EGMlab, a scientific software for determining the gravity and gradient components from global geopotential models
2008 (English)In: Earth Science Informatics, ISSN 1865-0473, Vol. 1, no 2, 93-103 p.Article in journal (Refereed) Published
Nowadays, Global Geopotential Models (GGMs) are used as a routine stage in the procedures to compute a gravimetric geoid. The GGMs based geoidal height also can be used for GPS/levelling and navigation purposes in developing countries which do not have accurate gravimetric geoid models. Also, the GGM based gravity anomaly including the digital elevation model can be used in evaluation and outlier detections schemes of the ground gravity anomaly data. Further, the deflection of vertical and gravity gradients components from the GGMs can be used for different geodetic and geophysical interpretation purposes. However, still a complete and user-friendly software package is not available for universities and geosciences communities. In this article, first we review the procedure for determination of the basic gravity field and gradient components from the GGMs, then general MATLAB based software is presented and applied as a sample case study for determination of gravity components based on the most recent EIGEN-GL04C GRACE model in Sweden.
Place, publisher, year, edition, pages
2008. Vol. 1, no 2, 93-103 p.
Deflection of vertical components, GPS, Geoid, Geoidal height, Global geopotential model, Gravity anomaly, Gravity gradients, Levelling, Sweden
Other Earth and Related Environmental Sciences
IdentifiersURN: urn:nbn:se:kth:diva-10774DOI: 10.1007/s12145-008-0013-4ISI: 000207785400004OAI: oai:DiVA.org:kth-10774DiVA: diva2:227933
QC 201111082009-07-212009-07-212011-11-08Bibliographically approved