Comparison of gravity anomalies from terrestrial gravity and recent geopotential models over West-Malaysia

Author

Sulaiman, Saiful Aman Hj ; Talib, Kamaluddin Hj ; Wazir, Mat Akhir Md ; Yusof, Othman Mohd

Author_Institution

Dept. Surveying Sci. & Geomatics, Univ. Teknol. MARA, Shah Alam, Malaysia

fYear

2011

fDate

27-28 June 2011

Firstpage

183

Lastpage

187

Abstract

Recently, International Center for Global Earth Models (ICGEM) published more than 50 Global Geopotential Models (GGMs). These GGMs plays an important role in a determination of a precise geoid model. Nowadays, some of the models offer high accuracy and better resolution of the gravity field. In this study, several recent GGMs derived from satellite-only (eg. EIGEN) and combined (eg. EGM2008) will be used. Gravity anomalies derived from selected GGMs are analyzed and compared with gravity anomalies derived from terrestrial gravity observation over West Malaysia (WM). The comparison and the results of selected GGMs is shown with the residual statistic. From the results, gravity anomalies derived from combined solution Earth Gravity Model (EGM2008) with the spherical harmonic coefficients up to 2190 is the most suitable model can be use as a reference over West Malaysia.

Keywords

Earth; gravimeters; gravity; GGM; West Malaysia; earth gravity model; geopotential model; residual statistic; terrestrial gravity; Analytical models; Computational modeling; Data models; Earth; Gravity; Harmonic analysis; Mathematical model; Global Geopotential Model (GGM); Gravity sitterAnomalie; Terrestrial Gravity;

fLanguage

English

Publisher

ieee

Conference_Titel

System Engineering and Technology (ICSET), 2011 IEEE International Conference on

Conference_Location

Shah Alam

Print_ISBN

978-1-4577-1256-2

Type

conf

DOI

10.1109/ICSEngT.2011.5993446

Filename

5993446