Sentences with phrase «ice retreat»

"Ice retreat" refers to the process of ice shrinking or melting, usually due to warmer temperatures. It means that ice is moving or receding back, as it turns into liquid water or evaporates. Full definition
Second, the rate of sea ice retreat in recent years is also unprecedented in the historical record.
Each year is different: sometimes ice retreats from the shores in dramatic fashion and other years have a more gradual melt.
When seasonal ice retreat occurs early, low - albedo open water areas are exposed early, which gain a lot of energy from the sun.
But will probably end up as the third - or fourth - greatest seasonal ice retreat on record.
Today, the two glaciers are getting ever closer to the point where they may become unstable, resulting once again in rapid ice retreat.
Last year's sea ice retreat allowed scientists to map big potential sea floor claims.
This suggests delayed ice retreat due to thicker ice in the region.
However, changing climates result in more polar bears visiting coastal communities earlier in the fall each year as sea ice retreats.
I've freshly canvassed more than a dozen sea - ice experts to get their latest views on whether the remarkable Arctic ice retreat of last summer will be matched this year.
Mr. Gore showed those videos of ice retreating in Antarctica.
Some changes are well - known, such as declines in polar bear populations and stresses to walruses being forced out of their shallow feeding grounds as ice retreats into deeper waters.
This increased availability of iron occurs in connection to increased atmospheric dust transport during glacials, or (at a seasonal scale) during sea ice retreat during spring / summer.
Today, as the global climate continues to warm, rapid and sustained retreat may be close to happening again, and could trigger runaway ice retreat into the interior of the continent, which in turn would cause sea levels to rise even faster than currently projected.
I sent him my post on new insights about Arctic ice retreats in the last big northern warm period — a 2,500 - year «optimum,» ending around 6,000 years ago, when the region was several degrees warmer on average than today.
In contrast with last year he notes that episodes of ice export, stopped by formation of temporary ice bridges, led to an influx of multiyear ice into Nares Strait, which will slow down melt and ice retreat later in the season.
Updated, Nov. 25, 10:41 a.m. Ruth Teichroeb, the communications officer for Oceans North: Protecting Life in the Arctic, an initiative of the Pew Charitable Trusts, sent a note this evening about new steps related to an issue I've covered here before — the rare and welcome proactive work by Arctic nations to ban fishing in the central Arctic Ocean ahead of the «big melt» as summer sea ice retreats more in summers in a human - heated climate.
In 2006, they noted in Polar Biology that these were the first drowned bears seen since the survey began in 1987 — and speculated that such drownings may increase as pack ice retreats (DOI: 10.1007 / s00300 -005-0105-2).
There are the famous data sets: the Vostok ice core drilled in the 1970s that looks back about 400,000 years, the Keeling curve started in 1958, data from satellites that watch sea ice retreat starting around 1979.
Local knowledge of recurring ice retreat patterns constrained by, e.g., topography or ocean currents can further enhance outlooks at the regional scale, which is also discussed for the NWP below.
* the Pliocene saw global ice retreat leading to global sea level rise of 22 + / - 10 metres during the prolonged warmer periods.
Continuing a long - term retreat What is important, Meier said, is that 2013 fits into the long - term trend of significant ice retreat and ice thinning from the 1970s and 1980s, despite year - to - year weather variations.
The ice this summer did not pull back as much as it did in 2007, when an unusual conjunction of winds, atmospheric pressure and temperatures caused the biggest ice retreat since satellites began tracking conditions in 1979.
The researchers recommend that the National Climate Assessment incorporate the timing of spring ice retreat and fall ice advance as measures of climate change in future reports.
«Scars» left by icebergs record West Antarctic ice retreat
If ice retreats and there is strong upwelling, these copepods could end up on the inner shelf and possibly outcompete smaller zooplankters.
What's fascinating is that not all Eurasian ice retreat was from surface melting alone.
In conclusion the report itself notes, «long - term ice retreat at the summit of Kilimanjaro therefore is most likely to be influenced by changes in local land - use as well as more regional free - air changes.»
Updated information about ice extent in this region indicates substantial ice retreat in the eastern Barents and the Kara Seas, where ice is now well below climatological extent (Figure 5), with little change in the Greenland Sea and Fram Strait region, where the ice edge is within the decadal mean range except for the southernmost stretches shown in Figure 5.
Climate models predict significant future Arctic sea ice decline as the planet warms, but the models disagree over the rate at which this will occur, and the rate of sea ice retreat observed during the satellite era is actually faster than the model predictions, suggesting that the models do not adequately simulate the physical processes that regulate sea ice thickness and extent.
Today, the Barents Sea ecoregion is suffering the strongest sea ice retreat ever measured; and these changes are suspected to modify food access and thus diet of several species.
Sea Ice in its «Death Spiral» Scientist Claims Arctic Just Witnessed Fastest August Ice Retreat in History Satellite Images Reveal Two of Greenland's Biggest Glaciers are Losing More Ice
The distribution of multi-year ice also impacted ice retreat in the Beaufort Sea, where sluggish melt damped by high cloudiness helped preserve large swaths of ice in the eastern Beaufort Sea.
Now we are having the strongest ice retreat in the Pacific sector and ice pile - up near Greenland — practically the opposite to what Funder's paper suggests for the early Holocene.
[UPDATE, 5/20: Natalie Angier has written a nice column on the relatively unheralded walrus, which — like the far more charismatic polar bear — is having a hard time as Arctic sea ice retreats earlier and farther each spring and summer and forms later in the boreal fall.
Record seasonal retreats of sea ice northward into the Chukchi and Beaufort seas were reported for 2002 - 2005 [258], but they were exceeded by ice retreats in 2007 and 2008 [255].
The uncertainty about global ice retreat fueled controversy in 2010 when the Intergovernmental Panel on Climate Change acknowledged a blunder: The group's 2007 claim that Himalayan glaciers could melt away by 2035 was, they admitted, poorly sourced.
After Levy and colleagues noted visible effects of ground ice retreat in Garwood Valley, they began to monitor the valley, combining time - lapse photography and weather - station data at 15 - minute intervals to create a detailed view of the conditions under which the ice, a relict from the last ice age, is being lost.
This ongoing ice retreat is spawning a variety of changes in the Arctic ecosystem, from increased parasites in caribou herds to a growth in annual tundra fires in Alaska, according to the assessment in Science last week, which reviews prior data.
By matching these isotope ratios to the astronomical cycle — Earth's orbit oscillates between an elliptical and circular path on a roughly 400,000 - year cycle — the researchers found that patterns of glaciation and ice retreat followed the eccentricity of our planet's orbitthey report in the December 22 Science.
Licht, K.J., Jennings, A.E., Andrews, J.T., and Williams, K.M., 1996, Chronology of late Wisconsin ice retreat from the western Ross Sea, Antarctica: Geology, v. 24, p.223 - 226.

Phrases with «ice retreat»

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