Accession Number : AD0704595

Title :   COMPUTATION OF MEAN ANOMALIES OF 1 DEGREE x 1 DEGREE BLOCKS,

Corporate Author : OHIO STATE UNIV COLUMBUS DEPT OF GEODETIC SCIENCE

Personal Author(s) : Uotila,Urho A.

Report Date : NOV 1967

Pagination or Media Count : 46

Abstract : In the investigation 15 different methods of the computation of mean anomalies of 1 degree x 1 degree blocks were examined and compared in a limited test area. The purpose of the study was to find an economical method of the computation of mean anomalies for the blocks in which some observed gravity values were given with corresponding location and elevation information. The mean elevation of the 1 degree x 1 degree block was also assumed to be known. As a result of the tests, five out of 15 techniques were found to be usable for the prediction and they were about equal in accuracy. The economy of the computations was also considered in the final recommendation about the best technique to be used. The effect of uncertainty in b-coefficient on predicted anomalies was examined. A simple formula for estimating the effect was given. (Author)

Descriptors :   (*TERRAIN, MAPPING), (*GRAVITY, CORRECTIONS), ANOMALIES, NUMERICAL ANALYSIS

Subject Categories : Geodesy

Distribution Statement : APPROVED FOR PUBLIC RELEASE