All
of which indicates 2017 won't be an early sea
ice breakup year for WHB polar bears.
A run
of bad news from the climate scientists might convince a government that the
breakup of the Greenland
ice sheet was accelerating, and that Earth's low - lying areas were facing an imminent rise
of 3 feet or more in sea level.
The Nenana
Ice Classic has interested me, as it is a continuous record since 1917 of the breakup of ice in the Tanana River near Nenana, Alas
Ice Classic has interested me, as it is a continuous record since 1917
of the
breakup of ice in the Tanana River near Nenana, Alas
ice in the Tanana River near Nenana, Alaska.