Sentences with phrase «when sea ice conditions»

As late April is the peak of this critical spring feeding period for most polar bear populations, this is when sea ice conditions are also critical.

Scientists at the National Snow and Ice Data Center (NSIDC), University College London, University of New Hampshire and University of Washington analyzed 300 summer Arctic sea ice forecasts from 2008 to 2013 and found that forecasts are quite accurate when sea ice conditions are close to the downward trend that has been observed in Arctic sea ice for the last 30 years.

Not exact matches

One is changed environmental conditions for a discrete subpopulation of the original population, such as when ice ages cause dramatic changes in sea levels, cutting species into subgroups.

During the later period, when there was less sea ice, the whales dove significantly longer and deeper than in the earlier period — presumably in search of prey as the animals, in turn, changed their habits because of different ocean conditions brought on by sea ice loss.

The study starts with observations of eroding ice sheets spreading, cooler freshwater at both ends of the planet and geological hints of tempestuous conditions toward the end of the Eemian, that last interval between ice ages when global temperatures and seas were higher than now.

When Arctic researchers start investing in floating buoys to study polar ocean dynamics (instead of devices that sit on the sea ice), that's surely a sign of a sea change in conditions and thinking.

The animated sea - ice imagery above — from one of two autonomous cameras set on ice near the North Pole each spring — gives a close - focus view of the slushy conditions that develop on the shifting ice when the summer sun is at its peak.

In 1992 when breakup of sea ice was delayed by 25 days, the body condition of all ringed seals declined.

During their work as part of the Norwegian - led research project Norwegian Young Sea Ice Cruise (N - ICE2015), an expedition launched to observe Arctic sea ice conditions, they were accustomed to watching for danger signs and moving quickly to salvage their gear and instruments when the ice broke Sea Ice Cruise (N - ICE2015), an expedition launched to observe Arctic sea ice conditions, they were accustomed to watching for danger signs and moving quickly to salvage their gear and instruments when the ice broke Ice Cruise (N - ICE2015), an expedition launched to observe Arctic sea ice conditions, they were accustomed to watching for danger signs and moving quickly to salvage their gear and instruments when the ice broke ICE2015), an expedition launched to observe Arctic sea ice conditions, they were accustomed to watching for danger signs and moving quickly to salvage their gear and instruments when the ice broke sea ice conditions, they were accustomed to watching for danger signs and moving quickly to salvage their gear and instruments when the ice broke ice conditions, they were accustomed to watching for danger signs and moving quickly to salvage their gear and instruments when the ice broke ice broke up.

That would put it in latter part of the Little Ice Age when I imagine sea ice and glaciers must have been significantly advanced (Schneider quotes Pope Alexander IV on what must have been similar ice conditions around Greenland in 149Ice Age when I imagine sea ice and glaciers must have been significantly advanced (Schneider quotes Pope Alexander IV on what must have been similar ice conditions around Greenland in 149ice and glaciers must have been significantly advanced (Schneider quotes Pope Alexander IV on what must have been similar ice conditions around Greenland in 149ice conditions around Greenland in 1492).

Regardless of when icefree conditions are actually reached, it is clear that rapid Arctic sea ice loss is already underway and will continue for the foreseeable future.

In those studies, sea ice exhibits nonlinear behavior such that when it is reduced below a certain threshold (the «Small Ice Cap Instability» threshold), the model sea ice abruptly reverts to year - round ice - free conditioice exhibits nonlinear behavior such that when it is reduced below a certain threshold (the «Small Ice Cap Instability» threshold), the model sea ice abruptly reverts to year - round ice - free conditioIce Cap Instability» threshold), the model sea ice abruptly reverts to year - round ice - free conditioice abruptly reverts to year - round ice - free conditioice - free conditions.

When scientists compare average sea ice conditions between years, they often use a 30 - year reference period of 1981 to 2010.

«When IP25 [proxy for sea ice] is absent, lack or very low abundance of phytoplankton biomarkers reflects permanent sea - ice coverage, whereas elevated abundance of phytoplankton markers reflects ice - free conditions.

This overshoot is caused predominantly by the reduction of the meltwater in the northern North Atlantic associated with the retreat of the large amount of sea ice, an effect that becomes dominant when the subpolar North Atlantic is covered by sea ice as in the glacial condition.

Sea ice conditions determine when sealers begin hunting in areas that include the southern Gulf of St. Lawrence and the much larger hunt on the Front off northern Newfoundland.

But a reminder, you are doing V&V on the dynamic core, the bottom boundary conditions (like orography), each individual parameterization (e.g. radiative transfer, convection, boundary layer, clouds, etc), and in the case of coupled models the ocean module, the sea ice module, the land process module, the aerosol module (and in future the ice sheet module), in stand alone mode as well as when coupled in the climate model.