The Determination and Application of Vector Gravity Anomalies
Conventional gravity measurements are only of the maximum magnitude of the gravity acceleration vector. This is because the gravimeter is aligned with the gravity vector and not in a self consistent reference frame. However, when a high-resolution geoid model is available, vector gravity data can be...
| Main Authors: | , , |
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| Format: | Journal Article |
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CSIRO Publishing
2000
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| Online Access: | http://www.publish.csiro.au/nid/225/issue/4489.htm http://hdl.handle.net/20.500.11937/39862 |
| _version_ | 1848755709894721536 |
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| author | Featherstone, Will Dentith, M. Kirby, Jon |
| author_facet | Featherstone, Will Dentith, M. Kirby, Jon |
| author_sort | Featherstone, Will |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Conventional gravity measurements are only of the maximum magnitude of the gravity acceleration vector. This is because the gravimeter is aligned with the gravity vector and not in a self consistent reference frame. However, when a high-resolution geoid model is available, vector gravity data can be computed. The geoid model is used to compute the deflections of the gravity vector from the ellipsoidal normal, thus providing direction to the measured magnitude of gravity acceleration. This allows the components of the gravity vector to be computed from the gravity measurements. Since the geoid is mostly generated by deeper Earth structure, the components of the vector gravity anomaly enhance the information on deeper mass variations above that contained in the conventional gravity anomaly. This approach has been applied to the Australian gravity database and shows a number of linear features not clearly evident in conventional Bouguer gravity anomaly maps. |
| first_indexed | 2025-11-14T09:00:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-39862 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:00:37Z |
| publishDate | 2000 |
| publisher | CSIRO Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-398622017-01-30T14:37:49Z The Determination and Application of Vector Gravity Anomalies Featherstone, Will Dentith, M. Kirby, Jon regional interpretation Geoid vector gravity anomalies Conventional gravity measurements are only of the maximum magnitude of the gravity acceleration vector. This is because the gravimeter is aligned with the gravity vector and not in a self consistent reference frame. However, when a high-resolution geoid model is available, vector gravity data can be computed. The geoid model is used to compute the deflections of the gravity vector from the ellipsoidal normal, thus providing direction to the measured magnitude of gravity acceleration. This allows the components of the gravity vector to be computed from the gravity measurements. Since the geoid is mostly generated by deeper Earth structure, the components of the vector gravity anomaly enhance the information on deeper mass variations above that contained in the conventional gravity anomaly. This approach has been applied to the Australian gravity database and shows a number of linear features not clearly evident in conventional Bouguer gravity anomaly maps. 2000 Journal Article http://hdl.handle.net/20.500.11937/39862 http://www.publish.csiro.au/nid/225/issue/4489.htm CSIRO Publishing restricted |
| spellingShingle | regional interpretation Geoid vector gravity anomalies Featherstone, Will Dentith, M. Kirby, Jon The Determination and Application of Vector Gravity Anomalies |
| title | The Determination and Application of Vector Gravity Anomalies |
| title_full | The Determination and Application of Vector Gravity Anomalies |
| title_fullStr | The Determination and Application of Vector Gravity Anomalies |
| title_full_unstemmed | The Determination and Application of Vector Gravity Anomalies |
| title_short | The Determination and Application of Vector Gravity Anomalies |
| title_sort | determination and application of vector gravity anomalies |
| topic | regional interpretation Geoid vector gravity anomalies |
| url | http://www.publish.csiro.au/nid/225/issue/4489.htm http://hdl.handle.net/20.500.11937/39862 |