Sentences with phrase «ice mass grounded»

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].

Not exact matches

Scientists had previously considered the region's ground ice to be in equilibrium, meaning its seasonal melting and refreezing did not, over time, diminish the valley's overall mass of ground ice.

The East Antarctic Ice Sheet is the only ice sheet likely to gain in mass, but even this ice sheet has the potential to rapidly lose ice volume around its marine - grounded sectoIce Sheet is the only ice sheet likely to gain in mass, but even this ice sheet has the potential to rapidly lose ice volume around its marine - grounded sectoice sheet likely to gain in mass, but even this ice sheet has the potential to rapidly lose ice volume around its marine - grounded sectoice sheet has the potential to rapidly lose ice volume around its marine - grounded sectoice volume around its marine - grounded sectors.

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.

Among the earliest works is Breathing (1996), for which Song lay on the stone pavement of Tianenmen Square and used his own breath to create a pad of ice on freezing ground, allowing himself to make a fleeting personal impact on a site that is a symbol for power of the masses.

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.

As so much of the GIS is grounded below sea - level, it seems to me that the key to any possible catastrophic mass loss is the Jacobshavn effect: the ungrounding of the marine front as the ice thins and becomes buoyant.

We quantify sea - level commitment in the baseline case by building on Levermann et al. (10), who used physical simulations to model the SLR within a 2,000 - y envelope as the sum of the contributions of (i) ocean thermal expansion, based on six coupled climate models; (ii) mountain glacier and ice cap melting, based on surface mass balance and simplified ice dynamic models; (iii) Greenland ice sheet decay, based on a coupled regional climate model and ice sheet dynamic model; and (iv) Antarctic ice sheet decay, based on a continental - scale model parameterizing grounding line ice flux in relation to temperature.

(Ice sheet mass balance (MB) is the difference between surface mass balance (SMB) and solid ice discharge across the grounding line (DIce sheet mass balance (MB) is the difference between surface mass balance (SMB) and solid ice discharge across the grounding line (Dice discharge across the grounding line (D).)

icing a sheet - like mass of layered ice formed by the freezing of water as it emerges from the ground or through fractures in river or lake ice

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

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.

A smaller mass of ice on a steep slope would continue to grind its way through the mountains but eventually disappears.

There has been no reduction in the surface area of grounded ice in the Greenland and Antarctic Ice Sheets, although the mass appears to have declined recently, at least in Greenland, if we can believe the GRACE results, which show more mass loss than earlier satellite altimetry measurements by Johannessen / Zwally (GRL) and Davis / Wingham (Antarctica), which showed net growth over the period 1993 - 20ice in the Greenland and Antarctic Ice Sheets, although the mass appears to have declined recently, at least in Greenland, if we can believe the GRACE results, which show more mass loss than earlier satellite altimetry measurements by Johannessen / Zwally (GRL) and Davis / Wingham (Antarctica), which showed net growth over the period 1993 - 20Ice Sheets, although the mass appears to have declined recently, at least in Greenland, if we can believe the GRACE results, which show more mass loss than earlier satellite altimetry measurements by Johannessen / Zwally (GRL) and Davis / Wingham (Antarctica), which showed net growth over the period 1993 - 2003.

During an interval when sea level is forced upward from a major low stand by a Milankovitch response acting either alone or in combination with an internally driven, higher - frequency process, ice sheets grounded on continental shelves become unstable, mass wasting accelerates, and the resulting deglaciation sets the phase of one wave in the train of 100,000 - year oscillations.