abstract:In geodesy and geophysics, theoretical gravity is a means to compare the true gravity on the Earth's surface with a physically smoothed model. The most common model of a smoothed Earth is the Earth ellipsoid.
Curve fittingoftheoreticalgravityanomaliesandobservedgravity anomalies, shapeparametersconvergenceofthefault structures, iteration number indicate the reliabilityof the interpretation.
"When you have such a big mass in such a small space you have extremely high gravity, " said Charles Wang, a theoretical physicist at the University of Aberdeen, Scotland, who wasn't involved in the study.