Abstract
To reduce the absolute gravity measurements onto the geoid, the vertical gravity gradient is usually applied. Alternatively, the reduction can be realized by applying the mean vertical gravity gradient. In this study, the mean gravity gradient along the plumbline within the topography is investigated. We demonstrate how the mean gravity gradient is related with the mass density distribution within the topography, the shape of the Earth and the vertical change of gravity gradient with the depth, whereas the effect of atmosphere is negligible. We also show how the errors due to uncertainties in topographical mass density distribution propagate to the errors in a prediction of the mean gravity gradient. The numerical analysis is conducted at the area of study in the Canadian Rocky Mountains.
Original language | English |
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Title of host publication | Observing our Changing Earth - Proceedings of the 2007 IAG General Assembly |
Pages | 253-261 |
Number of pages | 9 |
Volume | 133 |
DOIs | |
Publication status | Published - 1 Dec 2009 |
Externally published | Yes |
Event | 24th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2007 - Perugia, Italy Duration: 2 Jul 2007 → 13 Jul 2007 |
Conference
Conference | 24th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2007 |
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Country/Territory | Italy |
City | Perugia |
Period | 2/07/07 → 13/07/07 |
Keywords
- Density
- Gravity
- Mean gravity gradient
- Topography
ASJC Scopus subject areas
- Computers in Earth Sciences
- Geophysics