Sentences with phrase «of ice streams»
Recent satellite and in situ observations of ice streams behind disintegrating ice shelves highlight some rapid reactions of ice sheet systems.
https://www.mediamatters.org/
WAIS collapse may be preceded by the disintegration of ice shelves and the acceleration of ice streams.
Two of the ice streams that flow in the Ross Ice Shelf have slowed, they said, and that area of Antarctica is gaining mass.
These observations are also particularly relevant to the evolution of ice streams and glaciers draining West Antarctica.
The discovery is significant in relation to the mechanism for rapid movement of the ice streams, which are huge, fast - flowing ice currents within the slow - moving ice sheet that covers most of Antarctica.
Terran: An examination of a map of glacier velocity for either the Pine Island presented in this post or of the ice streams feeding the Ross Ice Shelf indicate that most of the ice sheet region is not a fast flow region.
The problem with the paleoclimate ice sheet models is that they do not generally contain the physics of ice streams, effects of surface melt descending through crevasses and lubricating basal flow, or realistic interactions with the ocean.
They state that these changes are a possible sign of a progressive collapse of these ice streams, in response to the high melting of their buttressing ice shelves.
«Radar studies of ice thickness and surface features at the mouths of ice streams D and E, Antarctica,» Antarctic Journal of the United States, XXVII (5) p. 47 - 49.
Shabtaie, S., I.M. Whillans, and C.R. Bentley, The morphology of ice streams A, B, and C, West Antarctica, and their environs, Journal of Geophysical Research (Chapman Conference on Fast Glacier Flow issue), Vol.
New and improved determinations of velocity of ice streams B and C, West Antarctica.
Model experiments on the evolution and stability of ice streams.
The rates at which the grounding lines of the ice streams recede will increase.
«That's the total holy grail right now, to see if we can pin down the response of the ice stream to lakes» filling and draining,» says Helen Fricker of the Scripps Institution of Oceanography in San Diego.
It's a positive feedback cycle, a viscious loop that means that future recession of the ice stream is inevitable (see Marine Ice Sheet Instability and previous post).
Changes in the margin of ice stream C, Antarctica.
Stagnation of ice stream C, West Antarctica by water piracy.
Changes in the configuration of ice stream flow from the West Antarctic Ice Sheet, Journal of Geophysical Research, 101 (B3), p. 5499 - 5504.
Changes in the configuration of ice stream flow from the West Antarctic Ice Sheet.
Retzlaff, R., and C.R. Bentley, Timing of stagnation of ice stream C, West Antarctica from short - pulse - radar studies of buried surface crevasses, Journal of Glaciology, Vol.
Tidal forcing of basal seismicity of ice stream C, West Antarctica seen far inland.
The individual characteristics of each ice stream modulates its recession.
Changes in the configuration of ice stream flow from the West Antarctic ice sheet.
Tidal forcing of basal seismicity of ice stream C, West Antarctica, observed far inland.
Ice dynamics at the mouth of ice stream B, Antarctica, Journal of Geophysical Research, Vol.
Geologic control of the onset of ice streaming: evidence from the West Antarctic Ice Sheet.
Anandakrishnan, S., R.B. Alley, R.W. Jacobel and H. Conway, The flow regime of ice stream C and hypotheses concerning its recent stagnation, in R.B. Alley and R.A. Bindschadler, eds., The West Antarctic Ice Sheet: Behavior and Environment, American Geophysical Union, Antarctic Research Series, v. 77, p. 283 - 296 (2001).
Ice dynamics at the mouth of ice stream B, Antarctica, Jour.
Detailed elevation map of ice stream C using satellite imagery and airborne radar, Annals of Glaciology, Vol.
Transient behavior of ice stream B and Crary Ice Rise, West Antarctica, Ant.
The recently calved iceberg may be 720 km2, but that's the least of this ice stream's worries.
The grounding line of the ice stream retreated rapidly following ice - shelf collapse26.
Most of the deformation in an ice stream is in the bottom portion and thus most of the thickness of the ice stream is just carried along.
Equipped with two cameras and lights, JPL's ice probe revealed what appears to be a basal water system, or series of water channels at the base of the ice stream.
This summer, Jason Box and others at Ohio State University observed that Jakobhavns Isbrae retreated again, losing 15 km2, and maintaining an accelerated pace from the northern branch of the ice stream as opposed to the greater retreat and acceleration of the southern branch 2001 - 2005 (Box, 2008).
Even the more extreme scenarios, featuring basal melting at four times the present rate, did not lead to flotation of the entire 200 - kilometre length of the ice stream, as one earlier study had suggested.
Joughin, I. & Bamber, J. L.,» Thickening of the ice stream catchments feeding the Filchner - Ronne Ice Shelf, Antarctica», Geophysical Research Letters, 32, 2005.
The Pine Island glacier and its neighbour and twin, the Thwaite glacier, are at the outer edge of an ice stream.
Not exact matches
Just as the water can be found in degrees of heat and cold as [again simplified] hot stream, scalding hot liquid, warm liquid and temperate, cold, freezing cold and solid ice, things, people, events and actions are likely to be found in a variety of states and valence.
Shrinking looked they like those who wade through a stream in winter; irresolute like those who are afraid of all around them; grave like a guest (in awe of his host); evanescent like ice that is melting away; unpretentious like wood that has not been fashioned into anything; vacant like a valley, and dull like muddy water.
As melting ice from these glaciers formed streams and rivers along the edge of the glaciers, thick sequences of sand and gravels were deposited.
I do make a steady stream of ice pops during the summer, as they are fast, refreshing, and a lot healthier than purchased frozen treats.
Pour 1/4 cup (60 ml) of ice water in a slow, steady stream, through the feed tube until the dough starts to clump together when pinched (it should not be a solid ball of dough).
To know him you must gird as for war and wade the rivers when they are bitter cold — in sleet - filled gloom, or in freezing blue weather when the leafless alders gleam in pale sunlight along the streams, and ice forms in the guides of your rod.
Ask any average Jane who has recently birthed a child and she'll look at you in the eye and laugh before bursting into an endless stream of tears while telling you between sobs on how she had to swallow and eat cold (literally ice cold) cream of mushroom soups and risottos that shouldn't even see the light of day.
The finding suggests the comet's surrounding cloud of gas and dust may largely be fed by underlying ices, rather than by gas streaming off its surface.
The Zachariae ice stream is about twice the size of Jakobshavn, extending some 373 miles into the interior.
In comparison, it took the Jakobshavn Isbræ ice stream — a southwest Greenland region with a fast - moving glacier that has been a focal point of scientific examination of ice sheet melt — 150 years to retreat 35 kilometers, said Khan.
The data, collected by aerial survey missions flown in the Southern Hemisphere in the summer of 2014 - 2015, provide detailed topography of the perpetually ice - free region, where surprising landscape changes, such as rapid erosion along some streams, have been observed in recent years.
For hundreds of years, the Kaskawulsh Glacier formed a wall that segregates snow and ice meltwater into two streams: the Slims River, which joins with other streams and crosses Alaska before draining into the Bering Sea, and the Kaskawulsh