Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data
Global geopotential models (GGMs) are vital in computing global geoid undulations heights. Based on the ellipsoidal height by Global Navigation Satellite System (GNSS) observations, the accurate orthometric height can be calculated by adding precise and accurate geoid undulations model information....
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| Format: | Conference or Workshop Item |
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International Society for Photogrammetry and Remote Sensing
2016
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| author | Yazid, N. M. Din, A. H. M. Omar, K. M. Som, Z. A. M. Omar, A. H. Yahaya, N. A. Z. Tugi, A. |
| author_facet | Yazid, N. M. Din, A. H. M. Omar, K. M. Som, Z. A. M. Omar, A. H. Yahaya, N. A. Z. Tugi, A. |
| author_sort | Yazid, N. M. |
| collection | ePrints |
| description | Global geopotential models (GGMs) are vital in computing global geoid undulations heights. Based on the ellipsoidal height by Global Navigation Satellite System (GNSS) observations, the accurate orthometric height can be calculated by adding precise and accurate geoid undulations model information. However, GGMs also provide data from the satellite gravity missions such as GRACE, GOCE and CHAMP. Thus, this will assist to enhance the global geoid undulations data. A statistical assessment has been made between geoid undulations derived from 4 GGMs and the airborne gravity data provided by Department of Survey and Mapping Malaysia (DSMM). The goal of this study is the selection of the best possible GGM that best matches statistically with the geoid undulations of airborne gravity data under the Marine Geodetic Infrastructures in Malaysian Waters (MAGIC) Project over marine areas in Sabah. The correlation coefficients and the RMS value for the geoid undulations of GGM and airborne gravity data were computed. The correlation coefficients between EGM 2008 and airborne gravity data is 1 while RMS value is 0.1499.In this study, the RMS value of EGM 2008 is the lowest among the others. Regarding to the statistical analysis, it clearly represents that EGM 2008 is the best fit for marine geoid undulations throughout South China Sea. |
| first_indexed | 2024-03-05T20:05:07Z |
| format | Conference or Workshop Item |
| id | utm.eprints-73044 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:05:07Z |
| publishDate | 2016 |
| publisher | International Society for Photogrammetry and Remote Sensing |
| record_format | dspace |
| spelling | utm.eprints-730442017-11-27T09:02:13Z http://eprints.utm.my/73044/ Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data Yazid, N. M. Din, A. H. M. Omar, K. M. Som, Z. A. M. Omar, A. H. Yahaya, N. A. Z. Tugi, A. G70.212-70.215 Geographic information system Global geopotential models (GGMs) are vital in computing global geoid undulations heights. Based on the ellipsoidal height by Global Navigation Satellite System (GNSS) observations, the accurate orthometric height can be calculated by adding precise and accurate geoid undulations model information. However, GGMs also provide data from the satellite gravity missions such as GRACE, GOCE and CHAMP. Thus, this will assist to enhance the global geoid undulations data. A statistical assessment has been made between geoid undulations derived from 4 GGMs and the airborne gravity data provided by Department of Survey and Mapping Malaysia (DSMM). The goal of this study is the selection of the best possible GGM that best matches statistically with the geoid undulations of airborne gravity data under the Marine Geodetic Infrastructures in Malaysian Waters (MAGIC) Project over marine areas in Sabah. The correlation coefficients and the RMS value for the geoid undulations of GGM and airborne gravity data were computed. The correlation coefficients between EGM 2008 and airborne gravity data is 1 while RMS value is 0.1499.In this study, the RMS value of EGM 2008 is the lowest among the others. Regarding to the statistical analysis, it clearly represents that EGM 2008 is the best fit for marine geoid undulations throughout South China Sea. International Society for Photogrammetry and Remote Sensing 2016 Conference or Workshop Item PeerReviewed Yazid, N. M. and Din, A. H. M. and Omar, K. M. and Som, Z. A. M. and Omar, A. H. and Yahaya, N. A. Z. and Tugi, A. (2016) Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data. In: 2016 International Conference on Geomatic and Geospatial Technology, GGT 2016, 3 October 2016 through 5 October 2016, Kuala Lumpur; Malaysia. https://www.scopus.com/inward/record.uri?eid=2-s2.0-84993993446&doi=10.5194%2fisprs-archives-XLII-4-W1-253-2016&partnerID=40&md5=619d0f6f32c6d7e4dedc0abe6b36aec4 |
| spellingShingle | G70.212-70.215 Geographic information system Yazid, N. M. Din, A. H. M. Omar, K. M. Som, Z. A. M. Omar, A. H. Yahaya, N. A. Z. Tugi, A. Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data |
| title | Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data |
| title_full | Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data |
| title_fullStr | Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data |
| title_full_unstemmed | Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data |
| title_short | Marine geoid undulation assessment over south China sea using global geopotential models and airborne gravity data |
| title_sort | marine geoid undulation assessment over south china sea using global geopotential models and airborne gravity data |
| topic | G70.212-70.215 Geographic information system |
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