Definitions for "Gravity anomaly"
The difference between the observed value of gravity at a point and the theoretically calculated value at this point.
The value of gravity left after subtracting from a gravity measurement the reference value based on latitude, and possibly the free-air and Bouguer corrections.
a case where the observed value of gravity differs from the theoretical value for the given latitude and altitude
A geographic area where the gravitational attraction is significantly higher or significantly lower than normal.
An area where gravitational attraction is greater or less than its expected value.