Sentences with phrase «melted ice on its surface»

Salt alternatives containing the active ingredient acetamide or crystalline amide are less caustic than those with calcium chloride and are a good choice if you have dogs and need to melt ice on surfaces where the dog walks.

Not exact matches

Salt lowers the melting point of ice (and we might investigate this process later on), but by doing so it means that the surface of the can is actually below freezing point.

It can be used as a concrete safe ice melt because it «lingers» on the surface it's applied to.

Warm mountain winds are causing extensive winter melting on the surface of the Larsen C ice shelf, which could contribute to its breakup

And when they land on Greenland's snow and ice, their ability to absorb heat from sunlight increases surface melting.

On Pluto, a slurry of nitrogen and water ice melted by subsurface heat stands in for lava, the team suggests, freezing solid once it is exposed at the surface.

This allowed them to calculate the redistribution of mass on Earth's surface due to the melting of the Greenland and Antarctic ice sheets and mountain glaciers, and model the shift in Earth's axis.

increasing air temperatures on the Antarctic Peninsula, which can enhance surface melting of ice shelves,

Using computer modeling to interpret images from NASA's Galileo satellite, Pappalardo and Barr demonstrated that acnelike markings on Europa's surface are probably bits of ice containing minerals such as chloride salts and sulfuric acid, which lower the melting point so the material can rise from deep below.

But last year, Arrigo and his team noted a proliferation of pools of water, known as melt ponds, on the surface of the Chukchi Sea ice, which were also a few meters thinner than in past years.

Untersee is a good model for Mars, he says, because it is supplied by subglacial melt — water that accumulates at the bottom of an ice pile — rather than from surface melting, which does not occur on Mars.

Box pointed to nearly ice - sheet - wide melting on Greenland, with extensive surface melting documented for first time at the highest elevations of ice sheet, and the longest melt season since satellite observations began in 1979.

But the water's source — whether melting ice, rainfall, or groundwater — and its duration on the surface are still open questions.

The data allowed them to calculate the redistribution of mass on Earth's surface due to the melting of the Greenland and Antarctic ice sheets and mountain glaciers, and the resulting rise in sea level.

David Ullman, a postdoctoral researcher at Oregon State University and lead author on the study, said there are two mechanisms through which ice sheets diminish — dynamically, from the jettisoning of icebergs at the fringes, or by a negative «surface mass balance,» which compares the amount of snow accumulation relative to melting.

Now a weather station, installed on the Larsen C ice shelf in 2015, has revealed that a quarter of surface melting occurs in the winter because of föhn winds, Peter Kuipers Munneke of Utrecht University in the Netherlands told a meeting of the European Geosciences Union in Vienna last week.

Unlike «snow ice,» which forms when melting snow refreezes on an existing ice surface, congelation ice contains very few bubbles.

«If ice caps and glaciers were to continue to crack and break into pieces, [the amount of] their surface area that is exposed to air would be significantly increased, which could lead to accelerated melting and much - reduced coverage area on the Earth,» Buehler said in a statement.

Signs of repeated ice - and snow - melt in a mid-latitude gully may point to the most recent water activity on the Red Planet's surface

But DeConto says that Hindmarsh's work predicts future ice loss based on what's happened so far, and doesn't take into account processes like ice surface melt that haven't kicked in yet.

Kattenhorn and Prockter saw ice volcanoes on the overriding plate, possibly formed through melting and absorption of the slab as it dove below the surface, and a lack of mountains at the subduction zone, implying material was pushed into the interior rather than crumpled up as the two plates mashed against each other.

Still, surface melting has increasingly been observed on the West Antarctic ice shelves (see here).

All these observations will be combined to improve climate models, which will provide an estimate of present - day and future surface melt on the East Antarctic ice shelves.

To that end, they will observe the weather on these ice shelves, measure the amount of surface melt from the ground and from satellites, and analyse how snow characteristics change in response to melt.

And on July 11 - 12 last year, gusts of warm air caused melting on virtually the entire surface of the ice sheet.

His project is expected to provide important insights into how surface melt affects ice shelves, and provide data for improving climate models in order to provide an estimate of present - day and future surface melt on the East Antarctic ice shelves.

Increased atmospheric temperatures lead to surface melting and ponding on the ice surface.

Supraglacial (surface) water on a glacier is formed by the ice melting during the summer.

Recent summers on the vast, white expanse of the Greenland ice sheet have featured some spectacular ice melt, including an alarming period in 2012 when nearly the whole surface showed signs of melt.

Unlike the great ice sheet of Antarctica, the Greenland ice sheet is melting both on its surface and also at outlet glaciers that drain the ice sheet's mass through deep fjords, where these glaciers extend out into the ocean and often terminate in dynamic calving fronts, giving up gigaton - sized icebergs at times.

And summer is prime melt season, when the sun's rays beat down on the ice, causing meltwater to pool on the surface and drain down through the ice sheet and out to sea.

Buy «Outdoor Ice Mats» products like CoolDog ™ Pet Ice Mat, Liora Manne Frontporch Ice Skates and Kittens 1 - Foot 8 - Inch x 2 - Foot 6 - Inch Indoor / Outdoor Mat, Cozy Ice - Away Snow Melting Mat, Bungalow Flooring Surfaces Fun on the Pond 23 - Inch x 36 - Inch Kitchen Floormat

The first is a patented outer layer that liquefies on contact and rapidly melts the ice surface.

Trees, flowers, clay, fruit, ice, sugar, and chocolate have all appeared as regular protagonists in her work, including a carpet of 10,000 flowers left to wilt on a museum floor; a room whose walls the artist painted in chocolate and then invited viewers to lick its sweet but precarious surfaces; and a thirty - two - ton minimalist grid of ice cubes melting in a nineteenth - century water pumping station in east London.

Richard B. Alley, an expert on Greenland's ice sheet at Penn State, told me it's still possible that flows of meltwater from surface lakes could start large areas of ice moving seaward, particularly if the melt zones continue to expand inland as they have been doing for years now.

I think the runaway methane release suggested by some is not likely as long as there is plenty of ice on Greenland / EAIS as their melting will keep the ocean surfaces cool enough.

But it is on the eastern Peninsula that the most rapid summer warming has occurred, and where the surface - melting has caused ice shelf collapse (indeed, James Ross Island wasn't really an island until 1995, when the Prince Gustav ice shelf collapsed).

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-?)

There is already strong evidence that anthropogenic forcing has played a significant role in the collapse of ice shelves on the Antarctic Peninsula, cause by significant melting at the surface during summer.

However, there is both theoretical and observational evidence that melting now occurs on the horizontal surfaces of the Kilimanjaro Northern Ice Field, and contributes to ablation [Moelg and Hardy 2004; Thompson et al 2002].

Even the admirable Revkin doesn't get it quite right: On horizontal surfaces, observations and modeling show a role for melting in both the baseline ablation and the sensitivity of ablation to precipitation and temperature; melting is the dominant ablation mechanism on vertical ice cliffs; and though Kaser et al find «no evidence» about rising temperatures, it is only because the in situ studies don't cover a long enough period to detect trendOn horizontal surfaces, observations and modeling show a role for melting in both the baseline ablation and the sensitivity of ablation to precipitation and temperature; melting is the dominant ablation mechanism on vertical ice cliffs; and though Kaser et al find «no evidence» about rising temperatures, it is only because the in situ studies don't cover a long enough period to detect trendon vertical ice cliffs; and though Kaser et al find «no evidence» about rising temperatures, it is only because the in situ studies don't cover a long enough period to detect trends.

15, Maurizio, there has been changes in dominant winds, but my take on the greater ice melt is a flat out warmer atmosphere (causing these winds to change) which shows itself as a brighter twilight during the long night, especially when there is a cooling on the surface.

[Response: It's a summer - time melt - pond — fresh water created from surface melting that sits on top of the ice.

The trait, he proposed, comes to the surface when such people confront strong messaging on the need for emissions reductions amid enduringly murky science on what's driving some particular extreme environmental phenomenon in the world — whether a brief period of widespread melting on the Greenland ice sheet, a potent drought, a tornado outbreak or the extreme event of the moment, the hybrid nor» easter / hurricane known on Twitter as #Frankenstorm.

# 217, A little hint for the volcano «dun it» gang, find the spot where the surface ice has melted, either on a glacier or on floating ice, aside from that, laughing is a healthy thing to do, its good stand up comedian stuff..

Extent of surface melt over Greenland's ice sheet on July 8, 2012 (left), and July 12, 2012 (right).

Another possibility might be a slowing of deep circulation (not sure how much there is, mind), in which case the opposite occurs, and the surface waters heat up even faster, leading to yet more rapid surface melt, smaller winter ice volumes and so on.

Most glaciologists have assumed that temperature trends in that region are not big enough to matter in the way that they have mattered on the Antarctic Peninsula, where surface melting has led to ice shelf collapse.

Unlikely: this idea was based on the hypothesis that the Atlantic thermohaline circulation, which carries warm surface water to northern Europe, could be halted by the influx of fresh water from melting Arctic ice.

Remember for a long time «pingos» were surface land features — odd hills on the flat tundra, in areas that that had been under the ice age ice, then had been underwater as that ice melted and sea level rose, then exposed again during the next ice age.