Sentences with phrase «by glaciers which»

Many streams in Lo are not fed by glaciers which have the most dependable water resources.

The terrain is fairly jagged, with many gullies and streams fed by glaciers which eventually pour into the Urubamba river, which crosses the area forming a deep valley which runs through the granite base of Vilcabamba for more than 40 km through a variety of eco-systems.

Not exact matches

Icelandic banks played the carry trade too, and foreign banks followed suit by creating «glacier bonds,» which were repackaged Icelandic bonds sold to investors outside the country.

By capturing the glacier, India violated the Simla agreement, which had specifically stated: «Neither side shall seek to alter it [Line of Control] unilaterally irrespective of mutual differences and legal interpretations.

Inch by inch the huge river of ice which we call a glacier creeps toward the sea, and here its projecting end is broken off by the action of the waves.

When that glacier recedes, it leaves a basin, enclosed by the moraine and remaining glacial ice, which fills with meltwater.

A study published in 2011 by Scambos, Truffer and Pettit found that one glacier continues to accelerate even 15 years after losing its ice shelf: Röhss Glacier (which used to flow into the Prince Gustav ice shelf) has now reached nine times its former speed.

During ice ages, which are mainly driven by rhythmic variations in Earth's orbit and spin that alter sunlight in the Northern Hemisphere, growing ice caps and glaciers trap so much frozen water on land that sea levels can drop a hundred meters or more.

These rapidly - moving glaciers protect Antarctic ice from erosion by ocean waters, which otherwise would raise worldwide sea levels by some 50 feet.

Thousands of marks on the Antarctic seafloor, caused by icebergs which broke free from glaciers more than ten thousand years ago, show how part of the Antarctic Ice Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstable.

Much of the dust deposit east of the Rockies arrived in the last ice age, which ended some 11,000 years ago, when particles that had been ground up and transported by glaciers were deposited by meltwater streams.

The glacier ice found by the team, which came from a layer that began just 50 centimetres below the surface, was dated by analysing the relative abundances of isotopes of argon in a thin layer of overlying volcanic ash.

Balancing boulders on Earth are either deposited by glaciers or carved by wind and water erosion — none of which exist on a comet.

This is because the campaign's seafloor survey revealed features under the ocean, such as troughs cut by glaciers during the last ice age, which must continue upstream under the glacial ice.

To ascertain the age of the boulders strewn by the glaciers and thus come up with a date when glaciers were at their greatest extent, Willenbring and colleagues used a technique known as cosmogenic nuclide exposure dating, which measures the chemical residue of supernova explosions.

He says previous predictive models of Greenland's ice loss did not adequately take into account the faster movement of its southern glaciers, which is accelerating the amount of ice entering the ocean: «Greenland is probably going to contribute more to sea level rise, and faster than predicted by these models.»

These valleys are characterized by harsh katabatic winds, glaciers, sandy surroundings, and permanent ice - covered lakes, which harbour the most exceptional life - in - ice - forms I have ever seen.

By tracking changes in crevasses on the glaciers» surfaces, they calculated the speed at which the ice slabs were moving.

MELT ZONE The Totten ice shelf (shown here) holds back a massive glacier, which drains a France - sized portion of East Antarctica and could raise sea levels by at least 3.5 meters if it slides into the sea.

Thus, while England's native flora was largely scraped away by glaciers, in the Hengduans a variety of plants flourished — including angiosperms, such as the Magnoliaceae and Ranunculaceae, which originated in the Cretaceous Period.

The fourth tipping point is Greenland's glaciers, which hold enough water to cause sea levels to rise by more than twenty feet.

Additional precision in this study was provided by NASA's Gravity Recovery and Climate Experiment, or GRACE satellites, which can make detailed measurements of gravity and, as one result, estimate the mass of glaciers they are flying over.

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.

On the other hand, if the ice shell is sufficiently thick, the less intense interior heat can be transferred to warmer ice at the bottom of the shell, with additional heat generated by tidal flexing of the warmer ice which can slowly rise and flow as do glaciers do on Earth; this slow but steady motion may also disrupt the extremely cold, brittle ice at the surface to produce the chaos regions.

While the Alps could lose anything between 75 percent and 90 percent of their glacial ice by the end of the century, Greenland's glaciers — which have the potential to raise global sea levels by up to 20 feet — are expected to melt faster as their exposure to warm ocean water increases.

It is dissected by several gullies, cut into the unconsolidated sand by streams (melting from the glacier surface is encouraged by the accumulation of dark wind - blown sand, which absorbs solar radiation)[17].

Estimates from the study indicate that the freezing line could lift by as much as 3,900 feet by 2100, which could expose the majority of glaciers in the region to temperatures above 32 °F in warm - weather months.

Pine Island Glacier is buttressed by a large, floating ice shelf, which helps to stabilise the glacier, but this ice shelf is itself thinning and recently calved a huge iceberg.

One of the most famous sets of images, of course, is the Argentiere glacier at Chamonix which was first used by Le Roy Ladurie in the 1960's to demonstrate the changes in the modern period.

A study published in the Annals of Glaciology last month adds to the pile of crap news about how these glaciers, which extend out over water that's being warmed by climate change, are susceptible to melting...

A study published in the Annals of Glaciology last month adds to the pile of crap news about how these glaciers, which extend out over water that's being warmed by climate change, are susceptible to melting that could screw the world's coasts.

More specifically, using digital scans of paper maps based on aerial imagery acquired by the U.S. Geological Survey, along with modern - day satellite imagery from a variety of platforms, the authors digitized a total of 49 maps and images from which they calculated changes in the terminus positions, ice speed, calving rates and ice front advance and retreat rates from 34 glaciers in this region over the period 1955 - 2015.

A documentary chronicling a 700 - person trek across the Himalayas to call attention to the plight of the largest store of glaciers outside the polar ice caps, which are threatened by climate change.

The biggest challenge of the day was to escape from our three minders to get our action shots — a task which was not helped by the fact that putting the right foot down long and hard would stack the valley to the glacier tips with decibels.

In the southern reaches of Patagonia is the breathtakingly beautiful Parque Nacional Torres del Paine, which is dominated by rugged mountain peaks, deep fjords and channels teeming with penguins, and enormous ice fields flanked by brilliant blue glaciers.

You can hike the fastest moving glacier in the world, Franz Josef, which is rated in the top three activities by Kiwi Experience passengers.

The Cradle Mountain Huts Walk by Tasmanian Walking Company offers a 65 kilometre (40 mile), six - day walk in which you'll wander through ancient rainforests, alpine meadows and button grass plains once covered by glaciers.

In a kaleidoscopic movement of acoustic universes, visual projections, props and instruments brought to life by Joan Jonas, the performance retraces the source of the work — Under the Glacier (1968), by the writer Halldór Laxness — which narrates tales of glaciers and miraculous aspects of the natural world.

Hartley's most prominent project, Nowhere Island (2012), saw a vision come to life after an arctic expedition in which a newly formed island had been created by a retreating glacier and was tugged to the British coast.

Sean Kelly brought this five - panel image of the Perito Moreno glacier by Frank Theil, which had already been sold by the time we arrived.

Sporting a new entrance conceived by experimental Brooklyn designers The Principals to resemble glaciers adrift at sea, the fair mixes up its presentation of returning design stalwarts (Friedman Benda, R & Company) with art galleries like 99 cents Plus, which is presenting «The Lamp Show,» and Bryce Wolkowitz Gallery, which is exhibiting a collection of new media works.

The physical processes by which energy might be added into the glacier material include: (A) convection between the glacier surfaces and local surrounding atmosphere and water, (B) direct radiation onto the exposed surfaces of the material, (C) addition of material that is at a temperature higher than the melting temperature onto the top of the glacier (rain, say), (D) Sublimation of the ice directly into the atmosphere, and (E) conduction into the material from the contact areas between the glacier and surrounding solid material.

A typical example is the Kilimanjaro glacier, where the shrinking is largely due to dryer air, caused in part by deforestation at the foot, in part also by general faster air circulation, which dried the upper air in the tropics.

Which leads me to another question — the melting glacial / Greenland / Antarctic ice water is depleted in CO2 (check out the bubbles in your ice cubes)-- how much additional CO2 is being sequestered by this runoff into the oceans, and what happens to CO2 increase when we run out of glaciers?

... the confusion came most likely from a confusion in definitions of what is the permanent ice sheet, and what are glaciers, with the «glaciers» being either dropped from the Atlas entirely or colored brown (instead of white)... there is simply no measure — neither thickness nor areal extent — by which Greenland can be said to have lost 15 % of its ice.

It's not the last word, as Gavin notes, but further refinements (which could be higher or lower than 2m by 2100) await more science at both GIS and WAIS, glacier physics, and more comprehensive glacier modeling, which simply requires more time.

Could anything be more out of date, backward - looking, or antiquated in spirit than the Carlin report's repackaging of yesterday's denialist illusions and pseudoscientific nonsense about climate — fantasies that have been shot down time and again, that don't have a melting Greenland glacier's chance in a warming climate when exposed to the light of reason, yet which have been presented to the world as if they were a brilliant refutation of the CO2 - global warming link by the sharpest analytical minds in the field of climatological research?

«If, as the glacier recedes up the trough, it is able to maintain the peak speeds year round, then a sustained speedup by a factor of 4 of 5 is conceivable based on recent behavior, which is about half of the ad hoc tenfold upper limit on speed proposed by Pfeffer et al. (2008).

With green features in its construction and even greener intentions, it's a great addition to the tourism circuit in the very popular southern area of the country.Located at 5 kilometers from El Calafate and surrounded by The Glaciers National Park, Glaciarium attempts to add some extra meaning to the amazing natural beauty that surrounds it: the park in which it's located is around 4,500 sq kilometers and comprises 47 glaciers, the largest ice cap outside Antarctica and GrGlaciers National Park, Glaciarium attempts to add some extra meaning to the amazing natural beauty that surrounds it: the park in which it's located is around 4,500 sq kilometers and comprises 47 glaciers, the largest ice cap outside Antarctica and Grglaciers, the largest ice cap outside Antarctica and Greenland.

Glaciers on the southern slopes of the mountains, which lie within Nepal, have shrunk by a quarter since the 1980s.