Sentences with phrase «sea ice in»

Sea ice in the East Siberian and Laptev Seas is predominantly first - year ice (Beaufort Sea Region, Figure 1).

Thickness surveys and drifting buoys that are part of the Arctic Observing Network (AON) suggest that much of the growth of first - year sea ice in the Pacific sector approaches an end - of - season thickness of around 1.7 m, independent of the starting time of freeze - up in the fall (H. Eicken, personal communication).

When there is evidence for the growth of a large ice sheet on Antarctica or on Greenland or the growth of sea ice in the Arctic Ocean, we see evidence for a dramatic change in carbon dioxide levels over the last 20 million years.

The June outlook reflects the fact that winds during the last two weeks have reversed the flow of the buoys and sea ice in the Beaufort Gyre and Transpolar Drift Stream, slowing export and sequestering sea ice in the Arctic.

The June Outlook for arctic sea ice in September 2010 shows reasonable arguments for either a modest increase or decrease in September 2010 sea ice extent compared to the last two years (5.4 million square kilometers in 2009 and 4.7 million square kilometers in 2008).

Furthermore, the Arctic has warmed more than twice as fast as the global average, a phenomenon known as Arctic amplification, and stimulated by the combined increasing Arctic temperatures and rapid loss of sea ice in all seasons along with declining snow cover in the spring and early summer.

In 2007, the extent of sea ice in the Arctic declined rapidly.

Rhetorically, I have asked before when the Straits of Magellan and Cape Horn will be blocked by Antarctic sea ice in September.

Results show that the globally and annually averaged radiative forcing caused by the observed loss of sea ice in the Arctic between 1979 and 2007 is approximately 0.1 W m − 2; a complete removal of Arctic sea ice results in a forcing of about 0.7 W m − 2, while a more realistic ice - free - summer scenario (no ice for one month, decreased ice at all other times of the year) results in a forcing of about 0.3 W m − 2, similar to present - day anthropogenic forcing caused by halocarbons.

It was loading up equipment and goods for a long leg towards an area of increasingly thinning sea ice in the High Arctic Ocean at 87 ° N.

The winter sea ice in the Antarctic is increasing slowly and now has reached an extent similar to what it was in 1914 when Shacleton was prevented from reaching the Rohnne Ice Shelf because of pack ice.

Arctic sea ice in 2017 had record - low extents for much of the first five months of the year, though it recovered a bit after that to show only the eight lowest summer minimum on record.

But Julienne Stroeve with the National Snow and Ice Data Center says the extent of sea ice in the far north this month wasn't quite small enough to break the record set in 2012.

Loss of sea ice will also be addressed, and the report will discuss the accelerating loss of sea ice in the Arctic and the slight increase of ice seen in the Antarctic.

Only one model could simulate recent sea ice in the western Bering and Barents sea.

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.

Nor did the BRT discuss research detailing how the loss of sea ice in the 1990s was not caused by warmer air, but by a shift in the Arctic Oscillation resulting in below - freezing winds that pushed thick insulating ice out into the Atlantic.

This contrasts with declining sea ice in the Arctic and is due do a variety of factors such as changing wind patterns.

For example, scientists at the University of Colorado theorize that the decrease in sea ice in the Arctic could reduce snowfall in Colorado because Arctic cold fronts would be less intense.

These flights are part of NASA's Operation IceBridge, an airborne campaign that studies changes to land and sea ice in the Arctic and Antarctic.

A typical summer now has nearly half as much sea ice in the Arctic as it had in the 1970s and 1980s.

They also explain how the «sea ice extent around Antarctica» is very different from the sea ice in the Arctic because the Arctic is not covered by land, but by ocean, albeit mostly frozen most of the time, whereas Antarctica is a vast continent covered by massive ice sheets with the South Pole at its center.

Lawrence was lead author of a paper in Geophysical Research Letters, also published in June, that documented the consequences of the record loss of Arctic sea ice in 2007.

Coinciding with cycles of reduced sea ice, glaciers on the island Novaya Zemlya in the Barents Sea, also underwent their greatest retreat around 1920 to 1940.61 After several decades of stability, its tidewater glaciers began retreating again around the year 2000, but at a rate five times slower than the 1930s.47 The recent cycle of intruding warm Atlantic water45 is now waning and if solar flux remains low, we should expect Arctic sea ice in the Barents and Kara seas to begin a recovery and Arctic glaciers to stabilize within the next 15 years.

On September 16, 2012, the extent of sea ice in the Arctic Ocean dropped to 3.41 million square kilometers (1.32 million square miles).

This lack of data limits our ability to establish the role of sea ice in large - scale reorganizations of ocean circulation and carbon sequestration entering a glaciation.

For more information on Arctic sea ice in 2012, visit NSIDC's Arctic Sea Ice News and Analysis blog and the NASA news release on the observation.

Arctic sea ice in 2016 was 430,000 mi ² (1.12 million km ²) below the 1981 - 2010 average, and 5,019 mi ² (13,000 km ²) below last year's record low.

A new paper The central role of diminishing sea ice in recent Arctic temperature amplification (Screen & Simmonds 2010)(here's the full paper) examines this question.

For some unexplained reason there have been a large number of coronal holes on the surface of the sun, in low latitude positions during solar magnetic cycle 24, however due to the reduction in the solar wind density the solar wind bursts have less effect on cloud modulation which explains why there has suddenly be an increase sea ice in the Antarctic, a recovery of sea ice in the Arctic, and an inhibiting of the formation of El Niño events.

The evidence is piling up every day that the world is now getting cooler instead of warmer, the oceans are now cooling instead of warming, the ice is returning to the Arctic rather than receding, the sea ice in the Antarctic is at record levels, and that rising sea levels have moderated.

[3] Summer sea ice in September thinned 85 percent (from 9.8 feet to 1.4 feet, or 3 to 0.43 m) between 1975 and 2012.

On March 24, 2016, just four days after the end of astronomical winter [6]-- which saw temperatures from 11 to 14 °F above average in the central Arctic — sea ice in the Arctic hit 5.607 million mi ² (14.52 million km ²), its lowest annual maximum since records began in 1979.

The overall polar bear population appears stable, but disappearing sea ice in the Arctic is widely believed to pose a long - term threat to the species.

Longer term sea ice in Antarctica has been increasing, except for a recent short term fluctuation.

His research includes studies of the growth, evolution and properties of sea ice in the Arctic and Antarctic.

He is also one of the authors of The Meaning of Ice, a recent book about sea ice in three Arctic communities.

Numerous recent studies based on both observations and model simulations indicate that reduced Barents - Kara sea ice in late fall favors a strengthened and northwestward expansion of the Siberian high, increased poleward heat flux, weakened polar vortex, and ultimately a negative AO.

The models missed the changes in Arctic Sea Ice in the first 1C of warming.

While we didn't have satellites monitoring Arctic sea ice in the 1920s or 1930s or 1940s, all available data indicate that Arctic sea ice was much, much more extensive during that timeframe than today.

Over the Arctic Ocean and neighboring seas conventional temperature obser vations are often of uncertain quality, however, owing to logistical obstacles in making measurements over sea ice in harsh environmental conditions.

Why is there suddenly record sea ice in the Antarctic and «recovery» of sea ice, including multi year sea ice in the Arctic?

The sea ice in the Siberian Arctic is peaking, its effect on the meridional temperature gradient strong, promoting increased zonal flow of large - scale winds, which advect warm air and moisture over the Eurasian continent from the Atlantic and disrupt vertical stratification near the surface and promote high cloudiness, both of which lead to increasing temperatures — greatest at low altitudes and high latitudes.

Role for Eurasian Arctic shelf sea ice in a secularly varying hemispheric climate signal during the 20th century

In 2014 there was record sea ice in Antarctica in fact a global warming expedition got stuck in it.

In a belated Christmas present, Crockford provided this December 26 posting that further deflates the already collapsing narrative about the non-existent «crisis» of declining arctic sea ice: «Polar bear habitat — more Arctic sea ice in Canada this week than in early 1970s.»

At times of low solar irradiance the amounts of sea ice in the Nordic Sea increase, this ice is then driven south due to the atmospheric circulation (also due to weak solar conditions) creating a more northerly air flow in this area.

The problem with previous estimates of thinning sea ice in the Arctic was that the data was compiled into many different formats and scattered across several databases.

The two studies to be discussed are: Atlantic Multidecadal Oscillation and Northern Hemisphere's climate variability (2012) and Role for Eurasian Arctic shelf sea ice in a secularly varying hemispheric climate signal during the 20th century (2013)

Segment — I follows with maximum warmth in the North Atlantic and minimal sea ice in the European Arctic shelf seas.