Results 251 to 260 of about 109,361 (292)

Joint inversion of gravity and gravity gradient data: A systematic evaluation

Geophysics, 2021
ABSTRACT Gravity and gravity gradiometry measurements are commonly used to map density variations in the subsurface. Gravity measurements can characterize gravitational anomalies at long and short wavelengths effectively, but the cost of collecting a sufficiently spatially dense survey to characterize the short wavelengths can be ...
Joseph Capriotti, Yaoguo Li
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Workflow for a joint inversion of gravity and gravity gradients for environmental applications

Second International Meeting for Applied Geoscience & Energy, 2022
We present a workflow for a joint inversion of gravity and gravity gradients. Our goal is the multi-source modelling in different context with environmental applications such as caviy detection. The workflow is based on sequential joint inversion via cross-gradient constraint. We implemented the separate inversions through the focusing inversion, which
Bianco L., Tavakoli M., Vitale A., Fedi M.   +3 more
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Generalized compact gravity inversion

Geophysics, 1994
Abstract Extending the compact gravity inversion technique by incorporating a priori information about the maximum compactness of the anomalous sources along several axes provides versatility. Thus, the method may also incorporate information about limits in the axes lengths or greater concentration of mass along one or more ...
Valeria Cristina F. Barbosa, Joao B. C. Silva   +1 more
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Convergence of iterative gravity inversion

Geophysics, 1986
Abstract Oldenburg (1974) presented an iterative inversion procedure based on (a rearrangement of) Parker's (1973) formula for rapid calculation of the gravity anomaly caused by an uneven layer; the algorithm proved effective in practice (Sprenke and Kanasewich, 1982). Nevertheless, Oldenburg stated that straightforward application of
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On Gravity Inversion by No-Topography and Rigorous Isostatic Gravity Anomalies

Pure and Applied Geophysics, 2015
We discuss some theoretical aspects and practical consequences of using traditional versus “new”/rigorous formulations of the Bouguer and isostatic gravity anomalies/disturbances. In principle, the differences between these two concepts are in the definition of the so-called secondary indirect topographic effect (SITE) on the gravity data.
Lars E. Sjöberg, Mohammad Bagherbandi, Robert Tenzer   +2 more
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Inversion Reconstruction of Gravity Potential Based on Gravity Gradients

Mathematical Geosciences, 2008
A new method was developed for the inversion reconstruction of gravity potential. This method offers the possibility to determine the potential function and all of its important derivatives using the common inversion of gravity gradients and the first derivatives of potential. Gravity gradients can be originated from Torsion balance measurements, while
Dobróka, Mihály, Völgyesi, Lajos
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The inversion and interpretation of gravity anomalies

Geophysics, 1974
Abstract Rearrangement of Parker (1973 ...
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Techniques in Doppler gravity inversion

Journal of Geophysical Research, 1974
The types of Doppler gravity data available for local as opposed to planetwide geophysical modeling are reviewed. Those gravity fields that are determined dynamically in orbit determination programs yield a smoothed representation of the local gravity field that may be used for quantitative modeling.
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Lithological Constrained Gravity Inversion. A Bayesian Approach

81st EAGE Conference and Exhibition 2019, 2019
A new method for the gravity inversion is presented. It is based on a Bayesian approach and it allows to preserve sharp boundary between different lithologies.
P. Marchetti, D. Sampietro, M. Capponi, L. Rossi, M. Reguzzoni, F. Porzio, F. Sansò   +6 more
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3D STOCHASTIC GRAVITY INVERSION ON UNSTRUCTURED MESHES

Symposium on the Application of Geophysics to Engineering and Environmental Problems 2014, 2014
The stochastic gravity inversion on unstructured meshes is presented. The unstructured meshes are used because they provide the flexibility required to closely approximate complicated geological structures. Sharp topographic relief and geological bodies of complex shapes are usually more accurately described by unstructured meshes rather than with ...
Pejman Shamsipour, Ernst Schetselaar, Michel Chouteau, Denis Marcotte   +3 more
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