Sentences with phrase «ice and water volume»

# 49 The contribution of these large glaciers seems just that in terms of ice and water volume, but put in the context of sverdrups, is another question.

Not exact matches

This requires no such nerve - wracking processes; it is literally as easy as boiling water for the first hour or so, and then you'll keep an eye on it and stir it regularly until it is just a slip of its original volume, intense magnification of the original taste, and oh so gooey on a crepe (filled with fresh banana and mango, here), on ice cream or on a spoon.

The fifth and sixth planets, both in the habitable zone, are more than half water — a volume so large that the water pressure alone could force much of it into a form of ice, Unterborn says.

Since the density of pure water ice is ca. 920 kg / m3, and that of sea water ca. 1025 kg / m3, typically, around 90 % of the volume of an iceberg is under water, and that portion's shape can be difficult to surmise from looking at what is visible above the surface.

With a volume of more than 700,000 cubic miles and an average thickness of 4,000 feet, the West Antarctic Ice Sheet (WAIS) holds enough water to raise sea levels by 15 to 20 feet — and it is already sweating off 130 billion tons of ice per yeIce Sheet (WAIS) holds enough water to raise sea levels by 15 to 20 feet — and it is already sweating off 130 billion tons of ice per yeice per year.

This glacial meltwater lake was enclosed in ice and experienced a massive breach during this period, which emptied an enormous volume of water into the ocean,» explains Herrle.

They are motivated by the humbling realization that our knowledge of undersea life as a whole is only slightly less sketchy than our knowledge of life under those Antarctic ice shelves: Even where the water is not covered by ice, its sheer volume — not to mention the difficulty of seeing and moving through it — means that it is nearly all aqua incognita.

What is alarming is that the volume of water and the extent and rapidity of its movement is suprisingly much greater than previously believed, and that a possible, perhaps likely, effect of this on ice sheet dynamics is to make the ice sheets less stable and more likely to respond more quickly to global warming than previously expected.

Sea level rise has two primary components: the expansion in volume of seawater with increased temperature and the addition of water in ocean basins from the melting of land - locked ice, including Antarctica and Greenland.

Scientists have long suspected that the network of cracks in Europa's ice sheet could indicate a large volume of water underneath, and recent analysis of magnetic field data from the Galileo probe seems to confirm there is a salty ocean down there.

And it's also important to remember that, while sea ice is increasing in Antarctica, glaciers and ice shelves are all melting rapidly, producing large volumes of fresh watAnd it's also important to remember that, while sea ice is increasing in Antarctica, glaciers and ice shelves are all melting rapidly, producing large volumes of fresh watand ice shelves are all melting rapidly, producing large volumes of fresh water.

The typical estimate of the sea - level change is five metres, a value arrived at by taking the total volume of the West Antarctic Ice Sheet, converting it to water and spreading it evenly across the oceans.

The changes in volume over a season also tell us how much ice is produced, how much heat is extracted from the ocean, how much brine is injected into the ocean as a result of ice growth and how much melt water is injected back into the ocean.

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.

Such floods are only constrained by the volumes of water and ice in the system.

This would seem to suggest that if the volume of ice melt is as great as suspected, that there had to be a greater salinity in the region that was mixing with the melt water to reduce the expanse and depth of the brackish region.

The main issue is that sea ice is fresher than sea water (has less salt), and since salty water is more dense (1028 kg / m3) than fresher water (1004 kg / m3 for 5 psu), the volume of sea water displaced by the ice is slightly less than the volume of the ice if it melted.

On decadal and longer time scales, global mean sea level change results from two major processes, mostly related to recent climate change, that alter the volume of water in the global ocean: i) thermal expansion (Section 5.5.3), and ii) the exchange of water between oceans and other reservoirs (glaciers and ice caps, ice sheets, other land water reservoirs - including through anthropogenic change in land hydrology, and the atmosphere; Section 5.5.5).

Ice displacement patterns such as the one below will drive a great volume of ice out of the Arctic Ocean and into warmer wateIce displacement patterns such as the one below will drive a great volume of ice out of the Arctic Ocean and into warmer wateice out of the Arctic Ocean and into warmer waters.

If ice is in a glass and you fill it to the top doesn't the volume of water stay the same as the ice melts?

Whether it exists as ice or water, it still has the same mass, it still displaces the same volume and there's no change in the volume of the ocean if it melts.

Siberian Arctic shelf ice volumes is partially function of the ratio of fresh water inflow from great Siberian rivers (Ob & Yenisei & Lena) and the saline Arctic sea waters.

Measuring the distance apart and speed of 2 satellites in space orbiting the earth to the width of a human hair with no margin for error [damn those drift recalculations], and taking into account unknown factors with respect to the true values for water depth, water weight at different salt concentrations, ice depth magma flows, volcanic activity etc [ie making a lot of guesses], plus taking human motivation on board [like CO2 increase must melt ice surely] can give you an accurate measurement of the volume ice in Antarctica.

Greater volumes of intruding warm water cause greater reductions of ice in the Barents and Kara Seas, deep inside the Arctic Circle.

From historic droughts around the world and in places like California, Syria, Brazil and Iran to inexorably increasing glacial melt; from an expanding blight of fish killing and water poisoning algae blooms in lakes, rivers and oceans to a growing rash of global record rainfall events; and from record Arctic sea ice volume losses approaching 80 percent at the end of the summer of 2012 to a rapidly thawing permafrost zone explosively emitting an ever - increasing amount of methane and CO2, it's already a disastrous train - wreck.

To notice something is going on with the world's ice sheets, you could measure melting water runoff, glacier retreat or use satellites and GPS to measure ice volume decline.

Though the Tibetan earthquake was going to happen at some time, it is possible that changes in ice loading on Himalayan glaciers, changes in water volume outflows in the annual Asian monsoon, and sea level rise adding pressure to the geological plates below coastlines — especially in low - lying Bangladesh — had an impact.

We use realistic estimates of mass redistribution from ice mass loss and land water storage to quantify the resulting ocean bottom deformation and its effect on global and regional ocean volume change estimates.

The outgoing flow through Fram Strait carries with it large volumes of fresh water as fragmented pack ice, a flow that is strongly episodic at decadal scale and is associated with the series of so called Great Salinity Anomalies observed within the circulation of the subarctic gyre and in the Nordic seas that were discussed in the previous chapter.

A third of the permanent snow and ice on New Zealand's Southern Alps has now disappeared, according to research based on aerial surveys by the National Institute of Water and Atmospheric Research.The researchers say that that since 1977, the volume of ice on the nation's Southern Alps has shrunk by more than 18 cubic kilometres [continue reading...]

«This allows us to get a better picture of projected regional ice volume change and potential impacts on local water supplies, and changes in glacier size distribution,» Radic said.

Ice - sheet volume is controlled by the balance between mass input and mass loss; mass input is almost entirely due to snowfall, and mass loss is from iceberg calving supplied by flow of the ice sheet, or runoff of melt watIce - sheet volume is controlled by the balance between mass input and mass loss; mass input is almost entirely due to snowfall, and mass loss is from iceberg calving supplied by flow of the ice sheet, or runoff of melt watice sheet, or runoff of melt water.

b) volumetric effects — change in the volume of water contained in the oceans and the geometry and areal extent of the ocean basins c) gravitational effects — change in the gravitational attraction of the earth (induced by deformation), by the change in distribution of ice and by the change in self - attraction of the water d) rotational effects — change in the moment of inertia caused by a change in the distribution of mass within the earth and on its surface.

However, as the water vapor rises the lapse rate means that the volume of air cools and eventually the water vapor condenses into water droplets and then into ice latent heat is given off to the surrounding air at each of these phase changes, with two effects.

For a very long time scale (ice ages and interglacials) the whole water volume may be in equilibrium with the atmosphere...» Ahlbeck, J. (1999) at http://www.john-daly.com/oceanco2/oceanco2.htm

That's the case in Antarctica, which is geographically very different to the Arctic, where an increase in surface sea ice area, but not total volume, is currently being observed due to increased precipitation and increased surface water run off.

John, Sea ice forming or melting will have no effect on sea level either way, as it is already in the water, the ice is already a part of the ocean's volume and including the parts above the water line it is displacing equivalent volumes to what its melt water will occupy.

What is alarming is that the volume of water and the extent and rapidity of its movement is suprisingly much greater than previously believed, and that a possible, perhaps likely, effect of this on ice sheet dynamics is to make the ice sheets less stable and more likely to respond more quickly to global warming than previously expected.

I have no supporting calculations, but for fun — how about wind - powered (tapping the notoriously consistent katabatic flow off the ice caps) snow - making machines on Greenland and Antarctica to sequester the excess oceanic water volume, and thus to thwart sea level rise.

Together, the present Antarctic and Greenland ice sheets contain enough water to raise sea level by almost 70 m if they were to melt, so that only a small fractional change in their volume would have a significant effect.