Sentences with phrase «under glaciers in»

Such shapes form when gas bubbles expand in molten rock that then catastrophically explodes — a feature of violent eruptions involving water, and which can be seen under glaciers in Iceland, for example, researchers said.

A study in the journal Science shows that microbes have long survived under glaciers in Antarctica making do with nothing but sulfates and iron from the bedrock.

Such shapes form when gas bubbles expand in molten rock that then catastrophically explodes — a feature of violent eruptions involving water, and which can be seen under glaciers in Iceland, for example.

She has ducked under a glacier in Switzerland and poked hot lava with a stick in Hawaii.

Not exact matches

Just over 1 % of our planet's glaciers — some 2300 in all — are known to undergo these precipitous movements, though the number is likely to rise as glaciers come under closer surveillance by remote sensing.

Specifically, the paper found that the same water that has been measured in the fjord is under the glacier, lending credence to the idea that the continuity of the glacier depends on the conditions outside the glacier in the fjord.

Bárðarbunga is located beneath the giant Vatnajökull glacier in the center of the island; this particular eruption is occurring under a northern offshoot, the Dyngjujökull glacier.

In New Zealand, wood has been found under glacial debris dating to the Younger Dryas, suggesting that glaciers responded to the event by growing.

Iceland's Bárðarbunga volcano, buried under the giant Vatnajökull glacier, has been holding scientists in suspense over the last 2 weeks, producing frequent seismic rumbles but no signs yet of an actual eruption.

In contrast to glaciers and ice sheets, which sit on the ground, ground ice sits in the ground, mixed with frozen soil or buried under layers of sedimenIn contrast to glaciers and ice sheets, which sit on the ground, ground ice sits in the ground, mixed with frozen soil or buried under layers of sedimenin the ground, mixed with frozen soil or buried under layers of sediment.

Also in the mid-1990s, another group of scientists proposed the now widely accepted mechanism for how lakes can form under glaciers: Heat radiating from Earth's interior is trapped under the thick, insulating ice sheet, and pressure from the weight of all the ice above it lowers the melting point of the ice at the bottom.

The glacier is currently experiencing significant acceleration, thinning and retreat that is thought to be caused by «ocean - driven» melting; an increase in warm ocean water finding its way under the ice shelf.

In the first paper, UCI's Morlighem used the OMG surveys to improve maps of the bedrock under some of the West Coast glaciers.

For Mars, this meant a thin carbon dioxide atmosphere with what little water remained trapped in frozen lakebed glaciers buried under oxidized iron soil, or in seasonal floes of brine mixed with trace amounts of water.

Bardarbunga is Iceland's largest volcanic system, located under the ice cap of the Vatnajokull glacier in the southwest of Iceland.

While the vast majority of glaciers are now in retreat, a few down under have been growing and shrinking like a bunch of yo - yo dieters.

Hensch said the biggest risk in Iceland itself was from flood waves from any eruption under the glacier.

When salt is buried under heavier rocks, it rises buoyantly in vast sheets and fingers; it may even fountain aboveground and flow like a glacier.

Now, Bindschadler and other researchers are heading out to fetch some of the first temperature data from under the Pine Island Glacier ice shelf, the outlet of one of the largest and fastest moving glaciers in Antarctica, in hopes of understanding what is happening beneath it.

The problem, according to NASA scientists, in West Antarctica, they haven't found any under - glacier mountain or ridge to stop glaciers there from pouring into the sea.

These glaciers typically move via basal sliding or subglacial deformation under wet (warm)- based ice in the accumulation area, but only by internal ice deformation in the colder parts.

They found signs that ocean water is pushing miles deeper under the ice than we realized in near a location where both glaciers meet, raising some uncomfortable prospects about how their futures could be intertwined.

You'll get the PS4 Slim 500 GB in glacier white, a dualshock wireless controller and a game for under # 230 with this great bundle.

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.

Other factors would include: — albedo shifts (both from ice > water, and from increased biological activity, and from edge melt revealing more land, and from more old dust coming to the surface...); — direct effect of CO2 on ice (the former weakens the latter); — increasing, and increasingly warm, rain fall on ice; — «stuck» weather systems bringing more and more warm tropical air ever further toward the poles; — melting of sea ice shelf increasing mobility of glaciers; — sea water getting under parts of the ice sheets where the base is below sea level; — melt water lubricating the ice sheet base; — changes in ocean currents -LRB-?)

The estimates are quite variable because of the difficulty in measuring these things in a difficult part of the world and the complexity of the processes (ice berg calving; under ice shelve melting, snow blowing, under glacier melt etc.).

... 555 of all the 625 glaciers under observation by the World Glacier Monitoring Service in Zurich, Switzerland, have been growing since 1980.»

From my perspective the interesting item you raise with both the Zwally and Jakobshavn effects is the persistent increase in the volume of water moving under, over and through these glaciers.

IPCC AR4 WG1 SPM says (under «Fresh water resources and their management» of «C. Current knowledge about future impacts») In the course of the century, water suppries stored in glaciers and snow cover are projected to decline, reducing water availability in regions supplied by meltwater from major mountain ranges, where more than one - sixth of the world population currently liveIn the course of the century, water suppries stored in glaciers and snow cover are projected to decline, reducing water availability in regions supplied by meltwater from major mountain ranges, where more than one - sixth of the world population currently livein glaciers and snow cover are projected to decline, reducing water availability in regions supplied by meltwater from major mountain ranges, where more than one - sixth of the world population currently livein regions supplied by meltwater from major mountain ranges, where more than one - sixth of the world population currently lives.

in a SciAm Item for the fact that a series of under - the - icesheet Volcanoes were causing the emmisions of large quantities of water from under the edge of the glaciers, where they meet the sea, and the fact that these eruptions were causing rapid advances in the sheets march toward the sea.

Contrary to the claim by Rose that «Hayley Fowler of Newcastle University, suggested that their draft did not mention that Himalayan glaciers in the Karakoram range are growing rapidly,» the Asia Chapter does include this finding under section 10.2.4.2 on page 477.

Equivalently, while the increase in terminus speed and the glaciers overall maximum speed may remain under a factor of five, as the terminus retreats farther inland where the speeds now are comparatively slow, the relative speedup is much greater (e.g., if the terminus retreated to M26 with a speed of 16 000 m yr − 1, this would represent a twelve-fold speedup).

As glaciers in the Himalayas melt faster due to global warming, pollutants buried under them are finding their way down to the north Indian plains.

And there I say that the mark in stone or the carbon - dated tree stump from under the glacier trumps the model simulation every time, because these are empirical data while the model simulation is not.

Warm ocean water plays a significant role in melting glacial ice from below, and a better mapping of Antarctica's and Greenland's landforms beneath the ice suggests that ocean melting of the glacier fronts may play a more significant role than previously thought as the ice sheets retreat (under a global warming scenario).

Shifting currents, increased freshwater input from melting sea ice and glaciers, and changes in upper and lower sea - level circulation patterns are already occurring, and they'll progress rapidly if anthropogenic greenhouse gas emission continues under a business - as - usual scenario.

The source document, the Intergovernmental Panel on Climate Change (IPCC) 2007 Fourth Assessment Report (AR4), has been under harsh scrutiny over the past weeks for a number of blunders, including the Climategate scandal, bogus claims about Himalayan glacier melt, false assertions The Netherlands are drowning, deceptive hysteria over conditions in the Amazon, exaggerations of vanishing polar ice caps, and fraudulent cover - up of Chinese temperature data.

It could take decades or centuries, but change will be locked in by a 3C temperature rise, which would extensively melt ice caps, shrink glaciers and thermally expand the oceans so many current coastlines and low - lying plains would be under sea level.

A geophysicist in Iceland warned the chaos caused by ash drifting from the volcano under the Eyjafjallajokull glacier about 75 miles east of Reykjavik could cause trouble for days or weeks.

Then there is actual physical evidence: carbon - dated remains of trees (or even signs of earlier civilization) recovered under receding glaciers high above today's tree line, Viking farms buried in the Greenland permafrost, etc..

The best data of all, of course, are provided by actual physical evidence: carbon - dated remains of trees or signs of past civilization under receding glaciers, farm houses buried in permafrost, etc..

In Switzerland, 84 out of 85 glaciers under observation became shorter in 2006 (WGMS, 2008In Switzerland, 84 out of 85 glaciers under observation became shorter in 2006 (WGMS, 2008in 2006 (WGMS, 2008).

«If we compare the rate that these glaciers have retreated in the last hundred years to the rate that they retreated when they disappeared between 8,000 and 7,000 years ago, we see the rate of retreat in the last 100 years was about twice what it was under this naturally forced disappearance,» D'Andrea said.

Just wanting to point out the link under «Many of the Himalayan Glaciers are retreating» in the 2nd from last paragraph no longer goes anywhere.

Mountainous areas will face glacier retreat, reduced snow cover and winter tourism, and extensive species losses (in some areas up to 60 % under high emission scenarios by 2080).

For me, the most convincing actual physical evidence (living in Switzerland) is carbon - dated remains of old trees found under receding glaciers at altitudes far above today's tree - line.

Rajendra Pachauri, chairman of the UN's Intergovernmental Panel on Climate Change since 2002, has been under fire on two fronts: a glaring error in the body's reporting on glaciers and his business dealings.

Tree stumps and even human artefacts have been discovered under NATURALLY RETREATING glaciers as the climate WARMS NATURALLY from the coldest period in 10,000 years.

Sure, there was warming and glaciers are receding, but the logical leap that this warming is because of humans is simply an unsubstantiated claim, even more so when considering that you can find Roman remains under receded glaciers in the Alps or Viking graves in thawed permafrost in Greenland.

Sadly, many new studies on the rate of glacier destabilization in Antarctica and Greenland hint that such a significant jump in sea level is not only likely, but may even be significantly exceeded under business as usual or even a moderately curtailed rate of fossil fuel burning.