Sentences with phrase «glaciers flow more»

They note that summer speeds are temporary, with the glacier flowing more slowly over the winter months.

Not exact matches

Some glaciers on the perimeter of West Antarctica are receiving increased heat from deep, warm ocean currents, which melt ice from the grounding line, releasing the brake and causing the glaciers to flow and shed icebergs into the ocean more quickly.
When floating ice shelves disintegrate, they reduce the resistance to glacial flow and thus allow the grounded glaciers they were buttressing to significantly dump more ice into the ocean, raising sea levels.
Snow on the glaciers is melting, causing more water to flow into valley, and this means more water for irrigation.
This means that, even though the glacier is flowing towards the coast and carrying more ice into the ocean, its calving front is actually retreating.
«If that happens, the glacier's flow could be significantly destabilized, causing it to discharge even more ice into the ocean,» he said.
A study published in February also documented changes in the glacier's flow rate, indicating that little - studied ice shelves are starting to get more attention as scientists» understanding of ice and satellite coverage improves.
Alastair notes that increased water vapour will carry more energy to the surface of the glaciers, likewise these increased water flows over, through and under the glaciers is also transferring vast amounts of energy into the ice.
More recent work appears to have found more water flowing into the sea from melting mountain glaciers than earlier thought, making up some of the missing maMore recent work appears to have found more water flowing into the sea from melting mountain glaciers than earlier thought, making up some of the missing mamore water flowing into the sea from melting mountain glaciers than earlier thought, making up some of the missing mass.]
The latter along with increasing glacier melt has led to river flow increases — particularly in China and India which has led to more food production — and unfortunately a large increase in population — and well... a large increase in human suffering in the coming decades.
The margins usually slope more steeply, and most ice is discharged through fast - flowing ice streams or outlet glaciers, in some cases into the sea or into ice shelves floating on the sea.
I am sure you will find a more natural solution of this flow of water from glaciers — estimated not less than 3000 feet thick — in the suggestion first made by Professor James Thomson, and subsequently proved by his brother, Professor W. Thomson, that the freezing point of water is lowered by the effect of pressure 0.23 ° Fahr., or about a quarter of a degree for each additional atmosphere of pressure.
Because Antarctica drains more than 80 percent of its ice sheet through floating ice shelves, accelerated glacier flow has the potential to affect ice sheet mass balance dramatically and raise sea level (Pritchard et al. 2012).
This loss of strength allows the glacier to flow more rapidly or to surge despite relatively small heat fluxes over a brief period.
The additional processes included in the JULES model will provide a more complete picture of water resources of South Asia than previously possible, allowing quantitative analysis of the effects of changes in river flow and glaciers on water resources and the implications of these changes on water availability for irrigation and therefore crop yields.
Satellite images of more than 300 glaciers on the Antarctic Peninsula showed that they were flowing some 12 percent faster in 2003 than they were in 1993 (see an interactive map of Antarctica).
That is why Greenland glaciers are flowing faster, and there are more icebergs breaking off into the Atlantic Ocean.
Since glacial ice deforms like very slow putty, the steepening of the glacier would have caused the more mobile, middle section to flow pick up speed.
More than one - sixth of the world's population live in glacier - or snowmelt - fed river basins and will be affected by the seasonal shift in streamflow, an increase in the ratio of winter to annual flows, and possibly the reduction in low flows caused by decreased glacier extent or snow water storage (high confidence)[3.4.1, 3.4.3].
This circumpolar deep water, which is relatively warm and salty compared to other parts of the Southern Ocean, has warmed and shoaled in recent decades, and can melt ice at the base of glaciers which reduces friction and allows them to flow more freely.
Why do some glaciers surge, that is, accelerate suddenly every few decades, flowing rapidly for a year or two before returning, sometimes suddenly but more often gradually, to normal?
These glaciers are more like a typical alpine glacier and are susceptible to the forces that tend to cause alpine glaciers to experience peak flow during spring and early summer.
The Hindu: As the climate warms, increased melting of glaciers and more rain along the Himalayas is likely to enhance the flow of water into the big rivers that arise in this vast mountain range, according to research just published.
The glacier ebbs and flows each year, as do all glaciers, but each year it also shrinks a little bit more than the previous year.
This means that, even though the glacier is flowing towards the coast and carrying more ice into the ocean, its calving front is actually retreating, stated the press release.
Loss of the Antarctic ice shelves, which extend from the southern polar land mass over the underwater continental shelf, are likely to result in the glaciers behind them flowing more rapidly into [continue reading...]
They are very successful hanging on even in very fast and turbulent water, but appear feed more often in slow to moderately flowing streams on glaciers.
The glaciers that fed into the ice shelf speed up, flowing more quickly out to sea....»
Melting Arctic sea ice, shrinking glaciers, and increased rate of Antarctic ice flow, these are, I think, far more reliable and objective gauges to long - term climate trends than are local temperature measurements.
If the ice shelves were smaller, the glaciers would flow much faster towards the ocean, melting and calving more ice than snowfall inland could replace.
Nowhere is the melting more alarming than in the Himalayas and on the Tibetan plateau where the ice melt from glaciers sustains not only the dry - season flow of the Indus, Ganges, Yangtze, and Yellow rivers but also the irrigation systems that depend on them.
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