Results 21 to 30 of about 48,344 (297)
Sensors, 2023 It is acknowledged that a classical definition of the geoid-to-quasigeoid separation as a function of the simple planar Bouguer gravity anomaly is compatible with Helmert’s definition of orthometric heights.
Robert Tenzer, Albertini Nsiah Ababio
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Research and Construction of a Global Hexagonal Marine Gravity Gradient Reference Map for Navigation
Geofluids, 2023 A high-precision marine gravity gradient reference map is key to enabling underwater gravity gradient matching navigation. At present, the construction of the reference maps is based on quadrilateral geographic grids. However, quadrilateral grids lead to
Huang Yan +7 more
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地震科学进展, 2023 The integrated and array observation of the high-precision absolute gravity and gravity gradient can effectively improve the identification accuracy of gravity field sources at different depths.
Qiong Wu, Jiansheng Xu
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Remote Sensing, 2021 Airborne (or satellite) gravity measurement is a commonly used remote sensing method to obtain the underground density distribution. Airborne gravity gradiometry data have a higher horizontal resolution to shallower causative sources than airborne ...
Guoqing Ma +5 more
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An iterative Wiener filtering method based on the gravity gradient invariants
Geodesy and Geodynamics, 2015 How to deal with colored noises of GOCE (Gravity field and steady – state Ocean Circulation Explorer) satellite has been the key to data processing. This paper focused on colored noises of GOCE gradient data and the frequency spectrum analysis. According
Rui Zhou, Xiaoping Wu
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Ocean dynamic equations with the real gravity
Scientific Reports, 2021 Two different treatments in ocean dynamics are found between the gravity and pressure gradient force. Vertical component is 5–6 orders of magnitude larger than horizontal components for the pressure gradient force in large-scale motion, and for the ...
Peter C. Chu
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Advances in Materials Science and Engineering, 2022 Gravity is the primary load source in geotechnical engineering, and its effect becomes extremely important in these cases such as lunar research station construction and in situ resource utilization. However, at the current stage, the study on the effect
Ruilin Li +4 more
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Seismic noise and gravity-gradient noise
, 2019 Gravity gradient noise is generated by mass density changes through fluctuating gravity fields. Ambient seismic noise generated by microseismism, wind or of antropogenic origin is a possible source of such fluctuations. This work gives an overview of the
Grote, Hartmut +3 more
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An Aided Navigation Method Based on Strapdown Gravity Gradiometer
Sensors, 2021 The gravity gradient is the second derivative of gravity potential. A gravity gradiometer can measure the small change of gravity at two points, which contains more abundant navigation and positioning information than gravity.
Duanyang Gao +4 more
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An Expression for Gravity Generated by an Anomalous Geological Body and Its Application in Bathymetry Inversion [PDF]
Journal of Geodesy and Geoinformation Science, 2021 The gravity anomaly and vertical gravity gradient due to anomalous geological bodies are mainly computed by numerical methods, so it is difficult and time-consuming to use the gravity-geological method to invert seafloor topography.
Huan XU,Jinhai YU,Xiaoyun WAN,Lei LIANG
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