Sentences with phrase «from polar ice sheets»

«Significant loss of ice from polar ice sheets» Of course, this does not apply to floating ice (with the exception of small changes due to higher temperature and water expansion that might happen incidentally).

The lower trend found by our study is consistent with the median projected sums of thermal expansion and glacier mass loss, implying that no net contribution from polar ice sheets is needed over 1901 - 1990.

Not exact matches

The research team found the evidence confirming the stability of the East Antarctic ice sheet at an altitude of 6,200 feet, about 400 miles from the South Pole at the edge of what's called the polar plateau, a flat, high surface of the ice sheet covering much of East Antarctica.

The IPCC has taken a crack at that, identifying 26 «key vulnerabilities» in its most recent assessment, ranging from declines in agricultural productivity to the melting of ice sheets and polar ice cover as well as determining how to judge if they are spiraling out of control.

Because of the warming, «there are some potentially catastrophic events that must be considered,» including sea level rise from melting polar ice sheets, according to the document.

Mitrovica, J. X., Tamisiea, M. E., Davis, J. L. & Milne, G. A. Recent mass balance of polar ice sheets inferred from patterns of global sea - level change.

The differences are that the UVic model has a smaller forcing from the ice sheets, possibly because of an insufficiently steep lapse rate (5ºC / km instead of a steeper value that would be more typical of dryer polar regions), and also a smaller change from increased dust.

On the other hand, during those periods between widespread glaciation, the water had melted from the ice sheets and polar areas, flowed, back into the oceans and sea level was as high or higher than now.

Installed in conjunction with the more traditional gallery exhibition, 33 °, the murals range from the humorous, an image of tourists wandering aimlessly across an aqua blue expanse, to a sobering, a black fissure opening stark and deep in what we are to assume is an arctic ice sheet, to the iconic, a lonely polar bear drifting on a small iceberg.

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Rapidly rising seas resulting from melting glaciers as well as polar ice sheet nearly wiped out the Great Barrier Reef some 125,000 years earlier, according to University of Sydney researchers.

They concluded the influx of freshwater from melting ice sheets in modern times would essentially shut down the ocean's circulation, causing cool water to stay in the Earth's polar regions and equatorial water to warm up even faster.

The Greenland ice sheet is poised for another record melt this year, and is approaching a «tipping point» into a new and more dangerous melt regime in which the summer melt area covers the entire land mass, according to new findings from polar researchers.

The only comprehensive study of the Antarctic Ice Sheet mass was a 10 + year study based on continuous 24/365 satellite measurements over the period 1993 to 2003, covering 80 % of the AIS with estimates from other methods for the remaining 20 %, which can not be measured by satellites (coastal areas and polar regions).

The schematic below from Mangerud and Svendsen shows the warm water incursions from the Atlantic flowing past the west coast of Svalbard at about 11 thousand years ago, when the Laurentide Ice Sheet still covered the eastern half of Canada and the northern US, excluding fish, seals and polar bears from most of Canadian Arctic and Hudson Bay.

Your readers may be interested to learn that it takes many years before gas bubbles in polar ice sheets are sealed from contact with the atmosphere.»

The Marcott paper is no different from Hansen» 88, Mann» 98, Mann» 99, the SPM of AR4, the drowned polar bears, the collapse of the Greenland ice sheet and glaciers everywhere.

Due to the high elevation of the Antarctic ice sheet and to the cold, dry and thin polar atmosphere, up to 40 % of the total MSU tropopspheric signal actually comes from the surface (Johanson and Fu 2007).

They based their findings on analysis of the chemical isotopes locked in ancient ice from the Weddell Sea embayment, and the evidence suggests that in the past, when polar waters became more stratified, the ice sheets melted much more quickly.

«When we look at the complex environmental systems of our planet, from climate to the polar ice sheets, there will always be lingering uncertainties, and some surprises probably await us.

Pictures of ice calving from the Arctic ice pack and polar bears stranded on ice sheets drifting in the frigid water bring an emotional charge to the discussion.

Future sea - level rise from warming of polar ice sheets http://www.victoria.ac.nz/news/2017/02/future-sea-level-rise-from-warming-of-polar-ice-sheets This video has...

The polar ice sheets serve as «thermostats» of global temperatures from which cold air and cold ocean currents emanate, moderating the effects of solar radiation.

Warming ocean currents could eat into polar ice - sheets from beneath, increasing the rate at which they flow into the sea, say researchers in a paper out in Nature Geoscience today.

The survey shows that there was a net loss of ice from the combined polar ice sheets between 1992 and 2002 and a corresponding rise in sea level.

A major limitation is the fact that the calibration phase for these semi-empirical models does not cover the range of climate - system behaviour that might be expected for the 21st century, i.e., significant loss of ice from the large polar ice sheets.