Sentences with phrase «of glacial mass»

Greenland's conventional earthquakes aren't showing any trend despite the loss of glacial mass balance.

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.

It has been established experimentally that, at ca 4.0 ka BP, there occurred a global change in the structure of atmospheric circulation, which coincided in time with the discharge of glacial masses from Greenland to North Atlantic and a solar activity minimum.

Not exact matches

According to theory, planets in such distant orbits move so slowly that they should grow at a glacial rate and top out at masses well short of Jupiter's before the disk disperses.

The more intensive variations during glacial periods are due to the greater difference in temperature between the ice - covered polar regions and the Tropics, which produced a more dynamic exchange of warm and cold air masses.

By combining GOCE's high - resolution measurements with information from Grace, scientists can now look at changes in ice mass in small glacial systems — offering even greater insight into the dynamics of Antarctica's different basins.

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.

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.

As the glacial mass decreases over time, the amount of melted water that was produced can be calculated.

Evidence from glacial advance / retreat (e.g. the evidence from tropical Andean glaciers you cite above) is often difficult to interpret, because glacial mass balance represents in general a subtle competition between the influences of ablation (determined by changes in temperature thresholds reached) and accumulation (determined by changes in humidity and precipitation).

During the late Pleistocene glacial maxima, about two - thirds of the present Alaskan land mass was ice free (Hamilton and Goebel 1999:156).

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..

We do not blame glacial eustasy for those oscillations, rather ocean dynamic factors like drastic changes in evaporation / precipitation or redistributions of the water masses.

The current picture of Holocene climate variations is based not just on tree ring data, but on glacial mass balance and a wide variety of other proxy data.

Also, I believe we are seeing the beginning of a new glacial southern migration, the Arctic ice cap has thinned and the surface mass has been on the increase which to me is indicative of a glacial formation

Around the world, scientists calculate that the mass of glacial ice has been nearly halved in the last 50 years.

If the oceans had been losing energy over the same period the troposphere was seeing the «pause» or the sea level declining, or the net glacial mass of Greenland and Antarctica increasing rather than declining, then the «pause» would be confirmatory evidence that maybe the climate is not as sensitive to increasing GH gases.

We now have a faster warming rate and still 1/3 of the Ice Age glacial mass left to melt.

Gravity measurements of the ice - mass loss in Greenland and Antarctica are complicated by glacial isostatic adjustment.

An ice sheet is a mass of glacial land ice extending more than 50,000 square kilometers (20,000 square miles).

Additionally, unadjusted GRACE gravity data has suggested no lost ice mass and all estimates of ice gains or loss depend on which Glacial Isostatic Adjustments modelers choose to use.

During the onset of the MPT, glacial - interglacial changes in d13C values are associated with changes in nutrient content and carbonate saturation state, consistent with a change in water mass at our site from a nutrient - poor northern source during interglacial intervals to a nutrient - rich, corrosive southern source during glacial intervals.»

Atmosphere master Martin Parry, who had been co-seat of the working gathering on effects for IPCC Ar4, expressed that What started with a solitary shocking mistake over Himalayan glacial masses has turned into a clamour without substance.

Post-glacial rebound - The vertical movement of the land and sea floor following the reduction of the load of an ice mass, for example, since the Last Glacial Maximum (21 ka).

Reconstructed mass balance yielded accumulation and ablation each of ~ 3 km3 / yr, with glacial movement near the equilibrium line altitude dominated by basal sliding.Pollen and charcoal records from three lakes in northern Yellowstone provide information on the postglacial vegetation and fire history.

Figure 1: Comparison of macrocharcoal, BC, char, and soot mass accumulation rates (MARs) with local pollen and molecular compound data during the last glacial - interglacial transition at Linsley Pond.

Meanwhile, increasingly severe climate change - related events ranging from mass coral bleaching, to glacial and sea ice melt, to tree death, to ocean health decline, to the expanding ranges of tropical infectious diseases, to worsening extreme weather events have occurred the world over.

The magnitude and timing of effects on hydropower production depend on changes in glacial mass, as described above.

As the article points out, you can look at other metrics instead - OHC, sealevel, global glacial mass which have a much lower degree of internal variability.

But that mass loss (assuming the Grace calculations are correct, which I don't) is happening, it could be because of the random fits and starts of glacial acceleration and deceleration, which is temperature - independent (presumably).

For example, chapter ten, «Ice melts, sea level rises,» discusses the disappearance of tropical mountain glaciers, estimates of sea level rise in the present century, estimates of its costs — the EPA estimated in 1991 that a one - meter rise would cost the US alone between $ 270 billion and $ 475 billion — evidence of past oceanic high - water marks and glacial extents, the dynamics of ice sheet disintegration, the thermal expansion of seawater, icequakes and meltponds, ice mass loss and gain in Greenland and Antarctica, the ozone hole, and the existence and significance of «marine ice sheets.»

«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.

Although mass accumulation rates from these two sediment cores extend much farther back in time, the 232Th normalization of dust fluxes that are useful for our purposes here can only be calculated for the last three glacial / interglacial cycles (24, 31).

They are characterized by a rate limited source (of energy or mass), a storage mechanism, and a triggerable mechanism or switch which quickly empties the storage — common examples are tipping buckets, neon lamp oscillators, and glacial cycles.

I am concerned with how changes in climate affect glacial mass balance and the physical and chemical properties of snow.

Khan, S. A., L. Liu, J. Wahr, I. Howat, I. Joughin, T. van Dam, and K. Fleming, GPS measurements of crustal uplift near Jakobshavn Isbrae due to glacial ice mass loss, J. Geophys.

The sea level rise data combined with the Argo data combined with the glacial mass loss estimates provide a pretty strong triangulation of continued gain of energy in the climate system with the majority going to OHC gain since 2003.

Cyclonic activity is a big heat pump toward the poles where latent heat of melting ice shows as net glacial mass loss or loss of multi year ice.

Since 2003, the detailed gravity measurements from Gravity Recovery and Climate Experiment (GRACE) of the change in glacial land ice and water show an increase in mass of the ocean.

A fuller list of recent publications on glacial movements and mass balance is available at http://www.wgms.ch/literature.html

Further, there has been an almost worldwide reduction in glacial mass and extent in the 20th century; melting of the Greenland Ice Sheet has recently become apparent; snow cover has decreased in many Northern Hemisphere regions; sea ice thickness and extent have decreased in the Arctic in all seasons, most dramatically in spring and summer; the oceans are warming; and sea level is rising due to thermal expansion of the oceans and melting of land ice