| Gravity Data for California and Southern Nevada |
| The gravity data (88,514 records) were compiled largely from a state-wide regional
gravity study program organized by the California Division of Mines and Geology in
cooperation with the U.S. Geological Survey in Menlo Park, California. The data base
was received in February 1983. Principal gravity parameters include Free-air Anomalies
and Simple Bouguer Anomalies (no terrain correction applied). The observed gravity
values are referenced 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 boundaries
of California with a few stations in Southern Nevada. |
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