Sentences with phrase «sea ice cover in»

The new evidence — including satellite data showing that the average multiyear wintertime sea ice cover in the Arctic in 2005 and 2006 was nine feet thick, a significant decline from the 1980s — contradicts data cited in widely circulated reports by Washington Post columnist George F. Will that sea ice in the Arctic has not significantly declined since 1979.

This would explain the expansion of the Arctic sea ice cover in those years, according to the new study.

What the researchers did was to feed the computer with data, gradually reducing the sea ice cover in the eastern Arctic from 100 percent to 1 percent in order to analyse the relative sensitivity of wintertime atmospheric circulation.

A new study for the first time found links between the rapid loss of snow and sea ice cover in the Arctic and a recent spate of exceptional extreme heat events in North America, Europe, and Asia.

Regionally, we expect a more reduced sea ice cover in the East Siberian / Alaskan regions compared to the Atlantic facing region (Svalbard, Franz Josef)

The high probability of above average temperature in the Barents and Kara seas is a response to the low sea ice cover in the forecasts.

Four or five million years ago, the extent of sea ice cover in Arctic was much smaller than it is today.

The average sea ice cover in February was 5.66 million square miles (14.66 million square kilometers), the seventh - lowest on record for the month.

Ola M. Johannessen, Elena V. Shalina, Martin W. Miles, «Satellite evidence for an Arctic sea ice cover in transformation,» Science 286:1937 - 1939 (3 December 1999).

Sea ice cover in the Arctic — which should be reaching its maximum in a couple of weeks — last month stood at a record low for the second consecutive month.

For Core PS2200 - 5, relative abundance of ostracode species Acetabulastoma arcticum, indicative for perennial sea ice cover in the central Arctic Ocean46, are shown (cf., Supplementary Fig. 8).

The new studies, which are both published in Nature Climate Change, focus in on how efforts to curb climate change could affect summer sea ice cover in the Arctic.

Bottom line: Barents Sea polar bears are loyal to this region because the eastern portion has the habitat they require to thrive even when sea ice cover in the western portion essentially disappears for thousands of years at a time.

Unprecedented warm temperatures lead to the loss of more than half of the sea ice cover in the Bering Sea in two weeks, resulting in record lows for Arctic Ocean sea ice extent for the month of February.

The eastern Barents Sea (located in Russian territory), as defined by the Polar Bear Specialist Group (see map below), provides ample habitat for polar bears to thrive despite extended fluctuations in seasonal sea ice cover in the western portion.

«In light of the above findings, it appears that sea ice cover in the Bohai Sea is not quite as sensitive to CO2 - induced global warming as climate model projections / theory suggest it should be.

Cambridge ocean physicist Peter Wadhams said receding sea ice cover in the Arctic has allowed summer temperatures in the East Siberian Sea to rise several degrees above freezing.

the historic variations of the sea ice cover in the Arctic.

A central topic will be teleconnections in the climate system, i.e. how a change in climate in one part of the globe (e.g. temperatures in the Atlantic or shrinking sea ice cover in the Arctic) can influence climate on other parts of the globe (e.g. Eurasian winter temperatures), and how we can use this information to improve regional climate prediction and therefore regional climate service.

Satellite evidence for an Arctic sea ice cover in transformation.

Investigation of sea ice concentrations support this hypothesis with the emergence of lower ice concentration bands in the southern Beaufort Sea in May 2012 within an increasingly heterogeneous sea ice cover in the Arctic.

Researchers also tracked sea ice cover in the Arctic over these two periods and found that the ice declined substantially from the first to the second period.

Sea ice physicists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), are anticipating that the sea ice cover in the Arctic Ocean this summer may shrink to the record low of 2012.

Researchers have previously suggested that extreme weather in the midlatitudes might be linked to climate change's impacts on the Arctic (SN Online: 12/2/11), particularly the dramatically decreased sea ice cover in the Arctic Ocean.

Not exact matches

Indeed, Arctic change in the last two decades has been profound — not just dwindling sea ice, but also noticeably increased precipitation, and thus snow cover, over Eurasia.

«Northern Hemisphere snow cover has decreased and Arctic Sea ice has been at record low levels in the past three years.»

The result: Surface temperatures increased rapidly, especially in the Arctic, which saw its September sea ice cover shrink by 25 percent.

That's important, she said, because cloud cover influences when in spring sea ice begins melting.

«This shift is characterized by the persistent decline in the thickness and summer extent of sea - ice cover and by a warmer, l

In August, NASA launched ARISE, a program to measure how cloud cover may be accelerating sea ice melt around the pole.

Capt. Roald Amundsen, the discoverer of the Northwest Passage, left Norway in June, 1910, in the «Fram,» seemingly with the intention of sailing around Cape Horn, however, he sailed to the westward across the South Pacific, and made a landing at whale Bay on the ice sheet covering Ross Sea.

The biggest waves seen in northern sea ice show how this vital cover can be crushed much faster than expected

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.

Up until 2007, sea ice systematically fluctuated between extensive cover in winter and lower cover in summer.

Some researchers say that the ice sheet must have melted during the Pliocene, allowing trees to cover the mountains and diatoms to thrive in the seas.

The geologic record shows that the differences in ice cover, sea level and precipitation as well as in plant and animal populations were quite dramatic between the ice ages and the warm interglacials.

In late June, the U.S. Government Accountability Office released an assessment of how the consequences of climate change, from rising temperatures and sea levels to changes in precipitation patterns and sea ice cover, might impact the militarIn late June, the U.S. Government Accountability Office released an assessment of how the consequences of climate change, from rising temperatures and sea levels to changes in precipitation patterns and sea ice cover, might impact the militarin precipitation patterns and sea ice cover, might impact the military.

Willerslev thinks the Western Stemmed projectiles were made by the first migrants into America, who came in by sea on the west coast while the continental interior was still covered in ice.

«One societally relevant implication is that more storminess probably means more erosion of Arctic coastlines, especially in tandem with declines in buffering sea ice cover and increases in thawing coastal permafrost,» concluded Dr. Vavrus.

Within a few hundred years sea levels in some places had risen by as much as 10 meters — more than if the ice sheet that still covers Greenland were to melt today.

«Polar regions have been changing very rapidly, providing data for our projections on sea ice, snow cover, ice sheets and sea level rise,» says David Vaughan of the British Antarctic Survey in Cambridge, UK, the lead author of the cryosphere chapter.

This past September the National Snow and Ice Data Center in Boulder, Colo., which collects polar and ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 19Ice Data Center in Boulder, Colo., which collects polar and ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 19ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 19ice covering the Arctic Ocean than at any time since satellite measurements began in 1979.

In addition to the thickness of the snow cover on top of the sea ice, the buoys also measure the air temperature and air pressure.

AWI researchers observed a considerable decrease in the thickness of the sea ice as early as the late summer of 2015, even though the overall ice covered area of the September minimum ultimately exceeded the record low of 2012 by approximately one million square kilometres.

«If there were a link, it would be more likely to occur in fall [when the Arctic sea ice is at a low and the region is warm] than it would in January [when the Arctic is ice - covered and cold], so from that point of view, it's not a compelling candidate at this time of year,» Hoerling said.

They then used the satellite record of Arctic sea ice extent to calculate the rates of sea ice loss and then projected those rates into the future, to estimate how much more the sea ice cover may shrink in approximately three polar bear generations, or 35 years.

Ice - covered sea areas in the Arctic Ocean during summer have nearly halved since the 1970s and 1980s, raising alarm that the ocean is shifting from a multiyear to a seasonal ice zoIce - covered sea areas in the Arctic Ocean during summer have nearly halved since the 1970s and 1980s, raising alarm that the ocean is shifting from a multiyear to a seasonal ice zoice zone.

Arctic sea ice cover grows each winter as the sun sets for several months, and shrinks each summer as the sun rises higher in the northern sky.

The scientists were able to use a test scenario in the Greenland Sea to demonstrate that ALES + returns water levels for ice - covered and open ocean regions which are significantly more precise than the results of previous evaluation methods.

«It may even be possible to predict sea ice cover a year in advance with high - quality observations of sea ice thickness and snow cover over the whole Arctic,» said Cecilia Bitz, co-author and professor of atmospheric sciences at the University of Washington.