Sentences with phrase «ice breakup»
"Ice breakup" refers to the process when frozen water, such as ice on lakes or rivers, begins to thaw and break apart, turning into liquid water again. Full definition
High evaporation rates in a warm autumn can actually lead to more ice cover the following winter and slower ice breakup in the spring, because the water is colder after evaporation.
sciencenews.org
The rapidly warming Arctic is already impacting Alaska, as earlier ice breakups on the Tanana River are more likely.
The researchers used underwater microphones aboard buoys to record the ambient noises of a variety of ice breakups at the Hans Glacier in Norway and synchronized the recordings with time - lapse photos of the glacier (as shown in the video above).
A similar trend is seen with extremely early ice breakup on the Torne.
I taught a climate statistics class at the University of Alaska Fairbanks, Dept. of Atmospheric Sciences in 2011 (I think) during spring semester and as a class team exercise we «forecast» the Nenana ice breakup date.
Although they never knew exactly when it would happen, they had come to expect and prepare for ice breakups, which have become more common in recent years.
* Record early river ice breakup of the Yukon River at Dawson (April 23) and the Kuskokwim River at Bethel (April 20)
Abstract Under current climate trends, spring ice breakup in Hudson Bay is advancing rapidly, leaving polar bears (Ursus maritimus) less time to hunt seals during the spring when they accumulate the majority of their annual fat reserves.
Summer ice breakup on western Hudson's Bay now occurs two weeks earlier than it did 20 years ago, and killer whales have moved their hunting into the bay.
The scientists hope that these sound patterns would help them understand the mechanisms of glacier ice breakups and predict the mass loss more reliably.
The scientists, who measured the waves with sensors under the surface, said the swells could accelerate the pace of Arctic ice breakup, eventually driving the region to an ice - free summer.
All of which indicates 2017 won't be an early sea ice breakup year for WHB polar bears.
Even watching the annual ice breakup is a few weeks, but the problem on the West Antarctic ice sheet is that it is building up less every year.
«Satellite photos from mid-May depict an early sea - ice breakup with an ominous series of openings, known as leads, extending deep into the Arctic,» said a statement from NOAA.
Relative to recent years and potential impacts on polar bear health and survival in Canada, there is nothing alarming in the pattern or speed of sea ice breakup for 2017, either over Hudson Bay, the southern Beaufort, or the eastern high Arctic.
Nenana (and Yukon) ice break up has been investigated in the context of the large scale climate and is closely related to what is going on in the North Pacific (Bieniek, P. A., U. S. Bhatt, L. A. Rundquist, S. D. Lindsey, X. Zhang, R. L. Thoman, 2011: Large - Scale Climate Controls of Interior Alaska River Ice Breakup.
That's because the ice breakup patterns vary across different environments and can be difficult to observe directly.
-- There is a discrepancy between the above map showing the retreat of the ice breakup points and the NASA map over 150 years (7 MB.
2007 doi: 10.2193 / 2006 - 180 Effects of Earlier Sea Ice Breakup on Survival and Population Size of Polar Bears in Western Hudson Bay ERIC V. REGEHRa, 1, NICHOLAS J. LUNNb, STEVEN C. AMSTRUPc, and IAN STIRLINGd «Survival of juvenile, subadult, and senescent - adult polar bears was correlated with spring sea ice breakup date, which was variable among years and occurred approximately 3 weeks earlier in 2004 than in 1984.
Climate change driven advances in the date of sea ice breakup will increasingly lead to a loss of spring polar bear foraging opportunities on ringed seal pups creating a phenological trophic «mismatch.»
Aug. 9, 8:30 a.m. Update Andreas Muenchow of the University of Delaware is much more cautious than Ohio State's Jason Box about attributing the ice breakup to recent warming.
Survival and population size of polar bears in western Hudson Bay in relation to earlier sea ice breakup.
Unlike 2007, which had a strong unusual wind pattern during all the summer months that contributed to major sea ice loss, summer 2012 meteorology was generally unremarkable, except for a strong storm in early August that contributed to sea ice breakup.