Sentences with phrase «as sea ice»

Extensive snow showers covering wide areas may be mistaken as sea ice when the sea temperatures are cold enough to prevent snow flakes from melting.

Thus as sea ice expands in a cooler climate, the high - latitude oceanic heat loss to the atmosphere is inhibited, the thermohaline circulation weakens, and the sinking regions move equatorward, leading to a shallower and weaker deep circulation.

«We are also seeing hunting becoming more dangerous as the sea ice changes.»

This location on the Chukchi Sea, just north of Point Lay, has attracted several thousand animals in past years as sea ice retreats.

«It ranges from warming to cooling to warming again, as sea ice decreases.»

And as the sea ice advanced, the winds shifted into a west - east pattern.

The National Science Foundation - funded study appears in the journal Proceedings of the National Academy of Sciences 45 years after atmospheric scientists Mikhail Budyko and William Sellers hypothesized that the Arctic would amplify global warming as sea ice melted.

For starters, as sea ice melts, Arctic waters warm, greatly altering ocean processes, which in turn have an effect on Arctic and global climate, says Michael Steele, senior oceanographer at the University of Washington, Seattle.

Mark Serreze, the director of the NSIDC, said that making a clear separation between manmade and natural factors is «very difficult,» since as the sea ice thins, it become more vulnerable to melting spurred by weather patterns.

«As the sea ice retreats in summer the ocean warms up (to 7C in 2011) and this warms the seabed too.

As the sea ice retreats in summer the ocean warms up (to +7 ºC in 2011) and this warms the seabed too.

Thus, sea ice has melted at an unprecedented rate and is now caught in a vicious cycle known as the ice - albedo feedback: as sea ice retreats, sunshine that would have been reflected into space by the bright white ice is instead absorbed by the ocean, causing waters to warm and melt even more ice.

As sea ice melts, Earth's overall albedo, the fraction of energy reflected away from the planet, decreases.

Serreze explained that as sea ice declines because of warmer temperatures, the loss of ice is likely to lead to still - further ice losses.

As this sea ice chart for 18 April 2018 shows, ice this month has been virtually absent from the west and north coasts of the Svalbard Archipelago, while Franz Josef Land to the east is surrounded by highly concentrated pack and land - fast ice.

As sea ice melts, darker ocean water is exposed; the additional energy absorbed by the darker surface then melts more ice, setting in motion a self - reinforcing feedback.

As sea ice thins, and becomes more fractured and labile, it is likely to move more in response to winds and currents so that polar bears will need to walk or swim more and thus use greater amounts of energy to maintain contact with the remaining preferred habitats.

There was also less sea ice during this time (1887 - 1945), as the sea ice cover disappeared 1.1 month sooner than it does today.

During the fall, the heat that was added to the oceans gets released into the atmosphere as sea ice reforms, and this added heat is bound to change weather patterns somehow (this is a process known as «Arctic Amplification»).

As the sea ice melts, the dark oceans absorb more of the suns rays than the bright ice (which reflected them), and the process accelerates.

Monaghan et al. further note «recent literature suggests there has been little overall change in Antarctic near - surface temperature during the past 5 decades» and «the absence of widespread Antarctic temperature increases is consistent with studies showing little overall change in other Antarctic climate indicators during the past 50 years such as sea ice area and snowfall.»

As sea ice is lost to a warming climate, bottom - dwellers are flourishing and storing an unexpected amount of carbon, according to David Barnes of the British Antarctic Survey (BAS).

This accounts for 65 % of total sea level rise over the last 4 decades with the other components being land - based ice melt in antarctica (yes, land based ice levels are dropping even as sea ice levels are expanding) greenland and land - based glaciers.

On November 30th, diplomats from the Department of State concluded 10 years of negotiations by finalizing a multilateral agreement to protect the central Arctic Ocean from overfishing, as sea ice in the region dwindles.

These contributions are valuable for understanding initial conditions as well as sea ice dynamics throughout the season.

Any field - or ship - based updates on ice conditions in the different regions such as sea ice morphology (e.g., concentration, ice type, floe size, thickness, snow cover, melt pond characteristics, topography), meteorology (surface measurements) and oceanography (e.g., temperature, salinity, upper ocean temperature).

Sea ice volume has decreased, even as sea ice extent has not.

We refer to this field as a sea ice probability (SIP).

As the sea ice forms it starts expressing the salt out of its crystalline structure.

Russia is a major source of soot in the Arctic and Russian soot declined dramatically after the break - up of the former Soviet Union — just as sea ice decline was starting to accelerate.

It's like the temperature pause, only the pause has more going for it as the sea ice recovery only lasted 2 years and it's all over.

As far as sea ice trends are concerned, both the Antarctic and the Arctic lose most of their sea ice and regain it again each year.

As sea ice extents drop, less ice survives from year to year.

Polar bears move around as sea ice habitat changes — this is what resilience looks like Posted April 14, 2014

As sea ice declines, it becomes thinner, with less ice build - up over multiple years, and therefore more vulnerable to further melting.15 Models that best match historical trends project northern waters that are virtually ice - free by late summer by the 2030s.25, 26,12 Within the general downward trend in sea ice, there will be time periods with both rapid ice loss and temporary recovery, 27 making it challenging to predict short - term changes in ice conditions.

The satellite readings show that as sea ice forms early in the season, wind blowing off the cold Antarctic ice cap pushes it offshore and northward.

Killer whales departed the Arctic Archipelago a few days before the formation of heavy (+50 %) ice cover in the area, which suggests that killer whales seasonally leave the eastern Canadian Arctic as sea ice advances (Matthews et al. 2011).

Both Russia's Northern Sea Route and Canada's fabled Northwest Passage offer faster routes than comparable southern routes, which means that more global shipping traffic will begin to pass along both routes as sea ice retreats.

[Open water with just 15 percent of floating ice debris, still counts as sea ice extent - not as area though.]

The Arctic is warming faster as the sea ice disappears.

As sea ice melts, more water is exposed, which traps more heat.

This hypothesis would be in line with the biomarker data from the central Arctic Ocean sites PS2200 - 5 and PS51 / 038 -3 pointing to a more closed and thick ice cover that has prevented both phytoplankton as well as sea ice algae production (Figs. 2a, b, 3b).

This has obvious implications for our ability to predict events in the tropics, such as hurricanes and drought, and at high latitudes, such as sea ice and ice sheet melting (with sea level rise).

«As sea ice melts, the Arctic waters absorb more heat in the summer, having lost the reflective powers of vast packs of white ice.

If cloud cover increases as sea ice decreases, that could offset the direct effect of the SIAF, especially if clouds increase in summer, when there is the most sun and the most sea - ice loss.

«We are off to a great start collecting a timely and unique dataset to help better understand the potential influence of clouds on the Arctic climate as sea ice conditions change,» said William Smith, ARISE principal investigator at NASA's Langley Research Center in Hampton, Virginia.

Often, at least one component (such as sea ice) is two - dimensional.

As they warm and as the sea ice retreats, larger areas are freed for invasion by major blooms of algae and other microbes.

Sea ice extent only provides part of the picture, as some sea ice is much thicker or older than others.

Their scientific cruises on the shallow continental shelf occurred as sea ice in the Arctic Ocean was rapidly melting and as northern Siberia was earning the distinction — along with the North American Arctic and the western Antarctic Peninsula — of warming faster than any place on Earth.