Sentences with phrase «ice per year from»

They found that the northeast Greenland ice sheet lost about 10 billion tons of ice per year from April 2003 to April 2012.

Not exact matches

Not only that but they are also on a moving glassier and the ice cores used for dating well they are taken from the interior of the ice sheet where the ice is quite stable and they don't get anywhere near 2 meters of snow per year.

The team found that results from the two methods roughly matched and showed that Greenland is losing enough ice to contribute on average 0.46 millimetres per year to global sea - level rise.

From 1994 to 2003, the overall loss of ice shelf volume across the continent was negligible: about 25 cubic kilometers per year (plus or minus 64).

The researchers discovered that Antarctic ice shelves shrank on average 25 cubic kilometers per year from 1994 to 2003.

Between 2002 and 2007, satellite measurements showed that ice from the glacier's grounding line, the spot where it transitions from being on the land to in the sea, thinned at a rate of 1.2 meters to 6 meters per year.

Satellites from NASA and other agencies have been tracking sea ice changes since 1979, and the data show that Arctic sea ice has been shrinking at an average rate of about 20,500 square miles (53,100 square kilometers) per year over the 1979 - 2015 period.

Ambient geothermal heat emanating up from the seafloor melts the underside of the ice sheet at a rate of several penny thicknesses per year.

But measurements from the Gravity Recovery and Climate Experiment (GRACE) satellites, which weigh ice by measuring its gravitational tug from space, suggest that West Antarctica as a whole is losing ice — together with the Antarctic Peninsula, about 150 cubic kilometers per year as of 2005.

The lakes are fed by geothermal heat that seeps up from the Earth's interior, melting away the bottom of the ice sheet at a rate of several dime - thicknesses per year and liberating water from the ice.

«We're talking about the potential for centimetres per year just from [ice loss in] Antarctica.»

Patrick Crill, an American biogeochemist at Stockholm University, says ice core data from the past 800,000 years, covering about eight glacial and interglacial cycles, show atmospheric methane concentrations between 350 and 800 parts per billion in glacial and interglacial periods, respectively.

Lead author Dr Malcolm McMillan from the University of Leeds said: «We find that ice losses continue to be most pronounced along the fast - flowing ice streams of the Amundsen Sea sector, with thinning rates of between 4 and 8 metres per year near to the grounding lines of the Pine Island, Thwaites and Smith Glaciers.»

In a computer simulation that includes detailed interactions between wind and sea, thick ice — more than 6 feet deep — increased by about 1 percent per year from 1979 to 2010, while the amount of thin ice stayed fairly constant.

According to the latest report from the Intergovernmental Panel on Climate Change (IPCC), the Greenland ice sheet has been contributing between 0.25 mm and 0.41 mm per year to global sea levels since 1993.

Glacial Isostatic Adjustment (GIA) occurs in response to retreating ice from the last glacial period, where around most of the world, land is subsiding at a fraction of a millimetre per year, compounding the problem of sea - level rise.

According to Christner, agricultural losses from ice nucleating bacteria, such as Pseudomonas syringae, often exceed $ 1 billion dollars per year in the United States, so understanding their mode of dispersal is essential for mitigating their impact on crops.

As glaciers and overland ice sheets shed ice and the warming oceans expand, sea level rise is accelerating; NASA says the rate of sea level rise has jumped from 1 millimeter per year 100 years ago to 3 millimeters per year today.

The largest contibution to global sea level rise from the Greenland and Antarctic ice sheets combined is around 16.9 mm per year, but is more likely to be around 5.4 mm per year by 2100.

From 2008 to 2015, continent - wide rates of ice discharge increased by about 36 billion tons per year.

Ice core data from Antarctic from ocean sediments show 8 episodes of very large ice flux — largest 14,600 years ago, meltwater pulse 1a — 1 - 3 meters sea level rise per century for several centuriIce core data from Antarctic from ocean sediments show 8 episodes of very large ice flux — largest 14,600 years ago, meltwater pulse 1a — 1 - 3 meters sea level rise per century for several centuriice flux — largest 14,600 years ago, meltwater pulse 1a — 1 - 3 meters sea level rise per century for several centuries.

The present - day ice loss from the Antarctic Peninsula is -41.5 giga - tonnes per year [16].

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What a great gift to have a reliably ice - free Northwest passage for 2 - 3 months per year (it can't be much more than that, what with long sunless winters and efficient IR emissive cooling from exposed water).

Glacial Isostatic Adjustment (GIA) occurs in response to retreating ice from the last glacial period, where around most of the world, land is subsiding at a fraction of a millimetre per year, compounding the problem of sea - level rise.

Accelerated ice discharge in the west and particularly in the east doubled the ice sheet mass deficit in the last decade from 90 to 220 cubic kilometers per year.

From what I can gather 80m is all ice melted, and that will happen as an S curve where we are currently at 4 mm per year cf 2 mm per year rise just a wee while ago.

The researchers «weighed» Antarctica's ice sheet using gravitational satellite data and found that from 2003 to 2014, the ice sheet lost 92 billion tons of ice per year - that's more than five times the height of the Empire State Building.

Overall, ice - loss rates from all of Antarctica increased by 6 billion tons per year each year during the 11 - year study period.

Is the 360 GT per year just from Antarctic land ice or global land ice >

The GRACE observations over Antarctica suggest a near - zero change due to combined ice and solid earth mass redistribution; the magnitude of our GIA correction is substantially smaller than previous models have suggested and hence we produce a systematically lower estimate of ice mass change from GRACE data: we estimate that Antarctica has lost 69 ± 18 Gigatonnes per year (Gt / yr) into the oceans over 2002 - 2010 — equivalent to +0.19 mm / yr globally - averaged sea level change, or about 6 % of the sea - level change during that period.

Three years of measurements from CryoSat show that the Antarctic Ice Sheet is now losing 159 billion tonnes of ice each year, enough to raise global sea levels by 0.45 mm per yeIce Sheet is now losing 159 billion tonnes of ice each year, enough to raise global sea levels by 0.45 mm per yeice each year, enough to raise global sea levels by 0.45 mm per year.

The ice mass loss observed in this research was a change from the trend of losing 113 ± 17 gigatons per year during the 1990s, but was smaller than some other recent estimates (Luthcke et al. 2006).

For eleven years, from 1993 to 2003, the Greenland ice sheet grew two inches per year, growing almost two feet in thickness.

Landsat 7 and 8 imagery from 2013 through 2015, when compared to earlier estimates based on synthetic aperture radar, indicated ice discharge of 1,932 ± 38 gigatons per year — an increase of 35 ± 15 gigatons per year since roughly 2008.

e.g. there is 1) a mild global cooling from the Holocene Climatic Optimum 2) A millenial scale oscillation of ~ 1500 years per Loehle & Singer above (i.e. an approximately linear rise from the Little Ice Age — or better an accelerating natural warming since the LIA) 3) A 50 - 60 year multidecadal oscillation.

Conclusion By circling the earth 15 times per day, for years on end, observing constantly, the GRACE satellites * can * do see plainly what some denialists claim is impossible to see at all: gravitational shifts from melting ice - caps.

Glaciologists analyzed ice flow to the ocean from 1991 to 2015 in the Queen Elizabeth Islands, and found that surface melt grew by a whopping 900 percent, or 10 times, in the 10 years between 2005 and 2015, increasing to 30 gigatons per year by the end of that time.

Simultaneously the best studied Greenland glacier, the Jakobshavn, began retreating from its Little Ice Age maximum with it fastest observed retreat of 500 meters per year between 1929 and 1942.

As reported in Remote Sensing of Environment, from 1953 to 2010, the average rate of ice surface loss was 18 centimeters (7.1 inches) per year.

For example, as a result of ice melting on land, such as from glaciers and ice sheets, as well as thermal expansion of the ocean, we have seen sea level rise 3.4 millimeters per year from 1993 - 2015, which puts coastal communities at risk of flooding and infrastructure damage.

From 2011 to 2015, the ice surface decrease was 32 centimeters (13 inches) per year, which is a water loss of 4.43 gigatons annually, Zheng says.

The up trend for the anomaly in sea ice from 1978 to end 2006 is 804Km ^ 2 per year.

According to study researcher Jürgen Determann, who like Hellmer is from the Alfred Wegener Institute for Polar and Marine Research, if the inland ice moves in lockstep with the ice sheet melting, it will mean an additional global sea level rise of 0.17 inches (4.4 millimeters) per year.

This paper analyzes the 420,00 o year Antarctic Vostok ice core data comparing the CO2, CH4, sea level, and surface albedo changes do derive his empirical 3 °C per 4 W / m2 climate sensitivity from the ice core data.

Ice core samples from before the industrial revolution show that carbon dioxide levels fluctuated, but did not exceed 300 parts per million in the last 800,000 years.

The MDB average rainfall during the last three decades has been recording a 10 % loss per decade, I believe this is primarily due to declining solar radiation levels, moving from the highest for 8000 years to presently the lowest for 100 years, this solar decline is expected to continue for at least another 3 decades, maybe 6 decades like it did in the 16th century, brining on the last little ice age.

Satellites that constantly scan environmental conditions on the planet's surface had revealed that from 8 July to 12 July, 97 per cent of the surface of the ice sheet contained water rather than ice, whereas typically just 45 per cent of the surface area melts at this time of year.

The new Leeds led research calls into question a recent study from the University of Bristol that reported 45 cubic kilometres per year increase in ice loss from the sector.

Retreat at Thwaites Glacier, on the other hand — another of West Antarctica's monster glaciers, and currently the subject of greatest concern among Antarctic ice experts — has slightly increased in the last few years, from about 1,100 feet to nearly 1,400 feet per year.