In geophysics, the free-air gravity anomaly, often simply called the free-air anomaly, is the measured gravity anomaly after a free-air correction is applied to account for the elevation at which a measurement is made. It does so by adjusting these measurements of gravity to what would have been measured at a reference level, which is commonly taken as mean sea level or the geoid.[1][2]
- ^ Fowler, C.M.R. (2005). The Solid Earth: An Introduction to Global Geophysics (2 ed.). Cambridge, UK: Cambridge University Press. pp. 205–206. ISBN 978-0-521-89307-7.
- ^ "Introduction to Potential Fields: Gravity" (PDF). U.S. Geological Survey Fact Sheets. FS–239–95. 1997. Retrieved 30 May 2019.