The Himalayas contain the world's third
largest ice mass after Antarctica and Greenland.
The East Antarctic ice sheet is
the largest ice mass on Earth, roughly the size of Australia.
Anyone who accepts that sunlight falling on ice free waters which has less reflectivity than sunlight falling on
a large ice mass covering those waters and also accepts that this reduction in albedo has a positive feedback effect, leading to further warming, can't help but opt for A or B, it seems to me.
Indeed, satellite gravity data and radar altimetry reveal that the Totten Glacier of East Antarctica, which fronts
a large ice mass grounded below sea level, is now losing mass [90].
The ocean itself has begun to invade the much
larger ice masses beyond the Fjord.
These differences from location to location can be caused by a variety of processes, but two of the most important are (1) winds blowing over the ocean and (2) melting of
large ice masses.
Not exact matches
For more than a decade these Earth - observing satellites have provided some of the first environmental measurements on a global scale, including
large - scale changes in the
mass of polar
ice.
This new map allows scientists to determine the age of
large swaths of the second
largest mass of
ice on Earth, an area containing enough water to raise ocean levels by about 20 feet.
In North America, the
Ice Age was marked by the
mass extinction of several dozen genera of
large mammals, including mammoths, mastodons, American horses, Western camels, two types of deer, ancient bison, giant beaver, giant bears, sabre - toothed cats, giant bears, American cheetahs, and many other animals, as well as plants.
However, Pluto's basin is significantly
larger than the volume of
ice it contains today, suggesting that Pluto's heart has been slowly losing
mass over time, almost as if it was wasting away.
«By refining the spatial pattern of
mass loss in the world's second
largest — and most unstable —
ice sheet, and learning how that pattern has evolved, we are steadily increasing our understanding of
ice loss processes, which will lead to better - informed projections of sea level rise.»
When CryoSat was first conceived more than a decade ago, its main objective was to determine whether Earth's
large ice sheets were losing
mass at all.
The movement of these
large masses of
ice also leaves distinct marks on the walls of valleys and in the form of deposits of glacial sediment.
«At the same time, the
mass loss on the
ice sheet is not very
large compared to how much
mass they store.»
The Cordilleran
Ice Sheet covered large parts of North America during the Pleistocene - or last ice age - and was similar in mass to the Greenland Ice She
Ice Sheet covered
large parts of North America during the Pleistocene - or last
ice age - and was similar in mass to the Greenland Ice She
ice age - and was similar in
mass to the Greenland
Ice She
Ice Sheet.
The first colonists probably contributed to the
mass extinction of
large animals like mastodons, which died out as the
ice age ended 12,000 years ago.
The Quelccaya
ice - cap, covering 17 square miles (44 sq km) in the Cordillera Oriental region of the Peruvian Andes, is the world's
largest tropical
ice mass.
Discovered in 1978 by the United States Naval Observatory, Charon is the
largest of Pluto's five moons and is only half the size of Pluto and one - eighth of its
mass, with a surface dominated by a mixture of water
ice and frozen ammonia.
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 limit
Ice Sheet is unlikely, as it is mostly grounded above sea level and so
mass loss from calving
ice bergs is limit
ice bergs is limited.
Circling the star Gliese 436, 30 light years from Earth, was an
ice - giant planet that was calculated by Swiss and Belgian scientists to be at least 22 Earth
masses, slightly
larger than the
mass of Neptune.
This implies that
large - scale observations — for example, of global mean sea - level change or of the change
mass of the Antarctic
ice sheet — will not on their own significantly narrow the range of late - century sea - level projections for decades to come.
The Antarctic
ice sheet is the
largest single
mass of
ice on Earth.
«We think we now have identified a new tool, and that's the polar motion data, to be able to put bounds on how
large the natural variability may be in terms of
ice mass....
This
ice mass is part of the Columbia Icefield and is the
largest in a chain of glaciers along Canada's Great Divide Trail.
Walking along the narrow cobblestone Rue Saint - Jean today, you will mostly see small cafes, English - style pubs, restaurants and few dozen or so
ice cream shops catering to the
masses of visitors that descend upon the city during the summer months and the city's
large University population.
A highlight of this Canadian Rockies tour is a journey on Icefields Parkway to savor stunning views of alpine meadows, waterfalls, and glacier
masses followed by a thrilling ride aboard an
Ice Explorer on the Columbia Icefield, the largest expanse of ice in the Canadian Rocki
Ice Explorer on the Columbia Icefield, the
largest expanse of
ice in the Canadian Rocki
ice in the Canadian Rockies.
I think these are simply features of global climate that are embedded and as predictable as other
large features like hurricane patterns, the gulf stream, the jet stream, sea
ice extent and
mass, global glacial conditions, sea level etc..
My hunch is the few
large glaciers draw from the central
ice mass through «gateways» and the many smaller glaciers instead form mostly from snowfall on the outside of the ring of mountains around the icecap.
This
ice sheet is losing
mass at a rather
larger rate (around 220 cubic kilometres per year) and it will take only another 1 - 2 oC world warming to raise the summer melt zone to the top of the Greenland
ice pack after which point, in my understanding, the
ice sheet will go into irreversible melt.
Eric Rignot most recent work in 2008 supported a
larger, accelerating contribution of Antarctica's
ice mass balance to the rise in sea level.
This is despite using observed
ice sheet
mass loss (0.19 mm / year) in the «modelled» number in this comparison, otherwise the discrepancy would be even
larger — the
ice sheet models predict that the
ice sheets gain
mass due to global warming.
The ongoing flux of mantle material into areas which have experienced
large - scale
ice -
mass loss since the LGM looks like
mass gain to GRACE.
The
mass balance and d13C balance shows that vegetation as sink is not
large enough to absorb all human CO2 if the oceans are a source and
ice cores show that CO2 and temperature go to a (surprisingly linear) new equilibrium for every change in temperature level, not a sustained increase or decrease.
In theory, if a
large mass of glaciers or
ice sheets melted, this could cause a global sea level rise.
By 2002, publications were able to report that both
large ice sheets were losing
mass (Rignot and Thomas 2002).
The end result is the glaciers accelerate seaward, causing dynamic thinning, increased calving, and a
large loss of
ice mass that continues until a new equilibrium is established.
A
large area of the West Antarctic
Ice Sheet is also losing
mass, probably because of warmer water deep in the ocean near the Antarctic coast.
She has conducted extensive research on the two
largest masses of
ice on Earth — the Antarctic and Greenland
ice sheets — with the goal of understanding how these entities are shrinking and contributing to sea level rise as the planet's climate warms.
Downes, S.M., R. Farneti, P. Uotila, S.M. Griffies, S.J. Marsland, D. Bailey, E. Behrens, M. Bentsen, D.H. Bi, A. Biastoch, C. Boning, A. Bozec, V.M. Canuto, E. Chassignet, G. Danabasoglu, S. Danilov, N. Diansky, H. Drange, P.G. Fogli, A. Gusev, A. Howard, M. Ilicak, T. Jung, M. Kelley, W.G.
Large, A. Leboissetier, M. Long, J.H. Lu, S. Masina, A. Mishra, A. Navarra, A.J.G. Nurser, L. Patara, B.L. Samuels, D. Sidorenko, P. Spence, H. Tsujino, Q. Wang, and S.G. Yeager, 2015: An assessment of Southern Ocean water
masses and sea
ice during 1988 - 2007 in a suite of interannual CORE - II simulations.
Insights from this study suggests that
large sectors of contemporary
ice sheets overlying geothermally active regions, such as Siple Coast, Antarctica, and NE Greenland, have the potential to experience rapid phases of
mass loss and deglaciation once initial retreat is initiated.
As for future influences of melting glaciers, consider that the Arctic, which goes through regular 60 - to 70 - year - long warming and cooling cycles, has most recently been losing some
ice mass, while most of the vastly
larger Antarctic continent has been gaining.
The key factor w / r / t sea - level rise is grounded
ice mass balance, especially in the world's two (or three, depending on how you count) remaining
large ice sheets: Greenland and Antarctica.
Present uncertainties of
ice shelf
mass loss are
large, however, with estimates of their contribution to sea level rise ranging from a few centimeters to over one meter.
The bright white central
mass shows the perennial sea
ice, which is just the multi-year
ice that has survived at least one summer, while the
larger light blue area shows the full extent of the winter sea
ice including the average annual sea
ice during the 2012 months of November, December and January.
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
Like glaciers,
ice sheets are
large masses of slow - moving
ice formed from layers of compacted snow.
LONDON, 13 April — Greenland — the
largest terrestrial
mass of
ice in the northern hemisphere — may be melting a little faster than anyone had guessed.
«As we approach 2 degrees, many models suggest that tipping points will be reached with respect to summer sea
ice and these
large masses of glacial
ice,» McCarthy told The Yale Forum in an e-mail interview.
The candidates are: 1) Latent heat of fusion (melting
ice) 2) Dry continental land
masses 3) The oceans Not knowing anything else but basic first physical principles and having general knowledge about the composition of the system, the most plausible
largest heat sink in the system is (3).
It covers about 98 % of the Antarctic continent and is the
largest single
mass of
ice on Earth.