Accession Number : AD0486417

Title :   A FORTRAN PROGRAM FOR THE UPWARD CONTINUATION OF GRAVITY ANOMALIES,

Corporate Author : OHIO STATE UNIV COLUMBUS DEPT OF GEODETIC SCIENCE AND SURVEYING

Personal Author(s) : Rapp, Richard H.

Report Date : FEB 1966

Pagination or Media Count : 72

Abstract : The equations of Moritz have been utilized in a computer program for the upward continuation of gravity anomalies. The solution for the anomaly at some elevation H is obtained through the evaluation of the Poisson integral using the known anomalies in the surrounding areas on the ground. The input to the program consists of blocks of 5 min. latitude x 5 min. longitude mean free-air anomalies, as well as 2.5 min. latitude x 2.5 min. longitude mean free-air anomalies for elevations below 12 km. The upward continued anomaly is thus computed for a sequence of points at, up to, 15 different input elevations. The lowest elevation that can be used is on the order of 5 km, while the highest elevation is limited by economical reasons to an elevation on the order of 50 km. In addition to the program itself numerous tests are described that pertain to square size and elevation limits to be used in the program. (Author)

Descriptors :   (*COMPUTER PROGRAMMING, GRAVITY), (*GRAVITY, ANOMALIES), INTEGRALS, SEQUENCES(MATHEMATICS), EQUATIONS.

Subject Categories : Geology, Geochemistry and Mineralogy
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE