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Lookup NU author(s): Dr Robert Tenzer,
Emeritus Professor Pavel Novak,
Professor Philip Moore
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Parameters of the gravity field harmonics outside the geoid are sought in solving the Stokes boundary-value problem while harmonics outside the Earth in solving the Molodensky boundary-value problem. The gravitational field generated by the atmosphere is subtracted from the Earth's gravity field in solving either the Stokes or Molodensky problem. The computation of the atmospheric effect on the ground gravity anomaly is of a particular interest in this study. In this paper in particular the effect of atmospheric masses is discussed for the Stokes problem. In this case the effect comprises two components, specifically the direct and secondary indirect atmospheric effects. The numerical investigation is conducted at the territory of Canada. Numerical results reveal that the complete effect of atmosphere on the ground gravity anomaly varies between 1.75 and 1.81 mGal. The error propagation indicates that precise determination of the atmospheric effect on the gravity anomaly depends mainly on the accuracy of the atmospheric mass density distribution model used for the computation. © StudiaGeo s.r.o. 2006.
Author(s): Tenzer R, Novak P, Moore P, Vajda P
Publication type: Article
Publication status: Published
Journal: Studia Geophysica et Geodaetica
ISSN (print): 0039-3169
ISSN (electronic): 1573-1626
Publisher: Springer Netherlands
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