Sentences with phrase «first year ice»

Given that only 30 % of first year ice survives the summer, the chances that there will be significant open water at the pole itself is high.

Past statistics about the survival rate of first year ice need to be looked at carefully.

i could well be wrong, i often am, but it seems to me the melt rate is about to stall as more and more multi year ice comes into play and the thinner first year ice melts out.

There is still a huge swath of highly concentrated thick first year ice (> 1.2 m) over most of Hudson Bay this week (19 June 2017) and even in the NW quadrant (the closest proxy we have for Western Hudson Bay), the weekly graph shows levels are greater than 2016, when WHB bears came off the ice in good condition about mid-July.

We saw a great deal of first year ice which would suggest further reduced ice extent in 08 but it was cold and there didn't seem to be a great deal of open water.

For example, if warming continued into the mid-21st century, they proposed, bears in the Central Canadian Archipelago, the Arctic Basin and East Greenland («Archipelago» and «Convergent» ice regions, gold and blue on the map) would likely do better because thick, multiyear ice would be replaced by first year ice.

This pristine first year ice, already suffering horribly in the merciless summer sun, deserves our wholehearted support and protection.

That is, Arctic Sea Ice loss (and more importantly, first year ice instead of multi-year ice) is leading to higher Arctic temperatures due to greater input of Arctic Ocean heat to the atmosphere.

Wadhams (University of Cambridge); 3.96; Heuristic Estimate is based on recent EM measurements of first year ice thickness merged into probability density functions of ice thickness from recent submarine voyage and subtracting an assumed summer melt of up to 2m.

Given the fact that 73 % of the Arctic Ocean now consists of first year ice, which is much easier to melt out in the summer, there's a good chance that we'll be as low or lower than last summer.

Given relatively clear conditions and an early to average start to the melt of the central Arctic, the albedo will lower and the process will be in motion to easily melt that first year ice.

I don't think winds will be as important a factor as in years past since it looks like all that would have to be done to achieve a record minimum is melt the first year ice.

The only thought I have to add is that with all of the first year ice that is around the big question is how thick it is now and how much will survive the summer.

Are the statistics from the high arctic, where the ice is most likely to survive, or do they include a lot of more southerly areas where most of the first year ice always melts away?

Since the multiyear sea ice is generally thicker and stronger than the first year ice, it is typically the last to melt.

In purple is colored the first year ice and, from blue to red, the multi-year ice.

10 June 2013 regional ice chart from the Canadian Ice Service showing the predominant ice type; first year ice is shown in green, multi-year ice is shown in brown.

Tagged Canadian Arctic Archipelago, Crockford, first year ice, Gulf of Boothia, ice - free, IUCN Polar Bear Specialist Group, IUCN Red List, Kane Basin, Lancaster Sound, multiyear ice, Northwest Passage, PBSG, predictions, sea ice, wrong

8 July 2013 regional ice chart from the Canadian Ice Service showing the predominant ice type; first year ice is shown in green, multi-year ice is shown in brown.

The ice is mapped by age: first year ice that's formed this year, 2 year old ice (survived the last summer's melt), and so on up to «5 +» (which is very thick multiyear ice that has survived five or more summer melt seasons).

The September 2009 extent, as we track it for the rest of the summer, will depend on several factors, including the dynamics of the relatively high levels of thin, first year ice; temperature and wind conditions; and sea level pressure.