Evaluation of Gravity Anomaly and Geoid Height Derived from Various Global Geopotential Model

Nur Sofia Erina Ariff, Adolfientje Kasenda Olesen, Norehan Md Yaacob, Saiful Aman Hj Sulaiman

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

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.
Original languageEnglish
Title of host publication12th Control and System Graduate Research Colloquium
PublisherIEEE
Publication date2021
Pages34-39
ISBN (Electronic)978-1-6654-4011-0
DOIs
Publication statusPublished - 2021
Event12th IEEE Control & System Graduate Research Colloquium (ICSGRC 2021) - Shah Alam, Malaysia
Duration: 7 Aug 20217 Aug 2021

Conference

Conference12th IEEE Control & System Graduate Research Colloquium (ICSGRC 2021)
Country/TerritoryMalaysia
CityShah Alam
Period07/08/202107/08/2021

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