Sentences with phrase «of melting of those ice sheets»

Now assume that the rate of melting of those ice sheets is doubling every 5 or 10 years, as the sparse data seems to imply.
«A separate study in today's issue of Science reports that sea levels are probably rising slightly because of a melt of ice sheets.

Not exact matches

A team of top scientists explores the fastest warming place on Earth, as they examine the rapidly melting ice sheet of the West Antarctic Peninsula.
Impacts of thermal expansion and melting mountain glaciers can be predicted with moderate confidence, but more uncertainty remains in the potential behavior of polar ice sheets.
The second cause of sea level increase is the melting of land ice — such as glaciers and ice sheets.
There are more, however, including the amount of sunlight an ice sheet is able to reflect; the larger an ice sheet, the more sunlight is reflected, but the smaller an ice sheet, the more ocean there is surrounding the ice sheet to absorb the sunlight which in turn heats up the surrounding waters increasing the melt which decreases the size of the ice sheet which in turn... and so goes the cycle.
Further, the less time an ice sheet has to create new layers of ice each winter, the less strong ice is created and built into centuries of previous strong sea ice, leaving ever more vulnerable and easy - to - melt sea ice.
Apple Pastry 1 sheet of puff pastry (thawed) 2 Granny Smith Apples (peeled, cored and sliced) 2 TBS sugar 1 tsp cinnamon 2 TBS butter (or butter substitute) melted 2 TBS maple syrup Vanilla Ice Cream to serve it with
Things I changed: - cut the sugar by about half, using mostly dark brown sugar for the molasses kick - scratched the nutmeg and allspice but added about 1/3 extra of all of the other spices and also added nearly a tsp of ground cardamon - replaced the veggie oil with melted leaf lard - scratched the raisins - baked it on a deep sheet for only ~ 20 minutes - just barely until firm to the touch - then cut that sheet into three layers - replaced the icing with my own 16 ounce cream cheese, 8 ounce butter, ~ 6 ounce heavy cream, ~ 5 ounce honey, 1 tsp vanilla combo - toasted the coconut before dressing the cake.
Or just put salt on one side of the sheet of ice to see if it melts faster.
According to the Center for Remote Sensing of Ice Sheets (CReSIS), an NSF Science and Technology Center led by the University of Kansas, the melt from Greenland's ice sheet contributes to global sea level rise at a rate of 0.52 millimeters annualIce Sheets (CReSIS), an NSF Science and Technology Center led by the University of Kansas, the melt from Greenland's ice sheet contributes to global sea level rise at a rate of 0.52 millimeters annualice sheet contributes to global sea level rise at a rate of 0.52 millimeters annually.
This magma plume isn't an alternative possible cause of recent upticks in melting along the West Antarctic Ice Sheet attributed to human - generated climate change.
The plume has been a factor in the ice sheet's behavior throughout its history, and recent surges in melting are the result of all the additional heat humans have pumped into it.
Temperatures soaring above 10 °C caused more than a tenth of the island's vast ice sheet to start melting last week — a month before significant melt usually begins.
Considering that the Greenland and Antarctic ice sheets span more than 1.7 million and 14 million square kilometers, respectively, while containing 90 % of the world's freshwater ice supply, melting of ice shelves could be catastrophic for low - lying coastal areas.
Over hundreds or thousands of years, vast ice sheets can melt away, further decreasing the planet's reflectivity.
Willis is leading a new mission to study the effects of warming oceans on the melting of the Greenland Ice Sheet.
That question is central to understanding the effects of ice sheet melting on ocean water properties, circulation, and biological systems, on scales from local to basinwide.
While satellite measurements and climate models have detailed this recent ice loss, there are far fewer direct measurements of melt collected from the ice sheet itself.
Parts of the massive ice sheet once considered stable have been shown to be melting in new research
Computer model simulations have suggested that ice - sheet melting through warm water incursions could initiate a collapse of the WAIS within the next few centuries, raising global sea - level by up to 3.5 metres.»
«The influence of distant forest fires on melt events on the Greenland ice sheet is inherently challenging to demonstrate and these clear chemical results provide another line of evidence for this connection,» said Diane McKnight, a CU Boulder professor and a co-author of the study.
In comparison, it took the Jakobshavn Isbræ ice stream — a southwest Greenland region with a fast - moving glacier that has been a focal point of scientific examination of ice sheet melt — 150 years to retreat 35 kilometers, said Khan.
Maximum temperature extremes were also associated with widespread melting of the Greenland ice sheet.
Estimated changes in the mass of Greenland's ice sheet suggest it is melting at a rate of about 239 cubic kilometres (57.3 cubic miles) per year.
For example, heat waves were particularly severe, droughts were extensive in tropical forests, and melting of the Greenland ice sheet accelerated in association with shifts in the 8 - day maximum temperature.
The Greenland ice sheet occupies about 82 % of the surface of Greenland, and if melted would cause sea levels to rise by 7.2 metres.
The hope is that the cables could reveal secrets about what's happening underneath the ice sheets, especially about melting at the so - called grounding line, the place where the bottom of an ice sheet meets the slightly warmer ocean.
Today's red deer, which recolonized Europe after the ice sheet melted about 12,000 years ago, fall into three or four distinct lineages that likely correspond to separate southern regions to which the deer had retreated during the height of the ice age, Stanton says.
The ice sheet is made up of snow that falls and never melts, but rather remains year after year and is gradually compressed into ice.
Recent modelling by researchers from the Potsdam Institute for Climate Impact Research in Germany, as well as studies of past climate, suggest that the planet will soon have warmed enough to melt Greenland's ice sheet entirely — if it hasn't already become warm enough.
One way to assess the health of ice sheets is to look at their balance: when an ice sheet is in balance, the ice gained through snowfall equals the ice lost through melting and iceberg calving.
At present the ice sheet is grounded on underwater islands, which insulate some of the ice from the melting effect of the seawater upon which the rest of the sheet floats.
This allowed them to calculate the redistribution of mass on Earth's surface due to the melting of the Greenland and Antarctic ice sheets and mountain glaciers, and model the shift in Earth's axis.
The team stresses that even a little warming could cause irreversible melting of ice sheets and turn dense Amazon forests into dry savannah grassland.
Operation IceBridge, NASA's airborne survey of polar ice, is flying in Greenland for the second time this year, to observe the impact of the summer melt season on the ice sheet.
Since there are many techniques to measure the MPP, we can keep using its drift to gauge the extent of ice - sheet melting — even in between the end of the ageing GRACE mission and the launch of the next generation of gravity - measuring satellites, says Chen.
In 2015, melting spiked again to reach more than half of the Greenland ice sheet.
A hundred kilometers wide, this ice sheet, unlike most of its peers, is actually growing instead of melting, because it has slowed its flow toward the sea in recent decades.
What they found, Hansen says, is that melting ice sheets in Greenland and Antarctica could inject enough fresh water into the seas to slow the formation of two key water masses: the North Atlantic Deepwater and the Antarctic Bottom Water formations.
• In Antarctica, Greenland and other places where big ice sheets are surrounded by the ocean, sometimes big chunks of ice fall into the ocean after they have started to melt.
«Very old ice probably exists in small isolated patches at the base of the ice sheet that have not yet been identified, but in many places it has probably melted and flowed out into the ocean.»
Its location is wandering as a result of the melting of glaciers and ice sheets — a finding which suggests that monitoring the position of the poles could help us track the decline of ice sheets.
The paper also describes an atmosphere - ocean modeling study of feedback loops caused by ice sheet melting under 2 °C conditions.
Yet the darkening of Greenland around its periphery remains a source of concern because it contributes to making the ice sheet melt away faster.»
As the ice sheets melt, there will not only be more water in the oceans, but the positions of those hills and valleys will shift.
A new study says that climate - induced feedback loops could lead to a change in ocean stratification and the more rapid melting of ice sheets.
«The fact that a large portion of the western flank of the Greenland ice sheet has become dark means that the melt is up to five times as much as if it was a brilliant snow surface.»
Alaskan and the Canadian Arctic land - based glacier melt ranks with that of the Greenland Ice Sheet as important contributors to global sea - level rise that is already underway.
The Dark Zone is a literally dirty belt of the melting area — the ablation zone — of the ice sheet.
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