Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN

The Earth's potential information is important for exploration of the Earth's gravity field. The techniques of measuring the Earth's gravity using the terrestrial and ship borne technique are time consuming and have limitation on the vast area. With the space-based measuring technique...

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Main Authors: Tugi, A., Din, A. H. M., Omar, K. M., Mardi, A. S., Soma, Z. A. M., Omar, A. H., Yahaya, N. A. Z., Yazid, N.
Format: Conference or Workshop Item
Published: International Society for Photogrammetry and Remote Sensing 2016
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Online Access:http://eprints.utm.my/id/eprint/73046/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994045381&doi=10.5194%2fisprs-archives-XLII-4-W1-287-2016&partnerID=40&md5=3fca7b33c2ee1758425f73436b6a07f8
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spelling my.utm.730462017-11-27T02:00:04Z http://eprints.utm.my/id/eprint/73046/ Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN Tugi, A. Din, A. H. M. Omar, K. M. Mardi, A. S. Soma, Z. A. M. Omar, A. H. Yahaya, N. A. Z. Yazid, N. G70.212-70.215 Geographic information system The Earth's potential information is important for exploration of the Earth's gravity field. The techniques of measuring the Earth's gravity using the terrestrial and ship borne technique are time consuming and have limitation on the vast area. With the space-based measuring technique, these limitations can be overcome. The satellite gravity missions such as Challenging Mini-satellite Payload (CHAMP), Gravity Recovery and Climate Experiment (GRACE), and Gravity-Field and Steady-State Ocean Circulation Explorer Mission (GOCE) has introduced a better way in providing the information on the Earth's gravity field. From these satellite gravity missions, the Global Geopotential Models (GGMs) has been produced from the spherical harmonics coefficient data type. The information of the gravity anomaly can be used to predict the bathymetry because the gravity anomaly and bathymetry have relationships between each other. There are many GGMs that have been published and each of the models gives a different value of the Earth's gravity field information. Therefore, this study is conducted to assess the most reliable GGM for the Malaysian Seas. This study covered the area of the marine area on the South China Sea at Sabah extent. Seven GGMs have been selected from the three satellite gravity missions. The gravity anomalies derived from the GGMs are compared with the airborne gravity anomaly, in order to figure out the correlation (R2) and the root mean square error (RMSE) of the data. From these assessments, the most suitable GGMs for the study area is GOCE model, GO-CONS-GCF-2-TIMR4 with the R2 and RMSE value of 0.7899 and 9.886 mGal, respectively. This selected model will be used in the estimating the bathymetry for Malaysian Seas in future. International Society for Photogrammetry and Remote Sensing 2016 Conference or Workshop Item PeerReviewed Tugi, A. and Din, A. H. M. and Omar, K. M. and Mardi, A. S. and Soma, Z. A. M. and Omar, A. H. and Yahaya, N. A. Z. and Yazid, N. (2016) Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN. 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-s2.0-84994045381&doi=10.5194%2fisprs-archives-XLII-4-W1-287-2016&partnerID=40&md5=3fca7b33c2ee1758425f73436b6a07f8
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/
topic G70.212-70.215 Geographic information system
spellingShingle G70.212-70.215 Geographic information system
Tugi, A.
Din, A. H. M.
Omar, K. M.
Mardi, A. S.
Soma, Z. A. M.
Omar, A. H.
Yahaya, N. A. Z.
Yazid, N.
Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN
description The Earth's potential information is important for exploration of the Earth's gravity field. The techniques of measuring the Earth's gravity using the terrestrial and ship borne technique are time consuming and have limitation on the vast area. With the space-based measuring technique, these limitations can be overcome. The satellite gravity missions such as Challenging Mini-satellite Payload (CHAMP), Gravity Recovery and Climate Experiment (GRACE), and Gravity-Field and Steady-State Ocean Circulation Explorer Mission (GOCE) has introduced a better way in providing the information on the Earth's gravity field. From these satellite gravity missions, the Global Geopotential Models (GGMs) has been produced from the spherical harmonics coefficient data type. The information of the gravity anomaly can be used to predict the bathymetry because the gravity anomaly and bathymetry have relationships between each other. There are many GGMs that have been published and each of the models gives a different value of the Earth's gravity field information. Therefore, this study is conducted to assess the most reliable GGM for the Malaysian Seas. This study covered the area of the marine area on the South China Sea at Sabah extent. Seven GGMs have been selected from the three satellite gravity missions. The gravity anomalies derived from the GGMs are compared with the airborne gravity anomaly, in order to figure out the correlation (R2) and the root mean square error (RMSE) of the data. From these assessments, the most suitable GGMs for the study area is GOCE model, GO-CONS-GCF-2-TIMR4 with the R2 and RMSE value of 0.7899 and 9.886 mGal, respectively. This selected model will be used in the estimating the bathymetry for Malaysian Seas in future.
format Conference or Workshop Item
author Tugi, A.
Din, A. H. M.
Omar, K. M.
Mardi, A. S.
Soma, Z. A. M.
Omar, A. H.
Yahaya, N. A. Z.
Yazid, N.
author_facet Tugi, A.
Din, A. H. M.
Omar, K. M.
Mardi, A. S.
Soma, Z. A. M.
Omar, A. H.
Yahaya, N. A. Z.
Yazid, N.
author_sort Tugi, A.
title Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN
title_short Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN
title_full Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN
title_fullStr Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN
title_full_unstemmed Gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimatioN
title_sort gravity anomaly assessment using ggms and airborne gravity data towards bathymetry estimation
publisher International Society for Photogrammetry and Remote Sensing
publishDate 2016
url http://eprints.utm.my/id/eprint/73046/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994045381&doi=10.5194%2fisprs-archives-XLII-4-W1-287-2016&partnerID=40&md5=3fca7b33c2ee1758425f73436b6a07f8
_version_ 1643656560500539392
score 13.160551