Sentences with phrase «sea ice flowing»

Updated Ten days ago, the grinding slow - motion rivers of floating sea ice flowing around Canada's Arctic archipelago claimed the lives of Marc Cornelissen and Philip de Roo, seasoned Dutch polar trekkers combining an adventurous spirit with environmental activism and citizen science.

As for Antarctica — there are many differences, not least the heat content of the Southern Oceans, the isolation of the continent, mostly divergent sea ice flow, etc..

For example, winds could influence where sea ice flows, potentially compacting what is left, or further breaking up already tenuous chunks.

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.

Not exact matches

UAF has worked extensively with both institutional and commercial partners in Alaska and in recent years, using drones to monitor sea lion populations in the Aleutian Islands, conduct ice flow and environmental surveying missions for NASA and National Oceanic and Atmospheric Administration, inspect pipelines for oil and gas giant BP and assist a Russian tanker during a dangerous late - season fuel delivery to the remote Alaskan outpost of Nome.

The discovery is incredibly important, though, because it shows scientists exactly why the most vulnerable parts of Greenland's ice are melting so quickly — each summer since 1997, melting ice that would usually be captured and refrozen the next winter is now flowing straight out to sea.

Up north when somone is old and sick we put them on an ice flow and give it a shove out to sea.

The deep grooves under the massive ice sheet could facilitate flow into the ocean, which suggests sea level rise estimates for this century need to be revised upwards

For example, Kangerdlugssuaq glacier has lost mass from melting and, in its thinner form, has less weight to speed the flow of its ice toward the sea.

Studying surging glaciers could also offer insights into grander - scale ice flows with global consequences: the movements of the ice sheets in Antarctica and Greenland, which can change abruptly, altering the ice discharges that affect sea level.

The floating platforms of ice that ring the coast are thinning, glaciers are surging toward the sea, meltwater is flowing across the surface, fast - growing moss is turning the once shimmering landscape green and a massive iceberg the size of Delaware broke off into the ocean in July of 2017.

As the ice flows faster and approaches the sea, the surface gets stretched out and cracks open.

What matters for sea - level rise is the addition of ice from land into the ocean, however it's the ice shelves that hold off the flow of grounded ice toward the ocean.

When floating ice shelves disintegrate, they reduce the resistance to glacial flow and thus allow the grounded glaciers they were buttressing to significantly dump more ice into the ocean, raising sea levels.

After further analysis of the data, the scientists found that although a strong El Niño changes wind patterns in West Antarctica in a way that promotes flow of warm ocean waters towards the ice shelves to increase melting from below, it also increases snowfall particularly along the Amundsen Sea sector.

Since ice shelves act like plugs, removing them lets inland glaciers flow faster into the ocean, and that will raise sea levels.

Changes in flow patterns of warm Pacific Ocean air from the south were driving earlier spring snowmelt, while decreasing summer sea ice had the greatest influence on later onset of snowpack in the fall.

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.

the south - bound expedition had cleared that vast plain of floating ice which flows down from the great mountains of the interior and covers the southern part of Ross Sea throughout an area above 20,000 square miles with an ice sheet approximately 800 feet in thickness, and had begun to climb the heights which form the mountainous embayment at the head of Ross Sea.

Now, warming seawater intruding underneath has loosened the glaciers» grip on bedrock, speeding their flow toward the sea and causing increasing amounts of ice to break off into the ocean.

Glaciers around the world are melting and contributing to sea level rise, but scientists still don't quite understand how exactly glaciers give birth to icebergs as they flow into the ocean and lose ice.

All told, if the eastern and western Antarctic ice shelves were to melt completely, they would raise sea levels by as much as 230 feet (70 meters); the collapse of smaller shelves like Larsen B has sped up the flow of glaciers behind them into the sea, contributing to the creeping up of high tide levels around the world.

But because the surrounding ocean would have been warmer, and stabilizing sea ice less abundant, the massive East Antarctic ice sheet may have contributed to higher sea levels by flowing more quickly towards the ocean.

Subglacial lakes are likely to influence the flow of the ice sheet, impacting global sea level change.

All over the world, from the Arctic to the Antarctic and from Alaska to the Andes, ice is melting and flowing into the sea.

Around 11,000 years ago, as the last ice sheets retreated from Norway and the Norwegian Sea, Atlantic water flowed in and warmed the bottom by about 9 degrees Fahrenheit.

In fact, learning about the lakes and rivers could shed light (albeit from a very dark place) on weighty matters ranging from ice - sheet stability — how much do the lakes enhance the flow of ice toward the sea?

CLIMATE CALAMITIES As ice shelves on the Southern Antarctic Peninsula weaken, glaciers flow faster into the sea.

In recent years, melting sea ice has allowed more of the Pacific water to flow through the Bering Strait into the Arctic Ocean.

A glaciologist rather than a biologist, he wanted to investigate a question critical to climate change: Do subglacial rivers and lakes lubricate the movement of ice over land — and might they somehow accelerate a glacier's flow into the ocean, triggering rapid sea level rise?

As global warming affects the earth and ocean, the retreat of the sea ice means there won't be as much cold, dense water, generated through a process known as oceanic convection, created to flow south and feed the Gulf Stream.

Hawkings and his collaborators spent three months in 2012 and 2013 gathering water samples and measuring the flow of water from the 600 - square - kilometer (230 - square - mile) Leverett Glacier and the smaller, 36 - square - kilometer (14 - square - mile) Kiattuut Sermiat Glacier in Greenland as part of a Natural Environment Research Council - funded project to understand how much phosphorus, in various forms, was escaping from the ice sheet over time and draining into the sea.

It was thought that the water quickly flowed between ice and rock and out to sea, with little impact on the bottom ice layers.

The warm Atlantic water continued to flow into the icy Nordic seas during the coldest periods of the last Ice Age.

But an ice shelf is thought to act as a «cork in the bottle,» damming the flow of the land - based glacier that slowly feeds the shelf in the sea.

«It is widely thought that during cold periods of the last Ice Age the warm Atlantic water had stopped its flow into the Nordic Seas.

In a finding offering another sea - level rise warning, scientists yesterday reported the existence of deep, canyon - like valleys in the bedrock underneath the Greenland ice sheet that could facilitate the extensive flow of ice into the ocean.

The team investigated the trajectories of sea ice drifting in the ocean and saw a pattern of ice — and hence water — flowing northward from the vast northern coast of Russia toward the middle of the Arctic Ocean, where the radium concentrations had increased.

As a result, the ice shelf is likely to both thin and flow faster, the researchers note — and eventually, that could allow the glacier to slide into the sea.

Not only are ice sheets in Greenland and Antarctica breaking up faster than scientists expected, but more of their melt water is flowing into oceans, he said, which will raise sea levels by 3.3 feet (1 meter) by 2100.

This has to do with the physical processes that affect the way ice in a glacier moves and flows out to sea.

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.»

Second, melting land ice flows into the ocean, also increasing sea level across the globe.

Since so much of the ice sheet is grounded underwater, rising sea levels may have the effect of lifting the sheets, allowing more - and increasingly warmer - water underneath it, leading to further bottom melting, more ice shelf disintegration, accelerated glacial flow, and further sea level rise, and so on and on, another vicious cycle.

Based on a model that excludes ice sheet flow due to a lack of basis in published literature, it is estimated that sea level rise will be, in a low scenario, 18 to 38 cm (7 to 15 inches) and in a high scenario, 26 to 59 cm (10 to 23 inches).

Co-author Dr Ivan Haigh, lecturer in coastal oceanography at the University of Southampton and also based at NOCS, adds: «Historical observations show a rising sea level from about 1800 as sea water warmed up and melt water from glaciers and ice fields flowed into the oceans.

But also: the geography below the glacier will determine what, if anything, will retard the flow of all that ice into the sea.

Some scientists assessing the recent acceleration of ice flows propose that the rates of increase can't be sustained long enough to get a truly disastrous rise in seas by 2100 from a warming Greenland.

Reinhard was awarded for his work in investigating how the potential disintegration of Antarctic floating ice shelves could contribute to increased ice flow from inland glaciers, and a resulting rise in global sea levels.

But if the shelf collapses, then glacial ice could flow into the sea unabated and contribute to rising sea levels.