On Evaluation of the Mean Gravity Gradient Within the Topography

Robert Tenzer, A. Ellmann

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

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 languageEnglish
Title of host publicationObserving our Changing Earth - Proceedings of the 2007 IAG General Assembly
Pages253-261
Number of pages9
Volume133
DOIs
Publication statusPublished - 1 Dec 2009
Externally publishedYes
Event24th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2007 - Perugia, Italy
Duration: 2 Jul 200713 Jul 2007

Conference

Conference24th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2007
CountryItaly
CityPerugia
Period2/07/0713/07/07

Keywords

  • Density
  • Gravity
  • Mean gravity gradient
  • Topography

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geophysics

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