Sentences with phrase «ice mass above»

Until that moment, the buoyancy of that section (i.e. whether or not it has enough ice mass above sea level to remain grounded if exposed to the sea) has been irrelevant.

Meltwater reaches the base of ice sheets through basal melting from geothermal heating and by ice melting under pressure from the weight of the ice mass above.

Not exact matches

Meanwhile, the mass of ice above acts like an insulating blanket.

A large contribution from the Greenland Ice Sheet is unlikely, as it is mostly grounded above sea level and so mass loss from calving ice bergs is limitIce Sheet is unlikely, as it is mostly grounded above sea level and so mass loss from calving ice bergs is limitice bergs is limited.

His «we do not know of a time with permanent ice at the poles and CO2 above 1000pmmv» (except, of course, prior to the big thaw in snowball Earth), and the present rate of increase of atmospheric CO2 being c. 10x greater than previous mass extinctions as far as we know (albeit the total mass being less) are deeply worrying.

The planet's mass and diameter are consistent with the hypothesis that it has a low average density due to an inferred composition of three - fourths water (possibly 47 percent) and other ices (that have subliminated into a «supercritical fluid» above an «electronically conductive,» dense fluid plasma below a steamy atmosphere) and one - fourth rock and iron in the core.

The GRACE data offers a complete picture of the entire ice sheet, allowing comparisons of mass changes in coastal regions (eg - elevations below 2000 metres) with the Greenland interior (above 2000 metres).

``... Arctic temperatures have been well above normal this winter, Greenland's surface ice mass...» grows.

And although Arctic temperatures have been well above normal this winter, Greenland's surface ice mass continues at its rampage record level:

AGW climate scientists seem to ignore that while the earth's surface may be warming, our atmosphere above 10,000 ft. above MSL is a refrigerator that can take water vapor scavenged from the vast oceans on earth (which are also a formidable heat sink), lift it to cold zones in the atmosphere by convective physical processes, chill it (removing vast amounts of heat from the atmosphere) or freeze it, (removing even more vast amounts of heat from the atmosphere) drop it on land and oceans as rain, sleet or snow, moisturizing and cooling the soil, cooling the oceans and building polar ice caps and even more importantly, increasing the albedo of the earth, with a critical negative feedback determining how much of the sun's energy is reflected back into space, changing the moment of inertia of the earth by removing water mass from equatorial latitudes and transporting this water vapor mass to the poles, reducing the earth's spin axis moment of inertia and speeding up its spin rate, etc..

Although the satellites are considered the gold - standard for measuring and observing sea levels, hurricanes / typhoons, ozone holes, sea ice, atmospheric CO2 distribution, polar ice sheet masses and etc., the same 24/7 technology used to measure temperatures across the entire habitable world is now being ignored (i.e., denied) due to the above inconvenient evidence.

Even if the 2008 summer sea ice minimum extent appeared to be slightly above the 2007 all - time record minimum, according to passive radiometers, it does not seem like the ice mass budget is significantly different in 2008 compared with 2007.

Another consideration is that ice in shallow depressions may not move while the mass above grinds past.

The mass balance at the calving front is the sum of the ice flux from upglacier, the rate of melting above and below the waterline and the iceberg - calving rate.

NOTE: this doesn't mean the ice sheet was gaining ice before 2006 but that ice mass was above the 2002 to 2010 average.

The Earth's crust is responding to rising temperatures: volcanoes previously imprisoned below ice sheets are more likely to erupt; earthquakes in the Himalayas, the Andes and Alaska may be triggered as the ice load shrinks; and, the solid Earth beneath Greenland is bouncing back quickly as the ice above it melts, perhaps with the Antarctic land mass not far behind.

In 2005 the Greenland ice sheet lost around 53 cubic miles (220 cubic kilometers) of mass — more than two times the amount it lost in 1996 (22 cubic miles, or 90 cubic kilometers).5 The melt area set a new record in 2007: it was about 60 percent larger than the previous record in 1998, and extended farther inland.7, 8 By 2007 the melt season at elevations above 6,500 feet (2,000 meters) was a month longer than the average from 1988 to 2006.9

To say nothing of the warming trends also noticed in, for example: * ocean heat content * wasting glaciers * Greenland and West Antarctic ice sheet mass loss * sea level rise due to all of the above * sea surface temperatures * borehole temperatures * troposphere warming (with stratosphere cooling) * Arctic sea ice reductions in volume and extent * permafrost thawing * ecosystem shifts involving plants, animals and insects

In contrast, global temperature in at least the past two decades is probably outside the Holocene range (7), as evidenced by the fact that the Greenland and Antarctic ice sheets are both losing mass rapidly (8, 9) and sea level has been rising at a rate [3 m / millennium, (10); updates available at http://sealevel.colorado.edu/] well above the average rate during the past several thousand years.

Melting ice that sits above sea level nearer the poles ends up adding more more mass nearer the equator as the now liquid water distributes itself across the globe at sea level.