Terrestrial Mean Free-Air Gravity Anomaly and Geoid Undulations Data Base was compiled and developed by the Ohio State University. This data base was received in March 1993. Principal gravity parameters include mean elevation, mean free- air anomaly and source id. The data are global in coverage where data are available. A program that can be used to select data from this file as well as the OSU91A potential Coefficient model that is complete to degree 360 are also included.
Additional information is available .