Sentences with phrase «meters of water ice»

The glaciers contain nearly 150 billion cubic meters of water ice — enough ice to cover Mars a meter deep, and more than enough to someday sustain human colonists.

Not exact matches

Radar measurements and models of Earthly glacial ice flows led researchers to conclude that the glaciers spotted on Mars from orbiters contain nearly 150 billion cubic meters of water.

«That's a lot of water to lift hundreds of meters of ice.»

Mountains of water ice tower thousands of meters over fields of frozen nitrogen and methane.

At the same time, thermistors buried several meters into the ice at the AMIGOS site recorded a pulse of warmth — suggesting that water from snowmelt was percolating down.

Scientists find translucent fish in a wedge of water hidden under 740 meters of ice, 850 kilometers from sunlight

The water level in the borehole shot up six meters, indicating that pressurized seawater from beneath the ice had spurted into the bottom of the hole.

The deposits are exposed in cross section as relatively pure water ice, capped by a layer one to two yards (or meters) thick of ice - cemented rock and dust.

At some of them, the exposed deposit of water ice is more than 100 yards, or meter, thick.

Scientists have been keeping a wary eye on Greenland's ice sheet, which holds in its frozen waters the equivalent of 7.4 meters of sea level rise.

The new images, at resolutions of about 80 meters per pixel, show a striking shoreline, where smooth plains of nitrogen ice from Pluto's «heart» rub up against water ice mountains several kilometers high.

However, during winter field surveys over the last decade, lake ice has typically only grown to 1.5 meters (5 feet) thick, and has been as thin as 1.2 meters (4 feet),» said Christopher Arp, research assistant professor at the University of Alaska Fairbanks (UAF) Water and Environmental Research Center and lead author of the new study accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union.

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.

During two different research expeditions, in the mid - to late springs of 2010 and 2012, the AUV — which resembles a 2 - meter - long bunk bed with twin hulls stacked on top of one another — traveled back and forth through several different Southern Ocean waters in a lawn mower — like pattern at depths of 20 to 30 meters under the ice to collect a 3D survey of the topography of the sea ice's underbelly.

And so it was, when I reported on January 21 that fish were found living in an isolated corner of the ocean beneath 740 meters of ice in Antarctica: People asked what this might mean for finding life on distant worlds such as Europa, a moon of Jupiter that very likely harbors an ocean of liquid water beneath a crust of ice.

The Pine Island Glacier expedition deployed multiple, unique sensor packages, developed by NPS Research Professor Tim Stanton, through 500 meters of solid ice to determine exactly how quickly warm water was melting the massive glacier from beneath.

The melting occurs where the overlying ice is about 400 meters thicker, Siegert notes; the added pressure lowers the melting temperature, just as the pressure of an ice skater's blade creates a thin rind of water underneath.

Eighteen - meter - long humpbacks, for instance, are Antarctica's other abundant baleen whales, but they stick to feeding in the open water and the edges of the sea ice.

A new study shows that as a glacier's ice melts, bubbles of pressurized ancient air escape into the water, leading to noise levels even louder than those beneath rain - pounded seas heaving with 6 - meter waves.

Not only are ice sheets in Greenland and Antarctica breaking up faster than scientists expected, but more of their melt water is flowing into oceans, he said, which will raise sea levels by 3.3 feet (1 meter) by 2100.

Because so much water was stored on land as ice sheets, sea levels were likely 120 meters lower than today, exposing the bottom of what is now the English Channel.

Amazingly, under all that ice lies a lake of liquid water, called Lake Vostok, that is 700 meters deep and as big in area as Lake Ontario.

It was bad enough to learn last year that the ice sheets of West Antarctica were headed toward inevitable collapse in just a few centuries and that the world would have to contend with the more than 3 meters of water they hold.

Scientists have found that the Totten Glacier, a keystone to East Antarctica's ice sheets and the more than 3 meters of water they hold, is susceptible to two troughs of warm water that could be accelerating its melting from underneath.

The study's authors found that in the last 30 years of the study, the ice sheet gained nearly 5 meters (16 feet) more water than it did during the first 30 years of the studied time period.

The long - term stability of the massive ice sheets of Antarctica, which have the potential to raise sea levels by hundreds of meters, has been called into question with the discovery of fast - moving rivers of water sliding beneath their base.

South of Spitzbergen, the oceans have been ice free the past 2 winters, reason being, the warm waters from the Gulf Stream are travelling further north, and closer to the ocean surface, only 25 meters at the last measurement, The ocean temperature has been +2 C instead of -2 C.

However, I have also heard that a few meters of ice (or water) make a sufficient shield.

Impact craters at many latitudes sometimes expose thin ice layers a foot or so beneath Mars» surface.132 «At polar latitudes, as much as 50 percent of the upper meter of soil may be [water] ice.»

A co-author of a paper published Jan. 11 in the journal Science noted that future explorers can probably use the ice as a source of water, given the ice is only one to two meters (3.3 to 6.5 feet) below the surface.

``... near the poles, Mars Odyssey [spacecraft] has shown, as much as 50 percent of the upper meter of soil may be [water] ice.»

However, layers of water ice, up to a few hundred meters thick, are permanently shielded from sunlight in craters (shown above in black) near Mercury's poles.10 How strange.

That scenario gained support when an early close - up picture revealed mountains, some 3500 meters high, composed of water ice.

Measuring some 300 meters across (985 feet), the Belize Blue Hole was created more than 10,000 years ago when rising waters at the end of the Ice Age submerged a vast series of caverns and caves.

The ice concentration of the small floes was about 10 to 30 percent and the mini-icebergs jutting out of the water by about one meter provided for a situation which was mastered by the modern multipurpose heavy lift project carriers being built with ice class E3 and the experience of the captains.

As a result, while a layer of ice - cold fresh water sits just beneath the sea ice, about 20 meters (65 feet) down there is a layer of denser, saltier water that has been gradually warmed by the sun's rays.

% due to eruption 9.5 % (assuming the average thickness of melted ice was 1 meter, and not allowing for any of the heat being lost to warming the 4 km thick sea water column, or air, or evaporation)

Assuming that the open water in summer gets reasonably mixed through a 50 - 200 meter layer, the meter + layer of sea ice forms from water with a salt content of ~ 33psu.

I suspect the amount of additional 33psu surface waters entrained by the sinking brine is indicated by the nearly 35psu salinity of Arctic ocean water below about 300 meters depth; if the salt from each cubic meter of ice formed were added to approximately 15 cubic meters of water at 33psu, it would raise the salinity to near 35psu.

Point (ii) says that if we melt (say) a meter of ice, we will create more open water if we start with thin ice than if we start with thick ice.

They were within 600 meters of reaching land and safety, and headed directly to a small polynya, a region of open water or thin ice.

As to melting ice, or crustal movements resulting in marine fossils at 6000 meters, or sunken cities, I assume that basic knowledge of water phases and plate tectonics are sufficient.

With melt - water lubricating the surface between the glaciers and the rocks on which they rested, ice flows were accelerating, flowing into the ocean at a pace of 2 meters an hour.

In a first - of - its - kind feat of science and engineering, a National Science Foundation (NSF)- funded research team has successfully drilled through 800 meters (2,600 feet) of Antarctic ice to reach a subglacial lake and retrieve water and sediment samples that have been isolated from direct contact with the atmosphere for many thousands of years.

What we do not see in this image, but what clearly happened, was that an ice mass hundreds of meters tall and covering an area of about 12.5 square kilometers was shattered into flinders as warming ocean waters invaded the Greenland Ice Sheice mass hundreds of meters tall and covering an area of about 12.5 square kilometers was shattered into flinders as warming ocean waters invaded the Greenland Ice SheIce Sheet.

The only problem with all the predictions about the level of the World Ocean rising is that, the World Ocean is refusing to rise up in support of the predictions, the other problem is that ice is frozen fresh water and frozen fresh water only covers about 5 % of this planet above sea level and frozen water under the level of the World Ocean does not count as the World Ocean will fall a small amount if that ice melts, so if the ice there is enough to get the World Ocean to rise and significant amount then it must be piled up very high, I cubic kilometer of water as ice, should it melt, would make 1000 square kilometers rise by one meter, so when you use this simple math then somewhere on the planet, above the level of the sea, then there must be over 500,000 cubic kilometers of ice, piled up and just waiting to melt, strange that no one can find that amount of ice, all these morons who talk about the rise of the World Ocean in tens of meters, this includes you Peter Garrett or Mr. 7 Meters, the ice does not exist to allow this amount of rise in the World Ocean, it is just not meters, this includes you Peter Garrett or Mr. 7 Meters, the ice does not exist to allow this amount of rise in the World Ocean, it is just not Meters, the ice does not exist to allow this amount of rise in the World Ocean, it is just not there.

I would be happy for any real mathematician to solve this complex problem and say exactly, «How much water is needed for a rise of 1 meter and up to the limit of the BS that gets said, and «where all the water is going to come from» all I wanted to do was to point out that all the talk about rises of 20 meters is such BS, as the water does not exist to do that, me I think that if all the ice did melt then you would be lucky to get a 1 meter rise, no one would be more thrilled than me if this math was worked out better than I can do it.

A significant portion of the Greenland ice sheet — which contains enough water to raise the worldwide sea level by about 23 feet (about 7 meters)-- would also melt.

The initial objective of the Argo program was to operate 3200 profiling floats in the ice - free waters from 60 ° N to 60 ° S to measure pressure, temperature, and salinity in the upper 2000 meters of the ocean.

«We find that the access of warm water to the glaciers and ice shelves in this region are almost controlled by a depth of about 700 meters [2,300 feet], which is just right above some of the warmest waters in the region,» said Eric Rignot, a professor of Earth system science at UCI and co-author of the new study.