A software package for computing a regional gravimetric geoid model by the KTH method
 Ramazan Alpay Abbak,
 Aydin Ustun
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Nowadays, the geodetic community has aimed to determine 1cm accuracy gravimetric geoid model, which satisfies the demands of most engineering applications. However, the gravimetric geoid determination is a difficult mission which needs an exclusive attention to obtain reliable results for this purpose. Today, LeastSquares Modification of Stokes (LSMS) formula which is socalled the KTH method (Swedish Royal Institute of Technology) has been performed in the regional geoid studies. Based upon the earlier investigations, the KTH method provides more reasonable results than the Remove Compute Restore technique, especially in roughly terrain with sparse terrestrial gravity data. Nevertheless, a compact and practical software package is now not available for users and researchers in geosciences. Thus, in this paper, a scientific software called “LSMSSOFT” is developed and presented by adding a new algorithm which speeds up the evaluation of Stokes’ integral. Afterwards, the LSMSSOFT is applied to a case study for the construction of a geoid model over the Auvergne test area in France. Consequently, the algorithm treated in the software and its results imply that the LSMSSOFT is an alternative software package for modelling the gravimetric geoid by the KTH method.
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 Title
 A software package for computing a regional gravimetric geoid model by the KTH method
 Journal

Earth Science Informatics
Volume 8, Issue 1 , pp 255265
 Cover Date
 20150301
 DOI
 10.1007/s1214501401493
 Print ISSN
 18650473
 Online ISSN
 18650481
 Publisher
 Springer Berlin Heidelberg
 Additional Links
 Topics
 Keywords

 Evaluation of Stokes’ integral
 Gravimetric geoid
 Modification of Stokes’ formula
 Software package
 Terrestrial gravity data
 Authors

 Ramazan Alpay Abbak ^{(1)}
 Aydin Ustun ^{(1)}
 Author Affiliations

 1. Department of Geomatics Engineering, Selcuk University, Konya, Turkey