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At the beginning and ending points, and approximately every 50 to 75 km in between, a station was set up for the following work: a vertical 40-m hole was bored into the ice, the density and temperature of the ice at various depths in the borehole were measured, the ice sheet was sounded seismically, the accumulation rate was studied in hand ...
The ice sheet is around 2.2 km (1.4 mi) thick on average and is 4,897 m (16,066 ft) at its thickest point. [2] It is also home to the geographic South Pole, South Magnetic Pole and the Amundsen–Scott South Pole Station. The surface of the EAIS is the driest, windiest, and coldest place on Earth.
IceCube measured 10–100 GeV atmospheric muon neutrino disappearance in 2014, using three years of data taken May 2011 to April 2014, including DeepCore, [24] determining neutrino oscillation parameters ∆m 2 32 = 2.72 +0.19 −0.20 × 10 −3 eV 2 and sin 2 (θ 23) = 0.53 +0.09 −0.12 (normal mass hierarchy), comparable to other results ...
It is believed that the loss of the ice sheet would take between 2,000 and 13,000 years, although several centuries of high emissions may shorten this to 500 years. 3.3 m (10 ft 10 in) of sea level rise would occur if the ice sheet collapses but leaves ice caps on the mountains behind, and 4.3 m (14 ft 1 in) if those melt as well.
Upward looking sonar (ULS) devices can be deployed under polar ice over a period of months or even years, and can provide a complete profile of ice thickness for a single site. [19] Sonars are directly measuring sea ice draft, so accurate estimate of sea ice thickness requires knowledge about snow thickness, snow and sea-ice density.
Ultimately, scientists believe 10 probes would be ideal to gather data from a single ice shelf cavity, but "we have more development and testing to go" before devising a timeline for full-scale ...
Greenland ice sheet as seen from space. An ice sheet is a body of ice which covers a land area of continental size - meaning that it exceeds 50,000 km 2. [4] The currently existing two ice sheets in Greenland and Antarctica have a much greater area than this minimum definition, measuring at 1.7 million km 2 and 14 million km 2, respectively.
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