Sentences with phrase «reducing ice extent»

Changing winds could still push ice flows together, reducing ice extent further.

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.

Suppose that there has been a multi-century increase in the poleward heat transport in the oceans due to internal variability, which warms the poles, reduces ice extent and albedos, and thereby warms the planet.

So regardless of whether atmospheric temperatures, SSTs or OHC fails to increase, and ignoring the multitude of complexities involved, reduced ice extent is clear evidence of AGW.

Negative AO reduces ice extent at the margins in the North Atlantic

This resulted in the transport of multiyear ice out of the Arctic Ocean, setting the stage for reduced ice extent (Rigor et al. 2004)

Not exact matches

This suggests that atmospheric carbon dioxide concentrations of 400 ppm may be sufficient to greatly reduce the spatial extent and seasonal persistence of Arctic sea ice.

However, recent calving rates have been shown to be negatively correlated with ice cover extent, indicating population growth is faster when ice cover is reduced and feeding habitat is extended [20].

The scenarios show a warming of 1.9 — 3.8 K. Sea ice extent is distinctly reduced in the scenarios.

Results showed the storm caused the sea ice to pass the previous record 10 days earlier in August than it would have otherwise, but only reduced the final September ice extent by 150,000 square kilometers (almost 60,000 square miles), less than a 5 percent difference.

... reduced sea ice extent has altered, and in the future may continue to alter, ocean circulation, ocean productivity and regional climate and will have direct impacts on shipping and mineral and oil exploration (see WGII, Chapter 28).

As the link below shows, sea ice extent has been dramatically reduced since 1979.

However the sea ice September extent can be expected to fall to a much reduced level by 2015, and possibly earlier — even this year is on the cards.

The decrease has been greatest during summer, with sea ice extent reducing by around 12 % per decade since the satellite record began in 1979.

We interpret the split of 2013 Outlooks above and below the 4.1 level to different interpretations of the guiding physics: those who considered that observed sea ice extent in 2012 being well below the 4.1 level indicates a shift in arctic conditions, especially with regard to reduced sea ice thickness and increased sea ice mobility; and those who have estimates above 4.1 who support a return to the longer - term downward trend line (1979 - 2007).

We interpret the split of 2013 Outlooks above and below the 4.1 median to different interpretations of the guiding physics: those who considered that observed sea ice extent in 2012 being well below the 4.1 level indicates a shift in arctic conditions, especially with regard to reduced sea ice thickness and increased sea ice mobility; and those with estimates above 4.1 who support a return to the longer - term downward trend line (1979 - 2007).

«However, ice loss continued north of the Laptev Sea, opening up a gap in the ice cover that reduced extent.»

Because walrus avoid ice - covered waters where sea ice concentration is 80 % or greater, any heavy ice concentrations reduce the areal extent of walrus foraging habitat.

Does this suggest a new level of reduced summer ice extent persisting at around 5.0 million square kilometers, relative to a value of 6.0 million square kilometers in the early 2000s?

The much - reduced extent of the oldest and thickest ice, in combination with other factors such as ice transport that assist the ice - albedo feedback by exposing more open water, help explain this large and abrupt ice loss.

Why has the argument moved from «ice extent» to «ice mass» — is the extent proxy no longer able to help support AGW — as it is no longer reducing and the artic is not playing ball.

Given current uncertainties, our global - scale estimate of reservoir GHG flux does not account for ice cover, but see the supplemental materials for an estimate of the extent to which ice cover could reduce annual - scale emissions (assuming no turnover emissions).

Noting the black line ensemble member, there is a single year event that dramatically reduces the sea ice extent, similar to what was observed in 2007.

«The current rate of sea ice loss, and the reduced thickness of large areas of the ice remaining, suggests that we may see yet another record minimum in summer sea ice extent this year.»

Land - based energy exploration will be affected by a shorter season when ice roads are viable, yet reduced sea ice extent may create more opportunity for offshore development.

With reduced September ice extent, the rebound to March maximum is strong, but with greater September sea ice extent the rebound to the next maximum is far less.

The model shows that reduced ozone would decrease the ice extent, opposite of what is happening.

Multi-year sea ice has been reduced to such low levels that the overall September sea ice extent is largely tied to the fate of the first - year sea ice, which appears thin or with low concentrations away from the central Arctic (see AMSR satellite data and the calculations by Lindsay and Rigor).

This is such an utter non-story — amounting to no more than «NSIDC have another year's worth of winter Arctic ice data» — that the only reason we can see for the BBC giving it the time of day is to guard against the possibility that people start filling their pretty heads with silly notions that the extent of summer Arctic sea ice varies from year to year, and that while it seems to have been reducing a bit over the last few decades, it hardly follows that it spells the end of the world as we know it.

A wide range of other observations (such as reduced Arctic sea ice extent and increased ocean heat content) and indications from the natural world (such as poleward shifts of temperature - sensitive species of fish, mammals, insects, etc.) together provide incontrovertible evidence of planetary - scale warming.

Accordingly research has estimated that during the cold nadir of each ice age, coral reef extent was reduced by 80 % and carbonate production was reduced by 73 % relative to today.

The roughly factor of two increase in speed shown is partly due to decreases in ice thickness and strength, but it is safe to predict that if cyclonic storm events like this one ending 2015 continue penetrating the eastern Arctic Ocean, they will increase ice export and reduce summer 2016 ice extent.

Alternatively, it may be the result of increased ocean heat transports due to either an enhanced thermohaline circulation (Raymo et al., 1989; Rind and Chandler, 1991) or increased flow of surface ocean currents due to greater wind stresses (Ravelo et al., 1997; Haywood et al., 2000), or associated with the reduced extent of land and sea ice (Jansen et al., 2000; Knies et al., 2002; Haywood et al., 2005).

A) Arctic sea ice minimums at the equinox in mid-September have only one real limit: they can continue to reduce to zero from their (typical) 4.0 million km ^ 2 extent minimum.

Arctic sea - ice has been declining since the late 1970s, reducing in extent by about 4 %, or 0.6 million square kilometres (an area about the size of Madagascar) per decade.

A combined lack of coherence in ice drift fields and reduced ice concentrations in April 2011 relative to April 2007 suggest that springtime ice dynamical contributions to fall sea ice extent may be associated with sea ice deformation and ridging within an increasingly mobile and fractured ice cover.

However, Ice extent in the Greenland Sea has reduced substantially during the first half of August 2010 (comparison of Figures 1 and 2).

Northward atmospheric winter fluxes are observed after the enhanced global warming after 1970, and, for the first time over the period considered, a positive correlation is observed between atmospheric and oceanic reducing effects on the ice extent.

6) Sea ice extent has been dramatically reduced since the 1950s.

These have been driven by reduced sea - ice extent and duration.