Results 261 to 270 of about 269,909 (321)
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IEEE Transactions on Geoscience and Remote Sensing, 2022
The gravity gradient data have higher horizontal resolution and highlight the shallow sources relative to gravity data; therefore, the comprehensive measurement of gravity and its vertical gradient anomalies is commonly used to reveal the density ...
Nan Wang +4 more
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The gravity gradient data have higher horizontal resolution and highlight the shallow sources relative to gravity data; therefore, the comprehensive measurement of gravity and its vertical gradient anomalies is commonly used to reveal the density ...
Nan Wang +4 more
semanticscholar +1 more source
Journal of Geodesy, 2011
The vertical gradients of gravity anomaly and gravity disturbance can be related to horizontal first derivatives of deflection of the vertical or second derivatives of geoidal undulations. These are simplified relations of which different variations have found application in satellite altimetry with the implicit assumption that the neglected terms ...
J. Bouman
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The vertical gradients of gravity anomaly and gravity disturbance can be related to horizontal first derivatives of deflection of the vertical or second derivatives of geoidal undulations. These are simplified relations of which different variations have found application in satellite altimetry with the implicit assumption that the neglected terms ...
J. Bouman
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Geophysics, 2022
Among single-component inversions, vertical gravity gradient data have been proved to be sufficient to obtain reasonable density distribution. However, the increasing numbers of observations and model parameters inevitably produce a large-scale ...
Zhenlong Hou +4 more
semanticscholar +1 more source
Among single-component inversions, vertical gravity gradient data have been proved to be sufficient to obtain reasonable density distribution. However, the increasing numbers of observations and model parameters inevitably produce a large-scale ...
Zhenlong Hou +4 more
semanticscholar +1 more source
Marine Geodesy, 2021
New bathymetry models in the northwestern Pacific Ocean are presented at 1 arc-minute and 15 arc-second resolution. The latest version of the altimetric vertical gravity gradient (VGG) anomalies from Scripps Institute of Oceanography, ∼7 million single ...
Minzhang Hu +5 more
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New bathymetry models in the northwestern Pacific Ocean are presented at 1 arc-minute and 15 arc-second resolution. The latest version of the altimetric vertical gravity gradient (VGG) anomalies from Scripps Institute of Oceanography, ∼7 million single ...
Minzhang Hu +5 more
semanticscholar +1 more source
Measurement Science and Technology, 2019
A global gravity model (GGM) is a mathematical function describing the gravity field of the Earth. The assessment of GGMs involves identifying the best-fitting model to local gravity field for geodetic and geophysical applications.
Yunus Aytaç Akdoğan +2 more
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A global gravity model (GGM) is a mathematical function describing the gravity field of the Earth. The assessment of GGMs involves identifying the best-fitting model to local gravity field for geodetic and geophysical applications.
Yunus Aytaç Akdoğan +2 more
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Journal of Geophysical Research: Solid Earth, 2021
The segmentation of mid‐ocean ridges is a defining characteristic of seafloor spreading, yet some tectonic processes operating at segment boundaries remain poorly understood.
H. Harper, B. Tozer, D. Sandwell, R. Hey
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The segmentation of mid‐ocean ridges is a defining characteristic of seafloor spreading, yet some tectonic processes operating at segment boundaries remain poorly understood.
H. Harper, B. Tozer, D. Sandwell, R. Hey
semanticscholar +1 more source
EAGE 2020 Annual Conference & Exhibition Online, 2020
Summary Gravity data is a powerful tool for oil and gas exploration. Airborne gravity (AG) and airborne gravity gradiometer (AGG) systems each excel at measuring gravity, but at different ends of the typical exploration bandwidth. In order to realize the full benefit of each system type through their combination, a common method of noise estimation is ...
D. Burrows, C. Van Galder, T. Chen
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Summary Gravity data is a powerful tool for oil and gas exploration. Airborne gravity (AG) and airborne gravity gradiometer (AGG) systems each excel at measuring gravity, but at different ends of the typical exploration bandwidth. In order to realize the full benefit of each system type through their combination, a common method of noise estimation is ...
D. Burrows, C. Van Galder, T. Chen
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Mean Vertical Gradient of Gravity
2001The Stokes-Helmert scheme for precise geoid determination requires that Helmert’s gravity anomalies are first evaluated on the earth surface. Subsequently, these anomalies must be continued downward onto the geoid, where they make the boundary values for solving the geodetic boundary value problem. The anomalies are continued downward using the Poisson
P. Vanicek, J. Janák, J. Huang
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GEOPHYSICS, 1958
As the co‐author of the paper “Observation of the Vertical Gradient of Gravity in the Field” which appeared in Vol. 21 (1956) of Geophysics, I should like to add some comments.
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As the co‐author of the paper “Observation of the Vertical Gradient of Gravity in the Field” which appeared in Vol. 21 (1956) of Geophysics, I should like to add some comments.
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Journal of the Surveying and Mapping Division, 1964
The vertical gradients of gravity have great significance both in geodesy and in geophysics. In geodesy, in the free air reduction of gravity, the regional gradients should be used, rather than the customary normal gradients. The gravity anomalies, which include the free air reduction, are used in practice to determine geoid undulations, deflections of
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The vertical gradients of gravity have great significance both in geodesy and in geophysics. In geodesy, in the free air reduction of gravity, the regional gradients should be used, rather than the customary normal gradients. The gravity anomalies, which include the free air reduction, are used in practice to determine geoid undulations, deflections of
openaire +1 more source