Directory Identifier: GRAVCD-andes97
Directory Title: Andes 1997 Gravity Data
Principal Investigator: Professor Dr. H. -J. Gotze
Contributing Organization: Freie Universitat Berlin
                           Institut fur Geologie Geophysik
                             und Geoinformatik
                           Haus N. Malteserstrasse 74-100
                           Berlin D-12249
                           Germany

Summary: The Central Andes gravity data (6,151 records) were
compiled by Professor Gotze and the MIGRA Group.  This data base
was received in April, 1997.  Principal gravity parameters include
Free-air Anomalies and Bouguer Anomalies (terrain and mass
corrected).  The gravity station data have been adjusted to the
International Gravity Standardization Net 1971 (IGSN 71).  The
gravity anomaly computation uses the Geodetic Reference System 1967
(GRS 67) theoretical gravity formula.  The data are randomly
distributed within the area bounded by 64 - 71 degrees West and 20
- 29 degrees South in the Central Andes of South America.