Sentences with phrase «of warm ocean currents»

This fusion of warm ocean currents,

Although the map has revealed that some glaciers are thicker than previously thought, the visualisation has also highlighted the danger of warmer ocean currents, which can work up underneath the ice and break it apart.

Not exact matches

Changes in ocean currents are also lead to upwelling of warm water, which also increases evaporation — and thus snow.

Sensors that have plumbed the depths of Arctic seas since 2002 have found warm currents creeping up from the Atlantic Ocean and helping drive the dramatic retreat of sea ice there over the last decade.

In the current context of global warming it is important to assess the impacts that changes in ocean and climate may have on Antarctica, and reconstructing past climate fluctuations provides vital information on the responses and possible feedback mechanisms within the climate system.

The causes of the warming remain debated, but Liu and his team homed in on the melting glacial water that poured into oceans as the ice receded, paradoxically slowing the ocean current in the North Atlantic that keeps Europe from freezing over.

A system of ocean currents, popularly referred to as the «Great Ocean Conveyor,» brings warm waters to the North Atlaocean currents, popularly referred to as the «Great Ocean Conveyor,» brings warm waters to the North AtlaOcean Conveyor,» brings warm waters to the North Atlantic.

«Using a numerical climate model we found that sulfate reductions over Europe between 1980 and 2005 could explain a significant fraction of the amplified warming in the Arctic region during that period due to changes in long - range transport, atmospheric winds and ocean currents.

The incoming water, part of the global conveyor belt of currents circulating throughout the oceans, is relatively warm and salty compared with the rest of the Southern Ocean.

The simulations suggest that over decades, these warming events dramatically perturb the ocean surface, affecting the flow of the Atlantic Meridional Overturning Circulation, a system of currents that acts like a conveyor belt moving water around the planet.

If you decouple that ice from where it's grounded — something that currents of warming water, already circulating around the Antarctic coast, could do — then water could flow beneath the inland ice and lubricate its slide into the ocean.

Some glaciers on the perimeter of West Antarctica are receiving increased heat from deep, warm ocean currents, which melt ice from the grounding line, releasing the brake and causing the glaciers to flow and shed icebergs into the ocean more quickly.

The Arctic took another 3,000 - 4,000 years to warm this much, primarily because of the fact that the Northern Hemisphere had huge ice sheets to buffer warming, and the fact that changes in ocean currents and Earth's orbital configuration accelerated warming in the south.

Map of current land and ice separating the Weddell and Ross seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's oceans — from the warmest of tropical seas to the deep, dark reaches around hydrothermal vents.

They found that adding five years of strong trade winds created powerful ocean currents that buried the warm surface water, bringing cooler water to the surface.

He warned on Tuesday that warming ocean currents east of Greenland were melting ice in the seabed.

Velicogna and her colleagues also measured a dramatic loss of Greenland ice, as much as 38 cubic miles per year between 2002 and 2005 — even more troubling, given that an influx of fresh melt water into the salty North Atlantic could in theory shut off the system of ocean currents that keep Europe relatively warm.

The Arctic Ocean continually loses thick, old ice, the kind that easily survives a warm summer, as currents sweep it out the Fram Strait, east of Greenland.

Our global climate models zoom down to finer and finer resolutions; our satellites reveal remote corners of the globe; we increase our understanding of the response of giant ice sheets and deep ocean currents to a warming planet.

But as the two shelves are on opposite sides of the peninsula and subject to different ocean currents, he says, «it was probably due to atmospheric warming».

Under normal conditions, the trade winds and ocean currents in the tropical Pacific travel from the Americas to Asia, maintaining a pool of very warm water and a related area of intense tropical rainfall around Indonesia.

Starting from the same kernel of scientific truth as did The Day After Tomorrow — that global warming could disrupt ocean currents in the North Atlantic — a study commissioned by the Pentagon, of all organizations, concluded that the «risk of abrupt climate change... should be elevated beyond a scientific debate to a U.S. national security concern.»

Schimdt has found evidence that warm ocean currents and convective forces beneath Europa's frozen shell can cause large blocks of ice to overturn and melt, bringing vast pockets of water, sometimes holding as much liquid as all of the Great Lakes combined, to within several kilometers of the moon's icy surface.

Extreme weather does not prove the existence of global warming, but climate change is likely to exaggerate it — by messing with ocean currents, providing extra heat to forming tornadoes, bolstering heat waves, lengthening droughts and causing more precipitation and flooding.

El Nino's mass of warm water puts a lid on the normal currents of cold, deep water that typically rise to the surface along the equator and off the coast of Chile and Peru, said Stephanie Uz, ocean scientist at Goddard Space Flight Center in Greenbelt, Maryland.

Unexpectedly, this more detailed approach suggests changes in Antarctic coastal winds due to climate change and their impact on coastal currents could be even more important on melting of the ice shelves than the broader warming of the ocean.

Persistent mass of warm water is reshuffling ocean currents, marine ecosystems, and inland weather.

«Our research indicates that as global warming continues, parts of East Antarctica will also be affected by these wind - induced changes in ocean currents and temperatures,» Dr Jourdain said.

«When we included projected Antarctic wind shifts in a detailed global ocean model, we found water up to 4 °C warmer than current temperatures rose up to meet the base of the Antarctic ice shelves,» said lead author Dr Paul Spence from the ARC Centre of Excellence for Climate System Science (ARCCSS).

«Even in this current warming climate, some mountains are so high that the temperatures are still below freezing, and the warming ocean may provide more precipitation to drive some of the glaciers to advance,» Batbaatar said.

The warm waters give up their heat in the bitterly cold regions monitored by OSNAP, become denser, and sink, forming ocean - bottom currents that return southward, hugging the perimeter of the ocean basins.

The science team obtained vital information about the physical characteristics within one large warm - water eddy, which likely originated from the North Brazil Current, and analyzed its potential influence on sub-surface ocean conditions during the passage of tropical cyclones.

A March study shows that one large swath of the ice sheet sits on beds as deep as 8,000 feet below sea level and is connected to warming ocean currents.

For example, contrary to their assertion, current conditions in the eastern Pacific are almost the antithesis of projected conditions for most reef systems under global warming and ocean acidification.

While the glaciers in this region seemed stable, it turns out warming ocean currents have been melting the underside of the ice.

That's because a current of cold ocean water moves from north to south along the West Coast, cooling the coastal Pacific and removing the threat of hurricanes, which form only when low pressure systems siphon off the energy from warm ocean water.

One of the most outstanding and diverse coral reefs in the world is found in the Ryukyu Archipelago, a group of subtropical islands and islets belonging to Japan and blessed by the warm Kuroshio ocean current.

Climate models do not predict an even warming of the whole planet: changes in wind patterns and ocean currents can change the way heat is distributed, leading to some parts warming much faster than average, while a few may cool, at least at first.

They underwent rapid collapse through calving of vast armadas of icebergs and undercutting of the ice margin by warm ocean currents.»

This study also offers a slice of pterosaur life history that is out of reach of fossil evidence, suggesting that the reptiles lived within easy access of warm thermal wind currents near open spaces of land or near the ocean.

«The current sea urchin fishery is experiencing existential stressors of regional warming, ocean acidification, and hypoxia.

This shift strengthens the ocean currents that bring warm, salty water to the surface, where it accelerates the melting of Antarctic ice.

So the report notes that the current «pause» in new global average temperature records since 1998 — a year that saw the second strongest El Nino on record and shattered warming records — does not reflect the long - term trend and may be explained by the oceans absorbing the majority of the extra heat trapped by greenhouse gases as well as the cooling contributions of volcanic eruptions.

El Niño — a warming of tropical Pacific Ocean waters that changes weather patterns across the globe — causes forests to dry out as rainfall patterns shift, and the occasional unusually strong «super» El Niños, like the current one, have a bigger effect on CO2 levels in the atmosphere.

Comparing disease statistics with climate data, he found that the outbreaks roughly coincided with El Niño, the warm Pacific Ocean current that brings higher temperatures and rainfall to this part of Peru.

Given the strength of the Hurst coefficients — something we all agree on — is it not possible that a large portion of the current warming trend is a product of internal climate variability, as mediated by complex dynamics of ocean circulation?

Just how rapid is the current rate of warming of the ocean?

MHW intensity between 1982 — 1998 and 2000 — 2016 increased in over 65 % of the global ocean, most notably in all five western boundary current regions, where the mean warming has been considerably faster than the global average39, and most mid-latitude ocean basins (Fig. 1e).

Gray believes that the increased atmospheric heat — which he calls a «small warming» — is ``... likely a result of the natural alterations in global ocean currents which are driven by ocean salinity variations.»

This small warming is likely a result of the natural alterations in global ocean currents which are driven by ocean salinity variations.