Mount Everest, the world's highest peak, stands 8,844.43m above sea level, some four meters shorter than previously thought, according to the latest survey by Chinese scientists.
The latest measurement was made by a team jointly organized by the Chinese Academy of Sciences (CAS) and the State Bureau of Surveying and Mapping (SBSM), Chen Bangzhu, director general of the bureau, told journalists yesterday.
New height
PHOTO: AP
The new height compares with China's previous measurement of Mount Qomolangma -- the traditional Tibetan name of the mountain -- of 8,848.13m which was carried out in 1975.
"This time the final measurement of Qomolangma is slightly lower than that of the 1975 measurement," Chen said.
"Actually the Qomolangma region is a place where the earth's crust is moving, but the new measurement that we have announced is based on the height of the peak's rock surface.
"Before we were unable to measure the height of the rock surface, this time we measured the thickness of the ice to get the actual height of the rock surface."
Chen said the accuracy of the measurement had a range of plus or minus 0.21m, while the thickness of the ice at the summit was measured at 3.5m.
China used the latest technology in measuring the mountain, including satellite equipment belonging to the Global Positioning System (GPS), he said.
The newest measurement also differs from a measurement taken six years ago by US scientists also using GPS satellite equipment that found the height of the mountain at 8,850m.
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