Sentences with phrase «beaufort sea»

(Beaufort Sea?)

They want publicity but they certainly don't want the public to realize how poor were their previous pessimistic predictions regarding how polar bears would respond to low summer sea ice; or notice how nearly all polar bear photos published in recent years show fat healthy animals; or observe that healthy triplet cubs (a rare phenomenon that supposedly no longer exists in Western Hudson Bay, where they used to be common) have been photographed in Western Hudson Bay (2017), Southern Beaufort Sea (2016) and the Chukchi Sea.

However, during the second half of July, ice loss slowed substantially as the high pressure over the central Arctic and Beaufort Sea was replaced by low sea level pressure (Figure 3).

However, the Beaufort Sea High has re-established during August, combined with a strong low over Eurasia, leading to enhanced transport of ice through Fram Strait and acceleration in the rate of ice loss, particularly in the Chukchi Sea (Figure 4).

Lukovich et al. note that surface wind anomalies in July hindered the advection of ice out of the Beaufort Sea region.

In August, higher pressure rebuilt in the Beaufort Sea together with low SLP over Siberia, helping to compact the ice towards the pole and leading to advection of warm, southerly air into the Arctic.

See also this post from the folks surveying the Anuktuvuk fire aftermath this summer; that big thunderstorm was practically over the Beaufort Sea.

Continued melt of the first - year ice north of the tongue of multi-year ice in the Beaufort Sea is evident in the 16 August ice concentration map (Figure 1).

While the DA was replaced by low sea level pressure (SLP) over the Arctic Ocean in July, high pressure returned over the Beaufort Sea in August coupled with low pressure over Siberia, helping to compress ice towards the pole and bring warm air into the Arctic.

The proposed drill sites are in the Beaufort Sea just north of the Arctic Wildlife Refuge, and east of Prudhoe Bay and the Trans - Alaska Pipeline.NYT notes that Shell has spent nearly $ 4 billion over the last five years attempting to get approval for the plan.

Of course, the Beaufort Sea is not Nunavut.

Between 1979 and 1987, 138 bears were spotted in the southern Beaufort Sea region of Alaska.

Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis

The head - turning decline in sea ice in 2007, for example, was caused mainly by sunny skies and a prolonged dipole: high pressures over the Beaufort Sea, combined with lows near Siberia, pulled in considerable warmth from the Pacific side and increased ice export to the Atlantic.

I.e. enriched in relation to the global level with 2 - sigma confidence, indicating that the Beaufort Sea is either acting as a methane source, or is somehow concentrating methane in the atmosphere.

put these recent observations of high methane concentrations over the Beaufort Sea into context?

, and these IASI measurements indicate levels over the Beaufort Sea up to (or higher than?)

The Alaska Beaufort Sea shelf is relatively narrow.

The Beaufort Sea is blanketed mainly with silty sands and mud from many rivers, especially the MacKenzie River west to the Kuparuk and Colville rivers (e.g., [260]-RRB-.

The flow was though the Mackenzie River into the Beaufort Sea.

The high Arctic comprises the Alaska portions of the Chukchi and Beaufort sea LMEs.

The six regions are identified by the LME with which they coincide or of which they are a part: Northeast U.S. Continental Shelf, Southeast U.S. Continental Shelf, Gulf of Mexico, Insular Pacific — Hawaiian, California Current, Chukchi Sea, Beaufort Sea, East Bering Sea, and Gulf of Alaska.

The change in circulation also shifted the pattern of ice motion, slowing the earlier movement of ice away from the coast in the Beaufort Sea (as depicted in our May 3rd post).

The dramatically low September sea ice of 2012 had apparently no effect on Southern Beaufort Sea polar bears, or at least we have heard nothing to indicate any adverse effects.

However, July conditions greatly reduced sea ice drift speed in the Beaufort Sea and produced a counterclockwise drift pattern in the Laptev Sea (Figure 5a, bottom).

However, Arctic summer weather still exerts a strong control on the severity of sea ice melt, and prolonged periods of above - average temperatures were generally absent during Summer 2017 except in the Beaufort Sea north of Alaska.

In the Beaufort Sea region of the Arctic, surface temperatures were still up to 3 °C warmer than today during the late 1800s.

A preliminary evaluation of the measurement results shows that one - year - old sea ice in the Beaufort Sea (north of Canada / Alaska) is about 20 — 30 centimetres thinner this year than in the two previous years.

Barber spoke shortly after returning from an expedition that sought — and largely failed to find — a huge multiyear ice pack that should have been in the Beaufort Sea off the Canadian coastal town of Tuktoyaktuk.

Andrey Proshutinsky, Sarah Zimmermann, Tim Kane, and Luc Rainville of the 2007 Beaufort Gyre Exploration Project cruise on the Louis St. Laurent for dropping XCPs in the Beaufort Sea.

Steele, M., S. Dickinson, J. Zhang, and R.W. Lindsay, Seasonal ice loss in the Beaufort Sea: Toward synchrony and prediction, J. Geophy.

Couture NJ, Irrgang A, Pollard W, Lantuit H, Fritz M Coastal Erosion of Permafrost Soils Along the Yukon Coastal Plain and Fluxes of Organic Carbon to the Canadian Beaufort Sea.

Differences between surface winds and SLP, and vortex splitting and sea ice extent composites exhibit conditions that are unfavorable to export through Fram Strait in May, 2009; southwesterly versus southeasterly winds in the Beaufort Sea region may also limit free ice drift conditions and inhibit the acceleration evident in years exhibiting record lows in sea ice extent.

https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/asl2.423 «In recent years, winter westerly winds over the Beaufort Sea and summer anticyclonic circulation over the Arctic toward the Fram Strait have contributed to accelerated decreases in sea ice over areas east of Europe and north of Alaska.

The ice mass buoys (Perovich) recorded some bottom melt at the southern most sites in the Beaufort Sea.

They found that erosion of permafrost releases a total of 36 million kilograms of organic carbon from the Yukon Coastal Plain into the Beaufort Sea annually.

The AMSR - E image for 5 July (http://www.iup.uni-bremen.de:8084/amsr/amsre.html) is similar in extent and also shows lower ice concentrations in the Canadian Beaufort Sea and north along 130 ° E.

Ice mass balance buoys deployed in the Beaufort Sea as part of the Office of Naval Research (ONR) Marginal Ice Zone Program indicate that surface temperatures have reached the melting point, at least intermittently, in the region, with some surface melt beginning in the southern part of the Beaufort, but little or no melt farther north (Figure 10), http://www.apl.washington.edu/project/project.php?id=miz.

Conclusions: There was an extraordinarily large amount of ice bottom melting in the Beaufort Sea region in the summer of 2007.

In the Beaufort and Chukchi seas, ice distribution mimicks the Beaufort Gyre circulation pattern with advection of ice from the high Canadian Arctic into the Beaufort Sea and export of ice northward in the Chukchi Sea.

The anomalous thin ice in the Beaufort Sea is most influential in making the prediction, but widespread anomalies in this measure contribute, including an area in the Barents Sea.

«Ice thickness in the Beaufort Sea and Northwest Passage in April 2016, and comparison with April 2015.»

Ten years ago Christopher Arp (UAF) and Benjamin Jones (USGS) left from Barrow, Alaska, by snowmachine and headed 100 miles southeast along the Beaufort Sea coast to Teshekpuk Lake — Alaska's largest Arctic lake.

(04/02/2012) Last week, the U.S. Department of the Interior approved oil spill clean - up plans by Royal Dutch Shell Oil in the Beaufort Sea, paving the way for offshore oil drilling in the Arctic to begin as soon this year.

While the ice thickness is generally thinner in May 2016 compared to previous years, the air temperature has been several degrees above the last 10 year mean in the northern North Atlantic and the Beaufort Sea, but colder in the Eastern Siberian Sea and Laptev Sea causing the described melt pond pattern.

The MetOffice and NOAA forecast of SIP agree on low ice cover in the Beaufort Sea.

The model predicts that large negative sea ice concentration anomalies (< -40 %) will occur in the Beaufort Sea, Chukchi Sea, Laptev Sea, Kara Sea and Barents Sea in September 2016.

This is pretty squishy, but given the current extent and ice conditions in the Beaufort Sea, I think this year's September average will be about 4 million km2.

Most female polar bears in the Beaufort Sea breed for the first time at 5 years of age, compared to 4 years of age in most other populations, and cubs normally remain with their mothers for 2.5 years prior to weaning.

Polar bears throughout the Beaufort Sea and Amundsen Gulf were severely overharvested before the establishment of quotas in Canada in 1968 and the cessation of all but subsistence polar bear hunting in Alaska in 1972.