In other words, about 61 percent of all fresh water on Earth is held in the ice of Antarctica, an amount equivalent to 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass beauty ice, but in West Antarctica the bed can extend to more than 2,500 m below sea level. The land in this area would be lower if the ice sheet were not there.
The formation of ice in Antarctica began with middle Eocene ice raft there are about 45.5 million years and indoor climbing event widely during the Eocene-Oligocene extinction there are about 34 million years beauty ice.
CO2 levels of 760 ppm were then [4] and was reduced to previous levels in the thousands of ppm beauty ice.
The reduction of carbon dioxide to 600 ppm point of inflection, was the main forcing agent Antarctic glaciation beauty ice. Glaciation was favored by an interval in Earth's orbit for cool summers, but the position changes cycle oxygen isotope ratios was too large to be explained by the growth of the ice sheet of Antarctica which indicates a single age ice the size of a certain openness.
Drake Passage may have played a role, as well as change models suggest a decrease in CO2 levels have been higher beauty ice.
Ice enters the sheet by precipitation as snow beauty ice. This snow is compacted to form glacial ice that moves by gravity to the coast. Much is carried ashore by the current fast-moving ice.
The ice and then into the ocean, often forming huge floating icebergs. These shelves can melt or calve off to give icebergs that eventually melt beauty ice.
If the transfer of ice from land to sea is offset by snow again in the field, there will be no net contribution to global level of the sea. A 2002 analysis of satellite data from NASA from 1979-1999 showed that if the whole country is falling ice areas of Antarctica, where sea ice has increased over regions of lower sea ice about 2 beauty ice :
1. The general trend shows that warming in the southern hemisphere have more moisture in Antarctica, which the indoor ice sheets grow, while childbirth events along the coast will increase, causing these areas to shrink.
A 2006 article in the satellite data beauty ice, measures changes in the severity of the ice mass, beauty ice suggests that the total amount of ice in Antarctica started declining in recent years.
[10] Another recent study compared the ice leaving the ice, the speed measuring ice thickness along the coast, the amount of snow accumulation on the continent. This found that the ice of East Antarctica was in balance beauty ice, but the layer of West Antarctic ice mass loss. This is mainly due to the flow acceleration glacier ice Pine Island. These results agree closely with changes in the gravity.
The estimate published in November 2012 and based on GRACE data, as well as glacial isostatic adjustment model that best indicates average weight loss was 69 ± 18 Gt / year from 2002-2010beauty ice .
The ice sheet of West Antarctica was more or less in balance, while the ice mass of Antarctica won beauty ice. The mass loss was mainly concentrated in the Amundsen Sea coast.
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