Sentences with phrase «ice than those at the end»

Anomalies in ice albedo or downwelling shortwave radiation at the start of the melt season have more than a five-fold larger impact on solar heating of ice than those at the end of the melt season (Perovich et al., J. Geophys.

Not exact matches

At the end of the day we'd call into the local Dairy (a corner store) and each choose a scoop of ice cream which, more often than not, ended up half melted down our hands before we'd even got back to the car.

In this study, the research team excavated intertidal beach sediments on the shoreline of Calvert Island, British Columbia, where the sea level was two to three meters lower than it is today at the end of the last ice age.

Thousands of marks on the Antarctic seafloor, caused by icebergs which broke free from glaciers more than ten thousand years ago, show how part of the Antarctic Ice Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstabIce Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstabice age as it balanced precariously on sloping ground and became unstable.

And in many places, it's moving faster than the ice is thought to have retreated during the warming period at the end of the last ice age, around 20,000 years ago.

Humanity has now raised global CO2 levels by more than the rise from roughly 180 to 260 ppm at the end of the last ice age, albeit in a few hundred years rather than over more than a few thousand years.

Melting can be rapid: as the last ice age ended, the disappearance of the ice sheet covering North America increased sea level by more than a metre per century at times.

At summer's end, sea - ice coverage was one - third smaller than the average from 1979 to 2000.

* The late - summer polar ice cap, already at historic lows today, would shrink only another quarter and hold steady by century's end, instead of melting by more than three - quarters with no let - up in sight.

At the end of the last glacial maximum, when ice sheets reached their maximum extent 20,000 to 25,000 years ago, the ice covering Antarctica was even thicker than it is today.

Greenland's ice sheet melted nearly 19 billion tons more than the previous high mark, and the volume of Arctic sea ice at summer's end was half what it was just four years ago, according to new NASA satellite data obtained by the Associated Press (AP).

«Conversely, there is more and better evidence across Iceland that when the ice sheet underwent major reduction at the end of the last glacial period, there was a large increase in both the frequency and volume of basalt erupted — with some estimates being 30 times higher than the present day.

The volume of sea ice left at the end of the summer melt season seems to vary more from year to year than had perhaps been previously appreciated; after declining for several years, sea ice volume shot up after the unusually cool summer of 2013, the data revealed.

However, the big unknown remaining is whether corals can adapt to global warming, which is now occurring at an unprecedented rate — at about two orders of magnitude faster than occurred with the ending of the last Ice Age.

At the end of the day, you're still eating something much healthier than ice cream.

It's useless to get mad at this movie, which is nothing more than a collection of jokes about bodily functions that occasionally laughs at people injuring themselves in order to take a break from gags about urine, vomit, soft - serve chocolate ice cream that looks like it's coming out of a man's rear end, a showroom - floor toilet that a different man sleepily decides to use to deposit what the ice cream is representing, another guy showing off his ability to «burp - sneeze - fart,» and more.

That certainly puts FIG at the other end of the spectrum from, say, ART whose AUM is melting away faster than an ice cube in the Sahara... The only real hope I see for ART shareholders is for GAM to grudgingly buy it back.

Divers can descend more than 400 feet as they explore a series of underwater canyons created at the end of the last Ice Age more than 10,000 years ago.

Measuring some 300 meters across (985 feet), the Belize Blue Hole was created more than 10,000 years ago when rising waters at the end of the Ice Age submerged a vast series of caverns and caves.

For me a video game can not get anymore epic than this, sure it is going to be very sad to see Bungie leave the Halo scene, but at the same time this is going to be the game to put the icing on the proverbial cake, the finisher to end all finishers and indeed probably the best Halo game ever to be created.

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.

Any existing ice this year will form the basis of the multi-year ice, yes — but the sea forms at the bottom, in contact with sea water, and melts at the top — so at the end of next summer, all of this year's ice could have melted off the top, leaving only the new ice beneath, possibly thinner than this year.

Andy — As far back as Severinghaus et al (Timing of abrupt climate change at the end of the Younger Dryas interval from thermally fractionated gases in polar ice, 1998, Nature), the ice - core data showed clearly that the abrupt climate changes (end of the Younger Dryas in that case) were faster than the methane changes.

The past two weeks have not been good for the Arctic and climate change: First, scientists discover that permafrost holds more greenhouse gases than we thought; Second, sea ice melt - off is at its second greatest amount ever and could set a new record by summer's end; Third, new research confirms that the past decade has indeed been the warmest since the Romans occupied Britain, and the trend is for more warming.

The rate of change is vastly faster than the rate of change at the end of the ice age.

Sea ice was more extensive at the end of May 2012 than in the previous two years and nominally was thus not a good predictor.

At the end of the summer, a record - breaking 86 % of ice cover was less than two years old; ice older than five years has all but disappeared.

According to the center, global sea ice levels at the end of 2008 were «near or slightly lower than» those of 1979.

A 1991 Shell video revealed last year by The Guardian warned of climate change «at a rate faster than at any time since the end of the ice age — change too fast perhaps for life to adapt, without severe dislocation.»

Recently published research by Barber and colleagues shows that the ice cover was even more fragile at the end of the melt season than satellite data indicated, with regions of the Beaufort and Chukchi Seas covered by small, rotten ice floes.

Even if the estimates of the ice sheet collapsing by the end of the century were correct, however, it would likely take much longer than that for the effect of methane hydrates to become detectable in the atmosphere, says Alexey Portnov, a researcher at the Arctic University of Tromsø in Norway.

Since the rate of change at the beginning of refreezing tends to be faster than end of melting, removing higher frequencies with a filter introduces a general drift to a earlier date of minimum ice extent.

Update: Since the rate of change at the beginning of refreezing tends to be faster than end of melting, removing higher frequencies with a filter introduces a general drift to a earlier date of minimum ice extent.

Ice extent values at the end of the first week in August suggest a different ice evolution than that from the end of July (Stroeve, KaleschkIce extent values at the end of the first week in August suggest a different ice evolution than that from the end of July (Stroeve, Kaleschkice evolution than that from the end of July (Stroeve, Kaleschke).

«Though most of the CMIP5 models project a nearly ice - free Arctic (sea ice extent less than 1 × 106 km2 for at least 5 consecutive years) at the end of summer by 2100 in the RCP8.5 scenario...»

At year 18,000 and counting our current interglacial vacation from the Ice Age is much nearer its end than its beginning.

Although ice extent at the end of June 2010 was slightly lower than that observed in 2007 (Figure 2), the persistence of the Arctic Dipole Anomaly (DA) throughout the summer of 2007 resulted in an acceleration of ice loss in July that led to the record low ice extent in September 2007.

Though most of the CMIP5 models project a nearly ice - free Arctic (sea ice extent less than 1 × 106 km2 for at least 5 consecutive years) at the end of summer by 2100 in the RCP8.5 scenario (see Section 12.4.6.1), some show large changes in the near term as well.

«CMIP5 models project a nearly ice - free Arctic (sea ice extent less than 1 × 10 ^ 6 km2 for at least 5 consecutive years) at the end of summer by 2100 in the RCP8.5 scenario... «Assume a 15 km2 million max and 3 km2 million min.

In years such as 2008, initial sea ice conditions at the end of spring may have more of an influence on a September arctic sea ice extent Outlook than a forecast of summer wind fields, which dominated the ice situation in 2007.

report that ocean sediment cores containing an «undisturbed history of the past» have been analyzed for variations in PP over timescales that include the Little Ice Age... they determined that during the LIA the ocean off Peru had «low PP, diatoms and fish,» but that «at the end of the LIA, this condition changed abruptly to the low subsurface oxygen, eutrophic upwelling ecosystem that today produces more fish than any region of the world's oceans... write that «in coastal environments, PP, diatoms and fish and their associated predators are predicted to decrease and the microbial food web to increase under global warming scenarios,» citing Ito et al..

We compared 23,000 days of observations in those records with late twentieth - century observations, and concluded that the extent of the sea ice at the end of winter was pretty much the same in the nineteenth and late twentieth century, but that the end - of - summer Arctic sea ice retreat is greater today than it was then.

The crowded urban spaces of America and Europe spread across landscapes warmer than at any time since the end of the Ice Age.

If you look at the geological record of the end of the last ice age, there's something that crops up that's more than a little bit disturbing.

Human - forced warming is currently about 20 times faster than warming at the end of the last ice age.

In addition, as much or more than the 4 degrees Celsius worth of warming achieved at the end of the last ice age could be seen by the end of this Century.

And with human warming now proceeding at a pace about 20 times faster than the end of the last ice age, the risk for rapid melt has been greatly enhanced.

Arctic sea ice end - of - summer minimum area, although variable from year to year, has plummeted by more than a third in the past few decades, at a faster rate than in most models [21], with the sea ice thickness declining a factor of four faster than simulated in IPCC climate models [22].

What is more, the Sun has been more active and for longer over the last 70 years than at almost any previous similar period over the past 11,400 years since the end of the last ice age.

You can download the data here and see for yourself that according to PIOMAS as of end of September 2015 sea ice volume is 1087 km3 lower than 2014, and just 289 km3 higher than 2013, after having been 1223 km3 higher at the end of June.