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Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia

A set of higher degree and order of spherical harmonic potential coefficients ( Cnm, Snm ) plays an important part in gravity field modelling , e.g. reference model for the gravimetric solution. The satellite and terrestrial data used in the development of the global geopotential model have improves...

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Main Authors: Wan Mohd. Akib, Wan Abdul Aziz, Fashir, Hassan, Zainon, Othman
Format: Conference or Workshop Item
Language:English
Published: 1998
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/11944/1/OthmanZainon_Evaluation_OfTheEgm96Model_.pdf
http://eprints.utm.my/id/eprint/11944/
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spelling my.utm.119442017-08-27T01:06:03Z http://eprints.utm.my/id/eprint/11944/ Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia Wan Mohd. Akib, Wan Abdul Aziz Fashir, Hassan Zainon, Othman TA Engineering (General). Civil engineering (General) A set of higher degree and order of spherical harmonic potential coefficients ( Cnm, Snm ) plays an important part in gravity field modelling , e.g. reference model for the gravimetric solution. The satellite and terrestrial data used in the development of the global geopotential model have improves with time. For example, the most recent EGM96 model incorporate new 30’ X 30’ surface gravity anomalies, normal equations from direct altimetry data (TOPEX/POSEIDON, GEOSAT & ERS-1). This paper presents the accuracy of the anomalous gravity field determined from the potential coefficients of the EGM96 model over the Malaysia region. Dividing the region into 0.5 x 0.5 block and testing the mean fit for each block, it shows how well the residual gravity anomalies is modelled by EGM96 model compared to geopotential model OSU91A. To assess the quality of the estimated geoid height from EGM96(NEGM) and OSU91A (NOSU) , comparison are made with the corresponding height derived from 136 GPS control poinst (NGPS/Lev). The overall results of absolute and relativen geoid height differences showed that the EGM96 is definitely the best high-order geopotential model to be used as reference gravity field modelling for the Peninsular Malaysia. 1998-10-10 Conference or Workshop Item NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/11944/1/OthmanZainon_Evaluation_OfTheEgm96Model_.pdf Wan Mohd. Akib, Wan Abdul Aziz and Fashir, Hassan and Zainon, Othman (1998) Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia. In: Seminar Geoinformasi 1998, 10-11 October 1998, Universiti Teknologi Malaysia, Kuala Lumpur. (Submitted)
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Wan Mohd. Akib, Wan Abdul Aziz
Fashir, Hassan
Zainon, Othman
Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia
description A set of higher degree and order of spherical harmonic potential coefficients ( Cnm, Snm ) plays an important part in gravity field modelling , e.g. reference model for the gravimetric solution. The satellite and terrestrial data used in the development of the global geopotential model have improves with time. For example, the most recent EGM96 model incorporate new 30’ X 30’ surface gravity anomalies, normal equations from direct altimetry data (TOPEX/POSEIDON, GEOSAT & ERS-1). This paper presents the accuracy of the anomalous gravity field determined from the potential coefficients of the EGM96 model over the Malaysia region. Dividing the region into 0.5 x 0.5 block and testing the mean fit for each block, it shows how well the residual gravity anomalies is modelled by EGM96 model compared to geopotential model OSU91A. To assess the quality of the estimated geoid height from EGM96(NEGM) and OSU91A (NOSU) , comparison are made with the corresponding height derived from 136 GPS control poinst (NGPS/Lev). The overall results of absolute and relativen geoid height differences showed that the EGM96 is definitely the best high-order geopotential model to be used as reference gravity field modelling for the Peninsular Malaysia.
format Conference or Workshop Item
author Wan Mohd. Akib, Wan Abdul Aziz
Fashir, Hassan
Zainon, Othman
author_facet Wan Mohd. Akib, Wan Abdul Aziz
Fashir, Hassan
Zainon, Othman
author_sort Wan Mohd. Akib, Wan Abdul Aziz
title Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia
title_short Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia
title_full Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia
title_fullStr Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia
title_full_unstemmed Evaluation of the EGM96 model of the geopotential in Peninsular Malaysia
title_sort evaluation of the egm96 model of the geopotential in peninsular malaysia
publishDate 1998
url http://eprints.utm.my/id/eprint/11944/1/OthmanZainon_Evaluation_OfTheEgm96Model_.pdf
http://eprints.utm.my/id/eprint/11944/
_version_ 1643645818705543168
score 13.211869

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