Sentences with phrase «ice mass loss from»

Velicogna, I. Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE.

«Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE.»

We hypothesize that ice mass loss from the most vulnerable ice, sufficient to raise sea level several meters, is better approximated as exponential than by a more linear response.

I know that there is now widespread disquiet about the potential for rapid ice mass loss from the WAIS and the GIS (century scale).

Velicogna (2014) Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time - variable gravity data.

Atmospheric warming does not appear to contribute to ice mass loss from either the EAIS or WAIS, other than the «Peninsula».

That seems questionable, as is the suggestion that some 50 % of future SLR could come from ice mass loss from the East Antarctic Ice Sheet.

SLR by 2100 is more likely to come from ice mass loss from West Antarctica (WAIS) where warm ocean currents are already melting ice at glacier mouths and attacking areas of the WAIS resting on the seabed.

Thanks to GRACE satellite monitoring, there is a good gravity record of ice mass loss from Greenland from the period 2002 - present.

Rignot et al., Recent Antarctic ice mass loss from radar interferometry and regional climate modelling, Nature Geoscience 1, 106 — 110 (2008)

The IPCC projects that ice mass loss from melting of the Greenland ice sheet will continue to outpace accumulation of snowfall.

Not exact matches

Within a few years, the main outlet glacier draining the region — Zachariae Isstrom — retreated about 20 kilometers, and regional ice mass loss jumped from zero to roughly 10 metric gigatons a year.

The drought that is devastating California and much of the West has dried the region so much that 240 gigatons worth of surface and groundwater have been lost, roughly the equivalent to a 3.9 - inch layer of water over the entire West, or the annual loss of mass from the Greenland Ice Sheet, according to the study.

Complementary analyses of the surface mass balance of Greenland (Tedesco et al, 2011) also show that 2010 was a record year for melt area extent... Extrapolating these melt rates forward to 2050, «the cumulative loss could raise sea level by 15 cm by 2050 ″ for a total of 32 cm (adding in 8 cm from glacial ice caps and 9 cm from thermal expansion)- a number very close to the best estimate of Vermeer & Rahmstorf (2009), derived by linking the observed rate of sea level rise to the observed warming.

«The fact that the mass loss of the Greenland Ice Sheet has generally increased over the last decades is well known,» Khan said, «but the increasing contribution from the northeastern part of the ice sheet is new and very surprising.&raqIce Sheet has generally increased over the last decades is well known,» Khan said, «but the increasing contribution from the northeastern part of the ice sheet is new and very surprising.&raqice sheet is new and very surprising.»

But that could soon change, Rignot said, because the rate at which ice sheets are losing mass is increasing three times faster than the rate of ice loss from mountain glaciers and ice caps.

Subtracting one from the other produced a «mass - balance» picture of net ice loss or growth for each ice sheet.

The IceCon project [8] is investigating Antarctic ice mass balance - the rate of loss of ice from the continent.

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.

The reconstructed curve includes isolated rapid events of several decimetres within a few centuries, one of which is most likely related to loss from the Antarctic ice sheet mass around 5000 years before present.

The findings, published Monday in Nature Geoscience, reveal that the 1997 - 98 El Niño led to a substantial loss of mass from the bottom of the ice shelves in West Antarctica's Amundsen sea sector, even as the shelves appeared to grow about ten inches taller from additional snowfall.

Joughin et al. (2010) applied a numerical ice sheet model to predicting the future of PIG, their model suggested ongoing loss of ice mass from PIG, with a maximum rate of global sea level rise of 2.7 cm per century.

Rates of sea - level rise calculated from tide gauge data tend to exceed bottom - up estimates derived from summing loss of ice mass, thermal expansion and changes in land storage.

In the figure right, from Rignot et al. 2008, you can see that mass losses from Pine Island Glacier and Thwaites Glacier dominate Antarctic Ice Sheet ice lossIce Sheet ice lossice losses.

Indeed, previously scientists thought that the loss of ice mass from Greenland and Antarctica alone was driving a polar shift.

Our modelled values are consistent with current rates of Antarctic ice loss and sea - level rise, and imply that accelerated mass loss from marine - based portions of Antarctic ice sheets may ensue when an increase in global mean air temperature of only 1.4 - 2.0 deg.

Most of the mass - loss is apparently from ice - dynamics, which was apparently not considered at least in the first study you linked to.

From recent instrumental observations alone we are therefore unable to predict whether mass loss from these ice sheets will vary linearly with changes in the rate of sea - level rise, or if a non-linear response is more likFrom recent instrumental observations alone we are therefore unable to predict whether mass loss from these ice sheets will vary linearly with changes in the rate of sea - level rise, or if a non-linear response is more likfrom these ice sheets will vary linearly with changes in the rate of sea - level rise, or if a non-linear response is more likely.

Under all RCP scenarios the rate of sea level rise will very likely exceed that observed during 1971 — 2010 due to increased ocean warming and increased loss of mass from glaciers and ice sheets.

However, the idea is simple, and I've talked about this much in many presentations this winter: Take the amount of ice you need to get rid of from Greenland to raise sea level 2 m in the next century, reduce it by your best estimate of the amount that would be removed by surface mass balance losses, and try to push the rest out of the aggregate cross-sectional area of Greenland's marine - based outlet glaciers.

The lower trend found by our study is consistent with the median projected sums of thermal expansion and glacier mass loss, implying that no net contribution from polar ice sheets is needed over 1901 - 1990.

al) suggest radiative loss to space, but they also include references relating to warming bottom water, deepening tropical gyre warm bowls, and increased mass loss from the Antarctic and Geenland ice sheets.

The contribution from glaciers and ice caps (not including Greenland and Antarctica), on the other hand, is computed from a simple empirical formula linking global mean temperature to mass loss (equivalent to a rate of sea level rise), based on observed data from 1963 to 2003.

Thus, whatever the contribution of mass loss from the Greenland ice sheet to the huge (4 - 8 m) rise in sea level of the Eemian, it occurred under very strong temperature forcing.

The acceleration increased the mass loss from 5 km3 ice / year in 1996 (12) to 36 km ice / year in 2005 (Table 1), which is 6 % of Greenland's total accumulation.

A rise in global mean sea level of between 0.09 and 0.88 metres by 2100 has been projected, mainly due to the thermal expansion of sea water and loss of mass from ice caps and glaciers».

The ice mass loss observed in this research was a change from the trend of losing 113 ± 17 gigatons per year during the 1990s, but was smaller than some other recent estimates (Luthcke et al. 2006).

We suggest that mass loss from disintegrating ice sheets probably can be approximated better by exponential mass loss than by linear mass loss.

Most of the mass loss came from the West Antarctic Ice Sheet (Velicogna and Wahr 2006b).

Yet the rate of ice loss from these two polar realms, as identified by satellite measurements of the change in gravity of the ice masses, has more than doubled over the last decade.

Ice mass loss is occuring at an accelerated rate in Greenland, Antarctica and globally from inland glaciers.

These authors use an ice sheet model within a Bayesian statistical framework — in which critical processes are guided by expert synthesis — to simulate the mass loss from the entire Antarctic ice sheet to 2200.

Even if it is 1.6, that is enough to seriously reduce the size of the Greenland Ice Sheet, and the rate of mass loss from that is still doubling every 10 years.

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.

Has the discussion of sea level rise as a non linear response to forcings and acceleration of mass loss from the Greenland and Antarctic ice caps.

Annual net balance on eight North Cascades glaciers during the 1984 - 1994 period has been determined by measurement, of total mass loss from firn and ice melt and, of residual snow depth at the end of the summer season.

Should thank Fan for bringing up ice - mass loss «inferred» from gravimetric interferometry.

GRACE interferometry is sufficiently sensitive that many skeptics (angech for example) believes that ice - mass loss inferred from gravimetric interferometry can't be real!

The rate of ice mass loss in the Russian Arctic has nearly doubled over the last decade when compared to records from the previous 60 years, a new study shows.

«It is very likely that the rate of global mean sea level rise during the 21st century will exceed the rate observed during 1971 — 2010 for all Representative Concentration Pathway (RCP) scenarios due to increases in ocean warming and loss of mass from glaciers and ice sheets.