Sentences with phrase «amount of sea ice»

The total amount of sea ice in the polar regions during that time of the year is about 17 million square kilometers.

Indeed, the lowest amount of sea ice volume, or minimum, was reached a few weeks ago.

The report says the high amounts of sea ice are predominantly a result of changing wind patterns.

On Sunday, the total amount of sea ice covering the Arctic Ocean was 1.58 million square miles, the smallest size ever observed by NASA satellites since the space agency began monitoring earth's polar ice caps 30 years ago.

New research from Carnegie's Ivana Cvijanovic (now at Lawrence Livermore National Laboratory) and Ken Caldeira, as well as Douglas MacMartin of Caltech, shows that while an incredibly large effort could, in principle, restore vast amounts of sea ice by this method, it would not result in substantial cooling.

The good news is that even with a reduction to less than 50 % of the current amount of sea ice the ice will not reach a point of no return: a level where the ice no longer can regenerate itself even if the climate was to return to cooler temperatures.

The record amount of sea ice lost in the Arctic Ocean over the past half - century has caused entire landscapes in Alaska and Canada to change dramatically - sometimes on a daily basis.

In the summer of 2012 a record low for Arctic sea ice was set, while the ice cover in summer 2013 was somewhat more normal, with the 6th lowest amount of sea ice since comprehensive records began in 1979.

This year the melt was from 22 Tm ^ 3 to 4 Tm ^ 3 which means that the average amount of sea ice lost since 1995 is between 6 Tm ^ 3 and 7 Tm ^ 3, perhaps not enough to halt the THC, but perhaps enough to form a cold blob.

But a large amount of sea ice lingered along Canada's east coast into May and June of 2017.

They ran one set of simulations with Arctic ice coverage typical of recent years and another in which parameters in the model were set so that a much lower amount of sea ice formed each year.

Previous research found ice arches failed to form in the Nares Strait in 2007 and a record amount of sea ice flowed south that year.

The study's authors then matched the sulfate aerosol simulations to Russian observational data that suggested a substantial amount of sea ice growth during those years in the eastern Arctic.

«The good news,» said Sven Funder, a co-author of the Science study, «is that even with a reduction to less than 50 % of the current amount of sea ice the ice will not reach a point of no return.»

This overshoot is caused predominantly by the reduction of the meltwater in the northern North Atlantic associated with the retreat of the large amount of sea ice, an effect that becomes dominant when the subpolar North Atlantic is covered by sea ice as in the glacial condition.

The record amount of sea ice

Even the ocean around Antarctica, which for a few years had a very high amount of ice, has had a very low amount of sea ice this year.

The total amount of sea ice has been falling, even while sea ice extent bounced back in the last few years.

The image showed that the amount of sea ice around the poles is dramatically lower than scientists would have predicted.

The authors also found that surface temperatures in the Arctic are more sensitive to the amount of sea ice than to the amount of land - based ice.

Their data also revealed that sea ice divergence, which reflects the amount of sea ice spreading outward making more water surfaces, in the early melt season (May - June) triggers large - scale feedback, which subsequently amplifies ice melting in the summer.

There has been a huge increase in the amount of sea ice melting each summer, and some are now predicting that as early as 2030 there will be no summer ice in the Arctic at all.

«Because these plants are photosynthetic, it's not surprising to find that as the amount of sea ice cover declined, the amount of [photosynthesis] increased,» says biological oceanographer Kevin Arrigo of Stanford University's School of Earth Sciences, who led an effort to use the MODIS (Moderate Resolution Imaging Spectroradiometer) devices on NASA's Terra and Aqua satellites to determine changes in phytoplankton growth.

«Though the amount of sea ice is of course subject to natural fluctuations, the long - term decline is obvious.»

They found that these sorts of whitening methods could restore some amount of sea ice — about three - quarters of a square kilometer of ice for every whitened square kilometer (or three - quarters of a square mile for every whitened square mile).

The bad news is that there is a clear connection between temperature and the amount of sea ice.

While the amount of sea ice decreased in northern Greenland, it increased in Canada.

Among other changes, the amount of sea ice that sticks around through more than one summer has declined sharply since the 1980's, as seen in the sequence of images above.

The solid black line is the amount of sea ice over the year averaged from 1979 — 2000.

N form the summer of 2014 and the amount of sea ice volume (PIOMAS) in the end of the winter (28.2.15).

Comparing those with estimates of the total amount of greenhouse gas emissions, they found that each additional metric ton of carbon dioxide sent into the atmosphere reduced the amount of sea ice by three square meters, or about 11 square feet.

The amount of sea ice in the Arctic has fallen to the lowest level on record, a confirmation of the drastic warming in the region and a likely harbinger of larger changes to come.

Increasing amounts of sea ice and clouds could reflect more sunlight back into space, but Wally Broecker suggests that a major greenhouse gas is disturbed by the far - north failure of the salt conveyor, and that this affects the amount of heat retained.

This follows the amount of sea ice at both poles, Arctic and Antarctic.

N from the summer of 2014 and the amount of sea ice volume (PIOMAS) in the end of the winter (28 February 2015).