There are 177 global geopotential models (GGM) that have been published in the International Centre for Global Earth Model (ICGEM). All geopotential models can be evaluated to determine the best-fit geoid model for each place. Each geopotential model in ICGEM has their accuracy and resolutions based on the gravity field in that place. In this study, a statistical analysis has been made between the differences of geoid heights derived from the geopotential models in ICGEM and GPS/ Levelling data and the statistical analysis of gravity anomaly derived between geopotential models and terrestrial gravity data. There were six global geopotential models involved with 3 satellite-only models and 3 combined models. The result of statistical analysis for those geopotential models shows that the satellite-only model, GOCO-06S can determine the accurate information of the geoid heights derived from the geopotential models and GPS/Levelling data. The results also show that the gravity anomaly derived from SGG-UGM-2 with the maximum degree and order 2190 of spherical harmonic coefficients is the most suitable geopotential model that can be used as a reference in Peninsular Malaysia for further determination.
|Title of host publication
|12th Control and System Graduate Research Colloquium
|Published - 2021
|12th IEEE Control & System Graduate Research Colloquium (ICSGRC 2021) - Shah Alam, Malaysia
Duration: 7 Aug 2021 → 7 Aug 2021
|12th IEEE Control & System Graduate Research Colloquium (ICSGRC 2021)
|07/08/2021 → 07/08/2021