The 1x1 degree 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 (south from 1^oS to 71^oS, north from 72^oN to 0^o). The gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical formula. The data are global in coverage where data are available.

Principal Investigator: Dr. Richard H. Rapp

Contributing Organization:

             Ohio State University
             Department of Geodetic Science and Surveying
             404 Cockins Hall
             1958 Neil Avenue
             Columbus, OH 43210-1247

Users can order subsets of data by e-mail .