Sentences with phrase «thick older sea ice»

The letter noted that the sharp recent reduction in the extent of sea ice, and particularly thick older sea ice, was far outpacing what had been projected by computer simulations.

Not exact matches

A big «hole» appeared in August in the ice pack in the Beaufort and Chukchi seas, north of Alaska, when thinner seasonal ice surrounded by thicker, older ice melted.

Some analyses have hinted the Arctic's multiyear sea ice, the oldest and thickest ice that survives the summer melt season, appeared to have recuperated partially after the 2012 record low.

It has also decreased the amount of the oldest, thickest Arctic sea ice, leaving polar waters dominated by thinner ice that forms in the fall and melts in the summer.

Thinner, young sea ice is more susceptible to being compressed by wind than is older, thicker sea ice.

Arctic sea ice is varying there because of dynamics AND thermodynamics on many time scales and driven by all manner of influences — with much of the recent drop due to a big flush of thick old ice many years ago.

In 1985, 45 % of the sea ice in the Arctic was thick, older ice, said NOAA Arctic scientist Emily Osborne.

The fate of sea ice in the Arctic Ocean is determined by a complicated mix of factors, including the pressure changes, with the biggest loss of old thick ice resulting more from a great «flush» of floes than melting, Dr. Rigor and many other scientists tracking the region say.

The physical justification for this statement is based primarily on the loss of old, thick sea ice and the increased mobility of sea ice.

In addition to the loss of old thick sea ice, the increased mobility of sea ice in the Beaufort Sea is consistent with the high sea ice mobility seen in the Atlantic sector by the drift of the «TARA» during the DAMOCLES experiment (Gascard, EOS, Vsea ice, the increased mobility of sea ice in the Beaufort Sea is consistent with the high sea ice mobility seen in the Atlantic sector by the drift of the «TARA» during the DAMOCLES experiment (Gascard, EOS, Vsea ice in the Beaufort Sea is consistent with the high sea ice mobility seen in the Atlantic sector by the drift of the «TARA» during the DAMOCLES experiment (Gascard, EOS, VSea is consistent with the high sea ice mobility seen in the Atlantic sector by the drift of the «TARA» during the DAMOCLES experiment (Gascard, EOS, Vsea ice mobility seen in the Atlantic sector by the drift of the «TARA» during the DAMOCLES experiment (Gascard, EOS, Vol.

The physical justification for this statement is based primarily on the loss of old, thick sea ice and the increased mobility of sea ice (less extensive, thinner ice is more mobile).

Sea ice less than one year old was somewhat thicker than has been observed in recent years, with a modal thickness around 1.8 m, after one of the coldest North American winters in recent years.

Compared to spring 2011, the old ice in the Beaufort Sea in May 2012 appears to be somewhat more consolidated and older overall (which typically implies thicker ice), with more ice of three years of age or greater and less first - year ice mixed in.

This estimate includes 2nd - and 3rd - year sea ice and covers only the central Arctic Basin, so the loss of older thicker sea ice is even greater (see also Comiso, 2011, J. Climate, Vol.

Relatively large expanses of older, multiyear ice were observed in the Beaufort Sea with a modal thickness around 3.6 m, which was also somewhat thicker than has been observed in this region recently.

A new NASA study revealed that the oldest and thickest Arctic sea ice is disappearing at a faster rate than the younger and thinner ice at the edges of the Arctic Ocean's floating ice cap.

Varying thicknesses of sea ice are shown here, from thin, nearly transparent layers to thicker, older sea ice covered with snow.

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

The movement of old, thick sea ice to lower latitudes has a two-fold impact.

Compared to old sea ice that is 3 meters thick, open water ventilates 70 times more heat.

The Transpolar Drift Stream now sweeps across most of the Arctic Ocean, carrying most of the older, thicker sea ice out of the Arctic Ocean through Fram Strait (lower right).

By 1990, only about 30 % of the Arctic Ocean is covered by older thicker sea ice.

Like a cork removed from a champagne bottle, the early break up in these passages is allowing thick, old sea ice to flow south from the Arctic Ocean into the North Atlantic, choking areas used by fishing, shipping and ferry boats.

Sea ice refused to export from the continental shelf, where it got thicker and thicker and older and older, while completely disappearing offshore.

A big «hole» appeared in August in the ice pack in the Beaufort and Chukchi seas, north of Alaska, when thinner seasonal ice surrounded by thicker, older ice melted.

During the late 1980s and early 1990s, the circulation patterns favoured the motion of older, thicker sea ice out of the Arctic.