Goce satellite maps the Earth’s gravity in unprecedented precision

A European spacecraft that skims the upper reaches of the atmosphere has mapped Earth’s gravity with unrivalled precision. The map shows how the pull of gravity varies minutely over the surface of the Earth, from deep ocean trenches to majestic mountain ranges.

The measurements have allowed scientists to create a computer model called a geoid that reveals what Earth would look like if its shape were altered to make gravity equal at every point on the surface.

Goce satellite maps the Earth’s gravity in unprecedented precision | Science | guardian.co.uk

Maybe this should be a factor for the World Records in track and field.