Sentences with phrase «at ice loss rates»

For short periods, it peaked at ice loss rates of over 3000 cubic kilometres per year.»

For short periods, it peaked at ice loss rates of over 3000 cubic kilometres per year.»

Not exact matches

«West Greenland Ice Sheet melting at the fastest rate in centuries: Weather patterns and summer warming trend combine to drive dramatic ice loss.&raqIce Sheet melting at the fastest rate in centuries: Weather patterns and summer warming trend combine to drive dramatic ice loss.&raqice loss.»

Based on what we know, we can expect the rapid ice loss to continue for a long time yet, especially if ocean - driven melting of the ice shelf in front of Pine Island Glacier continues at current rates,»

New research suggests that as early as 2090, rates of ice loss at the site could exceed gains from new snowfall.

But that could soon change, Rignot said, because the rate at which ice sheets are losing mass is increasing three times faster than the rate of ice loss from mountain glaciers and ice caps.

Since 1979, winter sea ice extent has decreased 3.2 percent per decade (the loss is much more pronounced in summer at a rate of 13.4 percent per decade).

Other researchers look at raised beaches [32] and palaeo lakes to record previous rates of isostatic uplift and rates of sea level rise [33, 34]; this can help constrain previous ice volumes and rates of ice loss.

And since you have missed this acceleration you have assumed that the rate will remain at 3.3 mm / year for the rest of this century, despite ongoing observations of increases in ice mass loss in Greenland and parts of Antarctica.

Now, this is why you are not thinking — let's assume that at any particular level of regional temperature, we can expect a certain loss rate — this is reasonable because, as you say, there is a lot of ice in Greenland.

In outline, the model supposes that the rate of change of ice extent has two terms - accumulation proportional to its length, and loss at the grounding line which is proportional to the cross-section area there, which because a constant width is assumed is proportional to the depth of the ice.

Ice loss is accelerating at a rate of 26 Gigatonnes / yr2.

If both Greenland and West Antarctica shed the entirety of their ice burden, global sea levels would rise by 12 to 14 m. Although these icecaps would not disintegrate within a century, the loss of even a third of their mass — quite plausible if the rate of polar ice loss continues to double each decade — would force up the oceans by at least 4 m, with disastrous socioeconomic and environmental consequences.

Ice mass loss is occuring at an accelerated rate in Greenland, Antarctica and globally from inland glaciers.

The best fitting trend finds that Greenland ice loss is accelerating at a rate of 30 Gigatonnes / yr2.

Brooke C. Medley, a postdoctoral fellow with NASA who contributed to one of the new papers on Antarctic ice loss, said the findings demonstrate that the planet's large ice sheets, which were once thought to be stable, are responding to global warming and other influences at a rapid rate.

In other words — at the estimated current rate of ice loss from the Greenland ice cap it would take 14 000 years for the ice sheet to melt.

Polyak et al. (2010) looked at Arctic sea ice changes throughout geologic history and noted that the current rate of loss appears to be more rapid than natural variability can account for in the historical record.

Just yesterday we had an example of a scientist who projected that Himalayan glaciers were losing ice at an an amazing rate correcting himself and cutting his own mass loss estimate by 30 %.

The resulting enhanced loss of summer and winter sea ice resulted in feedbacks, associated with Arctic Amplification, which has raised Arctic air temperatures at a rate twice the global average.

We are seeing an increase in the recent speed of ice loss, when compared to the long - term ice - loss rate,» says lead researcher Whyjay Zheng, a doctoral student in geophysics at Cornell University.

Sea ice minimum levels are falling at the rate of 14 % a decade in the Arctic, and polar bears have been feeling the loss.

In addition, the study showed that ice loss rates have not only sped up at the grounding lines, but also more than 100 miles inland, compromising the entire ice sheet that the glacier helps hold back from the sea.

No research papers from scientists in the field have predicted ice loss at the rate it has been happening.

The individual responses were based on a range of methods: statistical, numerical models, comparison with previous observations and rates of ice loss, or composites of several approaches; details can be found in the individual outlooks available at the bottom of this page.

The individual responses were based on a range of methods: statistical, numerical models, comparison with previous observations and rates of ice loss, or composites of several approaches; details can be found in the individual outlooks available at the end of this report.

After extracting the influence of land water storage, it is shown that the GMSL have been rising at a rate of 4.4 ± 0.5 mm / yr for more than three years, due to an increase in the rate of both land ice loss and steric change.

2) ice loss rates are debated at least in terms of the Antarctic http://hockeyschtick.blogspot.co.uk/2014/08/new-paper-finds-melt-rate-of-antarctic.html

Fluctuations in the mass of the Greenland and Antarctic ice sheets are of considerable societal importance as they impact directly on global sea levels: since 1901, ice losses from Antarctica and Greenland, alongside the melting of small glaciers and ice caps and thermal expansion of the oceans, have caused global sea levels to rise at an average rate of 1.7 mm / yr.

Over the satellite era, the rate of spring snow loss is similar to that of late - summer Arctic sea ice extent, with each at an accelerated pace over the past decade.

«Much of our confidence stems from the fact that our model does well at predicting slow changes in ocean heat transport and sea surface temperature in the sub-polar North Atlantic, and these appear to impact the rate of sea ice loss.

The loss, in recent decades, of thousands of square miles of sea ice has accelerated warming in the Arctic, where temperatures are increasing at two to three times the rate of the globe as a whole.

-LSB-...] from scraping over rocks, can melt ice at the base, a factor that's forced upward revisions of the rate of ice loss from global warming.

Current total ice - loss in Greenland is running at an estimated 200 Gte / yr and Antarctica at 150 Gte / yr (with ice mass gain in the east and loss in the west — with some estimates of a net gain)-- at that rate of 1mm / yr, by 2100 the global ice - loss would raise sea level by a little over 3 inches.

The rate of ice loss during July 2016 was slightly below average at 83,800 square kilometers (32,400 square miles) per day.

They determined, however, that this volume had now increased by a further 3 cubic miles each year, prompted by an acceleration in the rate at which the ice caps and glaciers are melting.Unlike what many other scientists have said — including, most prominently, NASA's James Hansen (who believes that a rise in 17 inches by 2100 will be mainly precipitated by the melting of ice sheets)-- the authors of this study believe that the loss of ice from glaciers and ice caps will account for the majority of the expected rise in sea levels.

Using a simple elastic model, we estimate that western Greenland's ice loss is accelerating at an average rate of 8.7 ± 3.5 Gt yr − 2, whereas the rate for southeastern Greenland — based on limited data — falls at 12.5 ± 5.5 Gt yr − 2.

In Greenland, the survey saw large ice losses along the southeastern coast and a large increase in ice thickness at higher elevations in the interior due to relatively high rates of snowfall.

-- dropping — multi year ice will disappear in summer minimum likely within 30 years — rate of change based on current knowledge is that ice loss is unprecedented, at least within the last million years.

In August, warmer conditions returned, which combined with a rather diffuse ice cover in the Beaufort and Chukchi seas, has led to a speed - up in the rate of ice loss at the beginning of August, particularly in the Chukchi Sea.