Gravity Map of Earth

dr3vil writes "Interesting results have been published by the GRACE (Gravity Recovery and Climate Experiment) project, of the various gravity anomolies that exist at various places on Earth. The BBC report gives a good overview. Fascinating for me, a resident of California, to see us apparently sandwiched between a high and a low spot. Maybe that helps aids the tectonic flows around here?"

Comments

Practical uses

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Anyone installing a highly precise weight scale uses this data. Also note that the apparent gravity changes from a high level at the poles to a low level at the equator due to the surface rotational speed of the earth.

I'll leave it as an exercise to the reader to determine how much.