Sentences with phrase «between polar researchers»

More collaboration and direct dialogue between polar researchers at venues and conferences will facilitate joint studies in Arctic forests, tundra, and sea ice.

Not exact matches

Across all 19 polar bear populations, the researchers found that the total number of ice - covered days declined at the rate of seven to 19 days per decade between 1979 and 2014.

Because their data consistently showed that black, brown and polar bears carry highly distinct Y chromosome lineages, the researchers also estimated the timing of the split between the male lineages of brown and polar bears.

Given how mobile giraffes are, one would expect a lot of interbreeding, so the researchers were surprised by how different the DNA could be — some genetic differences greater than those between a grizzly and a polar bear, which are separate species.

The researchers found that between 1985 and 1994, 62 % of polar bear dens were built on sea ice — but that number dropped to 37 % between 1998 and 2004.

Researchers observed 137 interactions between polar and grizzly bears at the bone pile (like the one pictured above, where a grizzly surveys the carcass as a polar bear feeds).

Researchers at CIRES» National Snow and Ice Data Center [About NSIDC] investigate the dynamics of Antarctic ice shelves, new techniques for the remote sensing of snow and freeze / thaw cycle of soils, the role of snow in hydrologic modeling, linkages between changes in sea ice extent and weather patterns, large - scale shifts in polar climate, river and lake ice, and the distribution and characteristics of seasonally and permanently frozen ground.

During the first period the stratospheric polar vortex, a system of strong westerly winds at altitudes 10 - 50 km, is projected to weaken, and this weakening slows down westerly winds all the way down to the surface, cancelling out the effect of the increasing temperature difference between the Tropics and the Pole», explains researcher Alexey Karpechko from FMI.