Sea-level tracking satellite launched
Source: Copyright 2008, Agence France Presse
Date: June 20, 2008
A French-US satellite, which will provide the most accurate monitoring ever of rising sea levels and track the effects of climate change, was launched into orbit Friday from California.
A Delta 2 rocket carrying the Jason 2 satellite took off from Vandenberg Air Force base at 0746 GMT.
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Improved technology will allow Jason 2 to achieve a sea-level measurement accuracy of within 2.5 centimeters (one inch), compared with 3.3 centimeters (1.3 inches) for its predecessor Jason 1, NASA said.
Data from previous missions showed that sea levels have risen on average by 0.3 centimeters per year since 1993, or twice as much as they did in the whole of the 20th century, according to marine measurements.
But 15 years of data is not enough to draw accurate long-term conclusions, say scientists.
The latest mission will help create the first multi-decade global record of the role of the ocean in climate change, according to scientists at NASA's Jet Propulsion Laboratory in Pasadena, California.
It will also provide more accurate forecasts of seasonal weather patterns, and near real-time data on ocean conditions...cont'd
http://www.oceanconserve.org/shared/reader/welcome.aspx?linkid=101713