Sentences with phrase «global ice mass»

One can also add ice into the mix: global ice mass loss has accelerated in the last decade, despite what appears to be a surface temp flattening.

The total global ice mass lost from Greenland, Antarctica and Earth's glaciers and ice caps during the study period was about 4.3 trillion tons (1,000 cubic miles), adding about 0.5 inches (12 millimeters) to global sea level.

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.

It's a research approach new to glaciology that could lead to more accurate predictions for ice - mass loss and global sea - level rise.

The melting of Greenland contributes to the global sea level, but the loss of mass also means that the ice sheet's own gravitational field weakens and thus does not attract the surrounding sea as strongly.

The reduction in the ice mass has contributed to global average sea - level rise of 25 millimeters.

The results highlight how the interaction between ocean conditions and the bedrock beneath a glacier can influence the frozen mass, helping scientists better predict future Antarctica ice loss and global sea level rise.

To reach further back in time and provide a long - term record that can inform global climate models, scientists are turning to other means of measuring ice mass.

Rising global temperatures have also made glaciers — ice masses that currently occupy nearly 10 percent of the world's total land area — increasingly unstable.

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.

Mitrovica, J. X., Tamisiea, M. E., Davis, J. L. & Milne, G. A. Recent mass balance of polar ice sheets inferred from patterns of global sea - level change.

During glaciation, water was taken from the oceans to form the ice at high latitudes, thus global sea level drops by about 120 meters, exposing the continental shelves and forming land - bridges between land - masses for animals to migrate.

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.

and therefore to be able to make a stronger statement on how unique the current and apparently global warming related ice mass loss is» for Greenland, he says.

An ice age is brought on by the effects of global warming and paleoclimatologist Jack Hall struggles through the masses fleeing south for warmer climate on his way north to reunite with his son.

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.

«suggesting that Arctic warming will continue to greatly exceed the global average over the coming century, with concomitant reductions in terrestrial ice masses and, consequently, an increasing rate of sea level rise.»

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..

-- Climate impacts: global temperatures, ice cap melting, ocean currents, ENSO, volcanic impacts, tipping points, severe weather events — Environment impacts: ecosystem changes, disease vectors, coastal flooding, marine ecosystem, agricultural system — Government actions: US political views, world - wide political views, carbon tax / cap - and - trade restrictions, state and city efforts — Reducing GHGs: + electric power systems: fossil fuel use, conservation, solar, wind, geothermal, nuclear, tidal, other + transportation sector: conservation, mass transit, high speed rail, air travel, auto / truck (mileage issues, PHEVs, EVs, biofuels, hydrogen) + architectural structure design: home / office energy use, home / office conservation, passive solar, other

The total 2000 — 2008 mass loss of ~ 1500 gigatons, equivalent to 0.46 millimeters per year of global sea level rise, is equally split between surface processes (runoff and precipitation) and ice dynamics.

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.

• Current global model studies project that the Antarctic ice sheet will remain too cold for widespread surface melting and is expected to gain in mass due to increased snowfall.

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.

Given the level of denialism in the face of glacial mass loss, plummeting Arctic summer ice cover, progressive collapse of ice shelves that have been stable for 6000 to 10000 years, northward, upward, and seasonally earlier movements of ecosystems and other phenological changes, increasing Greenland ice melt, and all the other direct observations of global warming, I think denialists will go to their graves believing it can't be happening.

The overall global glacier mass balance trend is shown on the National Snow and Ice Data Center (NDIS) graph here.

In light of this prediction and global climate model forecasts for continued high - latitude warming, the ice sheet mass budget deficit is likely to continue to grow in the coming decades.

Arctic sea ice continues to decline rapidly, as does global glacier mass.

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».

bozzza - The differences in the Arctic are perhaps 1/4 the ocean thermal mass as global ocean averages, small overall size (the smallest ocean), being almost surrounded by land (which warms faster), more limited liquid interchanges due to bottlenecking than the Antarctic, and very importantly considerable susceptibility to positive albedo feedbacks; as less summer ice is present given current trends, solar energy absorbed by the Arctic ocean goes up very rapidly.

If all of the currently attainable carbon resources [estimated to be between 8500 and 13.600 GtC (4)-RSB- were burned, the Antarctic Ice Sheet would lose most of its mass, raising global sea level by more than 50 m. For the 125 GtC as well as the 500, 800, 2500, and 5000 GtC scenarios, the ice - covered area is depicted in white (ice - free bedrock in browIce Sheet would lose most of its mass, raising global sea level by more than 50 m. For the 125 GtC as well as the 500, 800, 2500, and 5000 GtC scenarios, the ice - covered area is depicted in white (ice - free bedrock in browice - covered area is depicted in white (ice - free bedrock in browice - free bedrock in brown).

We know from satellite measurements that the Greenland and West Antarctic ice sheets (GIS and WAIS respectively) are losing mass in response to global warming, and that, in the case of the partly sea - based West Antarctica ice - sheet, basal melting of the ice by warmer ocean - water is likely to be a key mechanism.

The backdrop to the renewed interest in asserting territorial claims on the Arctic and Antarctic by states such as Canada, the United States, Russia and the United Kingdom is that global warming, and in particular the warming of oceans, is leading to accelerating erosion of the ice mass at both poles.

Because ice sheets contain so much ice and have the potential to raise or lower global sea level so dramatically, measuring the mass balance of the ice sheets and tracking any mass balance changes and their causes is very important for forecasting sea level rise.

Between April 2002 and April 2006, GRACE data uncovered ice mass loss in Greenland of 248 ± 36 cubic kilometers per year, an amount equivalent to a global sea rise of 0.5 ± 0.1 millimeters per year.

In theory, if a large mass of glaciers or ice sheets melted, this could cause a global sea level rise.

Also, ice masses occur over cold regions — are ice cores true measures of global or regional climate - shift dynamics?

To assess these implications, we translate global into local SLR projections using a model of spatial variation in sea - level contributions caused by isostatic deformation and changes in gravity as the Greenland and Antarctic ice sheets lose mass (36 ⇓ — 38), represented as two global 0.5 ° matrices of scalar adjustment factors to the ice sheets» respective median global contributions to SLR and (squared) to their variances.

If both Greenland and West Antarctica shed the entirety of their ice burden, global sea levels would rise by 12 to 14 m. Although these icecaps would not disintegrate within a century, the loss of even a third of their mass — quite plausible if the rate of polar ice loss continues to double each decade — would force up the oceans by at least 4 m, with disastrous socioeconomic and environmental consequences.

The unmitigated exposure to prophecies of imminent ice ages, looming hell fire, mass starvation, mega-droughts, global epidemics and mass extinction is an experience I would not recommend to anyone with a thin - skinned disposition (although the news media couldn» t get enough of it).

The confusion on this subject lies in the fact that only about 2 percent of global warming is used in heating air, whereas about 90 percent of global warming goes into heating the oceans (the rest heats ice and land masses).

Besides these thousands of thermometer readings from weather stations around the world, there are many other clear indicators of global warming such as rising ocean temperatures, sea level, and atmospheric humidity, and declining snow cover, glacier mass, and sea ice.

«A high - resolution record of Greenland mass balance» «Antarctica, Greenland and Gulf of Alaska land - ice evolution from an iterated GRACE global mascon solution» «Greenland and Antarctica ice sheet mass changes and effects on global sea level»

Greenland Ice Sheet: There has been strong disagreement among some researchers if the Greenland Ice Sheet is losing mass due to carbon dioxide - caused global warming or due to other means.

«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.

Both the observations of mass balance and the estimates based on temperature changes (Table 11.4) indicate a reduction of mass of glaciers and ice caps in the recent past, giving a contribution to global - average sea level of 0.2 to 0.4 mm / yr over the last hundred years.

However, despite this, the team reckon to have perhaps isolated a «global warming» signal in the accelerated run off of the Greenland Ice Mass — but only just, because the runoff at the edges is balanced by increasing central mass — again, they focus upon recent trends — a net loss of about 22 cubic kilometres in total ice mass per year which they regard as statistically not significant — to find the «signal», and a contradiction to their ealier context of air temperature cyclIce Mass — but only just, because the runoff at the edges is balanced by increasing central mass — again, they focus upon recent trends — a net loss of about 22 cubic kilometres in total ice mass per year which they regard as statistically not significant — to find the «signal», and a contradiction to their ealier context of air temperature cyclice mass per year which they regard as statistically not significant — to find the «signal», and a contradiction to their ealier context of air temperature cycles.

Need to take a global perspective, on both sources and destination for the mass exchange of waster into ice and between land and ocean that is likely to occur in the 21st Century.

Perhaps with all that is known now, someone will propose a well - defined multivariate test entailing all relevant global data (including Antarctic ice extent and total Antarctic ice mass, mean and extremal rainfall everywhere, mean and extremal cyclonic storms everywhere.)

Ancillary to Bob Loblaw's fine comment at 232, previous research has shown that ice sheet mass contributions from land - based ice sheets have exceeded thermal expansion as the biggest contributor to global sea level rise.

Interestingly, previous research has shown that ice sheet mass contributions from land - based ice sheets have exceeded thermal expansion as the biggest contributor to global sea level rise.