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Directory Identifier: GRAVCD-wisc3 Directory Title: Wisconsin Gravity Data for the Wisconsin Rapids Area Principal Investigator: Professor C. Patrick Ervin Contributing Organization: Northern Illinois University
Summary: The gravity station data (7102 records) were compiled by Professor Ervin. This data base was received in April 1993. 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 area of central and northwestern Wisconsin north of 44 degrees north latitude. CAVEAT: Some of the data in this file may be duplicated in WISC4B.
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