Sentences with phrase «ice level fluctuations»

Not exact matches

Uncertainties about Great Lakes water levels are high, though most models suggest that the decrease in ice cover will lead to slightly lower water levels, beyond natural fluctuations.

The notion of temperature fluctuation and associated manifestations such as sea level changes together with changes in sea ice and glaciers, needs to underpin any narrative about historic climate.

The supposed stable configuration of geography, with relatively predictable climate patterns, coastlines and icepacks in familiar locations, and clear demarcations of territorial control on land are increasingly dubious assumptions as weather patterns change, sea levels rise and ice packs disintegrate while technological innovations, communications and global markets cause rapid fluctuations in the price in food and other essentials across boundaries.

Most global warming predictions are based on fluctuations in CO2 levels and temperature that happened between a relatively recent series of ice ages, said DePaolo, who was not involved in the new study, which will appear in tomorrow's issue of the journal Science.

You are certainly right about the thickness of the Antarctic snow, and the point goes double for the ice sheet — that's why fluctuations in the AIS can cause tens of meters of sea level rise.

Fluctuations in the mass of the Greenland and Antarctic ice sheets are of considerable societal importance as they impact directly on global sea levels: since 1901, ice losses from Antarctica and Greenland, alongside the melting of small glaciers and ice caps and thermal expansion of the oceans, have caused global sea levels to rise at an average rate of 1.7 mm / yr.

The Antarctic Ice Sheet currently holds the equivalent of 60 meters of sea - level rise in its massive ice sheet, so even minor fluctuations in its mass are importaIce Sheet currently holds the equivalent of 60 meters of sea - level rise in its massive ice sheet, so even minor fluctuations in its mass are importaice sheet, so even minor fluctuations in its mass are important.

Significant short - term (decades to century - scale) temperature and sea levels fluctuations (several degrees and many meters) during the last ice age (about 110 — 15 thousand years ago) imply great instability of the Greenland and west Antarctic ice sheets.