Sentences with phrase «between sea ice conditions»

A new NASA - led study has discovered an intriguing link between sea ice conditions and the melting rate of Totten Glacier, the glacier in East Antarctica that discharges the most ice into the ocean.

Not exact matches

The results highlight how the interaction between ocean conditions and the bedrock beneath a glacier can influence the frozen mass, helping scientists better predict future Antarctica ice loss and global sea level rise.

At its height between 1960 and 1980, Polyarka was staffed by more than fifty working scientists, engineers, and technicians focused on measurements of surface weather, snow depth, sea ice, and conditions in the upper atmosphere.

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.

One aspect of the recently published study on Chukchi Sea polar bears (Rode et al. 2014 [now in print] 2013; see here and here) has not been stressed enough: their finding that the differences in overall condition between bears in the Chukchi and Southern Beaufort Seas came down to disparities in spring feeding opportunities and therefore, the condition of spring sea iSea polar bears (Rode et al. 2014 [now in print] 2013; see here and here) has not been stressed enough: their finding that the differences in overall condition between bears in the Chukchi and Southern Beaufort Seas came down to disparities in spring feeding opportunities and therefore, the condition of spring sea isea ice.

Arbetter et al. (National Ice Center); 4.4; Statistical The system determines the relationships between sea ice and atmospheric conditions over the past ten years to determine the likelihood of ice being present this yeIce Center); 4.4; Statistical The system determines the relationships between sea ice and atmospheric conditions over the past ten years to determine the likelihood of ice being present this yeice and atmospheric conditions over the past ten years to determine the likelihood of ice being present this yeice being present this year.

Whereas most proxy - based reconstructions point to an early - middle LIG climatic optimum with reduced summer sea ice concentrations between 126 and 116 ka, the results of our model simulations only support a pronounced reduction in summer sea ice concentration for the LIG - 125 and LIG - 130 runs (in both time slice as well as transient runs; Figs. 8 and 9), but also indicate that sea ice was still present in the central Arctic Ocean even under climatic conditions significantly warmer than today (Fig. 4).

Sometime before 2020 certainly, but based on the 5 year rebuilding time between 2007 and 2012, we might see a new lower low in Arctic sea ice around 2017, as the spiral continues down to an ice free condition this century.

For the LIG - 120 interval, we record an apparent mismatch between the LIG - 120 simulation (suggesting sea ice conditions similar to those of the PI conditions)(Figs. 4 and 8) and the proxy - based sea ice record (suggesting minimum sea ice concentrations similar to the early - mid-LIG (Fig. 7a).

Combining the limitations of this data with the (interannual) variability in atmospheric and oceanic conditions between now and September 2008 leaves a wide range of scenarios open for how sea ice conditions may develop throughout the summer.

Richter - Menge, left, and members of the NASA IceBridge Team prepare for a 2013 flight from Thule, Greenland, to the Beaufort Sea, off Alaska's northeastern coast, to examine sea - ice conditions between the two poinSea, off Alaska's northeastern coast, to examine sea - ice conditions between the two poinsea - ice conditions between the two points.

However, there remains uncertainty in the rate of sea ice loss, with the models that most accurately project historical sea ice trends currently suggesting nearly ice - free conditions sometime between 2021 and 2043 (median 2035).12 Uncertainty across all models stems from a combination of large differences in projections among different climate models, natural climate variability, and uncertainty about future rates of fossil fuel emissions.

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 extesea 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 exteSea region may also limit free ice drift conditions and inhibit the acceleration evident in years exhibiting record lows in sea ice extesea ice extent.

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

Based on the understanding of both the physical processes that control key climate feedbacks (see Section 8.6.3), and also the origin of inter-model differences in the simulation of feedbacks (see Section 8.6.2), the following climate characteristics appear to be particularly important: (i) for the water vapour and lapse rate feedbacks, the response of upper - tropospheric RH and lapse rate to interannual or decadal changes in climate; (ii) for cloud feedbacks, the response of boundary - layer clouds and anvil clouds to a change in surface or atmospheric conditions and the change in cloud radiative properties associated with a change in extratropical synoptic weather systems; (iii) for snow albedo feedbacks, the relationship between surface air temperature and snow melt over northern land areas during spring and (iv) for sea ice feedbacks, the simulation of sea ice thickness.

I am fully aware that there are differences between the Arctic and Antarci sea ice conditions.

Just for one example, if it turns out that, between melt of sea ice and Greenland ice, the North Atlantic Current slows or stops, we would expect to see fairly dramatically colder weather in Europe for a while, even thought this condition could be directly linked to results produced by GW (though in the long term, the warming would, presumably eventually overtake the cooling from change in ocean currents).