On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling
The primary drawback of forward gravity field modelling is that the Earth's density distribution must be known. Nowadays, increasingly more information on the Earth?s mass distribution is available, such as high-resolution digital elevation models, models of the crustal mass distribution as wel...
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| Other Authors: | |
| Format: | Conference Paper |
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Ziti Editions
2003
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/12155 |
| _version_ | 1848747999499386880 |
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| author | Kuhn, Michael Featherstone, Will |
| author2 | I N Tziavos |
| author_facet | I N Tziavos Kuhn, Michael Featherstone, Will |
| author_sort | Kuhn, Michael |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The primary drawback of forward gravity field modelling is that the Earth's density distribution must be known. Nowadays, increasingly more information on the Earth?s mass distribution is available, such as high-resolution digital elevation models, models of the crustal mass distribution as well as of deeper masses. This paper studies the spatial resolution of crustal mass distributions required in forward gravity field modelling using spherical harmonic expansion of global data and power spectral density functions of local data. The spectral sensitivity of different gravity field parameter is examined by means of degree variances and analytical degree variances. Numerical results for the geoid height and gravity disturbance are given globally and in a test area over part of Australia. |
| first_indexed | 2025-11-14T06:58:04Z |
| format | Conference Paper |
| id | curtin-20.500.11937-12155 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:58:04Z |
| publishDate | 2003 |
| publisher | Ziti Editions |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-121552017-01-30T11:29:04Z On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling Kuhn, Michael Featherstone, Will I N Tziavos crustal mass distribution spatial resolution Forward gravity field modelling The primary drawback of forward gravity field modelling is that the Earth's density distribution must be known. Nowadays, increasingly more information on the Earth?s mass distribution is available, such as high-resolution digital elevation models, models of the crustal mass distribution as well as of deeper masses. This paper studies the spatial resolution of crustal mass distributions required in forward gravity field modelling using spherical harmonic expansion of global data and power spectral density functions of local data. The spectral sensitivity of different gravity field parameter is examined by means of degree variances and analytical degree variances. Numerical results for the geoid height and gravity disturbance are given globally and in a test area over part of Australia. 2003 Conference Paper http://hdl.handle.net/20.500.11937/12155 Ziti Editions restricted |
| spellingShingle | crustal mass distribution spatial resolution Forward gravity field modelling Kuhn, Michael Featherstone, Will On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling |
| title | On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling |
| title_full | On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling |
| title_fullStr | On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling |
| title_full_unstemmed | On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling |
| title_short | On the Optimal Spatial Resolution of Crustal Mass Distributions for Forward Gravity Field Modelling |
| title_sort | on the optimal spatial resolution of crustal mass distributions for forward gravity field modelling |
| topic | crustal mass distribution spatial resolution Forward gravity field modelling |
| url | http://hdl.handle.net/20.500.11937/12155 |