Volume and depth of the world's oceans calculated

Tuesday, May 18, 2010 - 22:31 in Earth & Climate

How high is the sky? Scientists have a pretty good handle on that one, what with their knowledge of the troposphere, stratosphere an the other "o-spheres." Now, thanks to new work, they are closing in on the other half of that age-old query: How deep is the ocean? The researchers report that the world's total ocean volume is less than the most recent estimates by a volume equivalent to about five times the Gulf of Mexico, or 500 times the Great Lakes. While that might seem a lot at first glance, it is only about 0.3% lower than the estimates of 30 years ago.

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