Sentences with phrase «with less sea ice»

This sea ice feedback at 18K is consistent with the smaller fsnow / ice ∼ 1.1 in the So and CO2 experiments, which applied to a warmer earth with less sea ice.

With less sea ice, storms can also kick up stronger waves that pummel and erode coastlines, the scientists said.

It's still cutting - edge research and there's no smoking gun, but there's evidence that with less sea ice, you put a lot of heat from the ocean into the atmosphere, and the circulation of the atmosphere responds to that... We've seen a tendency for autumns with low sea ice cover to be followed by a negative Arctic Oscillation.

Some scientists have reported larger salp populations there in warmer years with less sea ice.

With less sea ice many marine ecosystems will experience more light, which can accelerate the growth of phytoplankton, and shift the balance between the primary production by ice algae and water - borne phytoplankton, with implications for Arctic food webs.

With less sea ice, the refrigerator door is left open - darker open water is exposed, which readily absorbs the Sun's energy in summer, heating the ocean and leading to even more melt.

With less sea ice there is also less insulation, so that heat from the ocean escapes to warm the atmosphere in the autumn and winter.

The only two years with less sea ice were 2007 and 2008.

Simple physics dictates that with less sea ice there is magnified warming of the Arctic due to powerful albedo feedback; this in turn reduces the equator to pole temperature gradient which slows the jet stream winds causing them to become more meridional; this combined with 4 % more water vapor in the atmosphere (compared to 3 decades ago) is leading to much more extremes in weather.

This is far from a settled story, but most of the scientists I know now have the feeling that in a high CO2 world with less sea ice, the chill from a THC shutdown would be a lot less.

It's also possible that feeding opportunities are actually better for belugas in an ocean with less sea ice.

Not exact matches

With a shorter season of sea ice, polar bears have less access to marine mammals.

«We can also combine that data with projections of sea ice, to predict how much more or less it will cost these animals to make a living over the next century,» Fischbach says.

Political divisions are less apparent with factual questions that do not infer climate change, such as whether the melting of Greenland and Antarctic land ice, or of Arctic sea ice, could potentially do the most to raise sea levels.

The recent string of record - low winter maximums could be a sign that the large summer losses are starting to show up more in other seasons, with an increasingly delayed fall freeze - up that leaves less time for sea ice to accumulate in winter, Julienne Stroeve, an NSIDC scientist and University College London professor, previously said.

The global mean temperature rise of less than 1 degree C in the past century does not seem like much, but it is associated with a winter temperature rise of 3 to 4 degrees C over most of the Arctic in the past 20 years, unprecedented loss of ice from all the tropical glaciers, a decrease of 15 to 20 % in late summer sea ice extent, rising sealevel, and a host of other measured signs of anomalous and rapid climate change.

With increasingly less multi-season ice, rebuilding previous sea ice extent gets harder and harder.

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There have been substantial, sometimes rancorous, debates among polar bear researchers about this predator's prospects in a warming climate with less summer sea ice.

My take is that the tug of war over what's causing today's telegenic heat waves, floods, tempests — and even Arctic sea - ice retreats — distracts from the high confidence scientists have in the long - term (but less sexy) picture: that more CO2 will lead to centuries of climate and coastal changes with big consequences for a growing human population (for better and worse in the short run, and likely mostly for the worse in the long run).

It is that more CO2 will lead to a warming world with less ice, higher seas and changing climes.

Even as the long - term trend in the Arctic is toward less sea ice in summers, for decades to come — and routinely in other seasons — any nation with interests in the far north will need to be able to navigate in heavy ice.

The good news is that even with a reduction to less than 50 % of the current amount of sea ice the ice will not reach a point of no return: a level where the ice no longer can regenerate itself even if the climate was to return to cooler temperatures.

A scenario with this rate of ice reduction suggests that the Arctic Sea will be completely ice - free in summer time in less than two decades.

Beluga has two other ships carrying goods along the northern sea route this summer, and the expectation is that such trade will expand given projections of Arctic summers with ever more open water and less sea ice.

Following this summer's new record ice loss, the Arctic will enter a winter with even less ice than ever before, leading to even thinner ice, which barring any monumental external events like a major volcanic eruption, will likely perpetuate the trend in sea ice decline.

A related alternative metaphor, perhaps less objectionable while still making the most basic point, comes to mind in connection with an image of crashing of massive ice sheets fronts into the sea — an image of relevance to both climate tipping points and consequences (sea level rise).

As intriguing a concept as it is, a «tipping point» is less useful if poorly defined quantitatively or largely unknown, as apparently is the case with two key examples that you cite: thermohaline circulation and substantial melting of ice sheets leading to «dangerous» sea level rise.

Sea ice less than one year old was somewhat thicker than has been observed in recent years, with a modal thickness around 1.8 m, after one of the coldest North American winters in recent years.

Compared to spring 2011, the old ice in the Beaufort Sea in May 2012 appears to be somewhat more consolidated and older overall (which typically implies thicker ice), with more ice of three years of age or greater and less first - year ice mixed in.

We know that sea level is rising at between 2.5 mm and 3 mm per decade - which is a nonissue - so what is the net problem with less ice in the arctic?

«The good news,» said Sven Funder, a co-author of the Science study, «is that even with a reduction to less than 50 % of the current amount of sea ice the ice will not reach a point of no return.»

If either ice sheet were to lose mass at a rate with doubling time of 10 years or less, multi-meter sea level rise would occur this century.

With impacts on Arctic coastal communities and increases in maritime activities, both observations of changes underway and predictions at the scale of less than a week to several months out are of importance to the research community and those living and operating in ice - covered seas.

As one goes further north toward the North Pole, the length of the shortwave radiation season is shortened with less ability to melt out multi-year sea ice (D. Perovich, personal communication).

1 it is less than 1m sq km of Sea Ice EXTENT so, suppose your best instrument is a satellite with a 25 sqkm footprint.

The July 2008 pattern was consistent with the shift in sea ice conditions with more ice on the Siberian side and less in the Beaufort Sea than in 20sea ice conditions with more ice on the Siberian side and less in the Beaufort Sea than in 20Sea than in 2007.

«Time periods with less than twice the modern global ice volume show almost no indications of sea level rise faster than about 2 metres per century,» said Dr Grant.

Peak abundances of the small subpolar planktic foraminifer species Turborotalita quinqueloba found in MIS 5e sediments from the southern Lomonosov Ridge close to the Greenland continental margin (Site GreenICE, Fig. 1), a region with a modern perennial sea ice cover, may indicate less sea ice than today45.

(4) Last Interglacial (MIS 5e / Eemian) with a more or less closed sea ice cover situation over Core PS2757 - 8, preventing phytoplankton and sea ice algae productivity, and probably ice - free conditions towards the East Siberian shelf.

I do however completely disagree with her «50 % or less» assessment of the role of anthropogenic forcing in sea ice decline and Arctic changes in general.

Heat from Arctic amplification over normal conditions in these regions is much smaller than on the other side of the pack because the ice covered these seas longer this year; The heat added due to Arctic amplification probably less than 6... and with most of that in the Beaufort, and not in the Chukchi and E. Siberian.

Comparison of sea ice age during the second full week of September reveals that the Arctic will enter the winter ice growth season with less multiyear ice (bright colors), but far more first - year ice (dark blue) this year than it did in 2007.

In forcing the model with these winds, only the case of using winds from 2007 to project 2008 sea ice extent produce less sea ice than the observed 2007 ice extent (Ensemble member 7).

Lukovich and Barber: The results from an investigation of stratospheric circulation in winter and spring, and comparison of summertime surface winds and SLP with vortex splitting and minima in sea ice extent composites suggested that the September, 2009 ice extent would be comparable to or less than the September ice extent minimum in 2008, based on dynamic considerations.

One member's 2008 outlook (Kalaeschke) went from less sea ice to more sea ice compared to 2007; this was based on applying a different method with a stronger weighting for initial conditions.

Taylor also debunked the notion that less sea ice means less polar bears by pointing out that southern regions of the bears» home with low levels of ice are seeing booming bear populations.

A Cool Ocean with frozen Arctic Sea Ice delivers Less Snow.

Polar bears are one of the most sensitive Arctic marine mammals to climate warming because they spend most of their lives on sea ice.35 Declining sea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice.35 Declining sea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionsea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea regionSea region.45

Apparently, since data such as the all time record HIGH Antarctic sea ice, advancing Arctic sea ice, slowing to non existent GMSL at less than 2 / mm annual (and negative in some recent years), flat to lower global temps for almost 2 decades, and all the myriads of other associated data... flatly, empirically, REFUTE this cadre of AGW grant leaching con artists pretending to do science with grossly false models....