Results 11 to 20 of about 41,704 (260)
Influence of Sea Level Anomaly on Underwater Gravity Gradient Measurements [PDF]
Sensors, 2022 Considering the theoretical research needs of gravity gradient detection and navigation, this study uses the right rectangular prism method to calculate the disturbing gravity gradient from sea level anomalies in the range of 5° × 5° in the Kuroshio ...
Pengfei Xian +3 more
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Influence of Differences in the Density of Seawater on the Measurement of the Underwater Gravity Gradient [PDF]
Sensors, 2023 In preparing gravity gradient reference maps for navigation purposes, researchers have tended to use a constant value for the density of seawater. However, the actual seawater density at a particular location may vary due to the effects of longitude ...
Pengfei Xian +4 more
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An Airborne Gravity Gradient Compensation Method Based on Convolutional and Long Short-Term Memory Neural Networks [PDF]
SensorsAs gravity exploration technology advances, gravity gradient measurement is becoming an increasingly important method for gravity detection. Airborne gravity gradient measurement is widely used in fields such as resource exploration, mineral detection ...
Shuai Zhou +3 more
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3D density imaging using gravity and gravity gradient in the wavenumber domain and its application in the Decorah [PDF]
Scientific ReportsDensity imaging is a method that uses the inversion of the gravity and gravity gradient spectra in the wavenumber domain to create accurate 3D reconstructions of subsurface density distributions.
Huiyou He +4 more
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Satellite gravity gradient grids for geophysics. [PDF]
Sci Rep, 2016 AbstractThe Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite aimed at determining the Earth’s mean gravity field. GOCE delivered gravity gradients containing directional information, which are complicated to use because of their error characteristics and because they are given in a rotating instrument frame indirectly related ...
Bouman J +7 more
europepmc +6 more sources
Performance Evaluation and Requirements Assessment for Gravity Gradient Referenced Navigation [PDF]
Sensors, 2015 In this study, simulation tests for gravity gradient referenced navigation (GGRN) are conducted to verify the effects of various factors such as database (DB) and sensor errors, flight altitude, DB resolution, initial errors, and measurement update rates
Jisun Lee, Jay Hyoun Kwon, Myeongjong Yu
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Identification of the Semangko Fault in Sumatra, Indonesia, based on gradient gravity data analysis [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2022 The Semangko Fault (SF) is a major active fault that extends across from Aceh (in northern part) to Lampung Province (in southern part) of Sumatra Island, contributing to much deformation and high seismicity along the fault. The fault affects a pattern
Muh Sarkowi +3 more
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Remote Sensing, 2022 Accurate and highly precise gravity gradient data are an important component of, for example, gravity field modeling, seabed topography inversion, and resource exploration. However, high-precision gravity gradient data are difficult to obtain. To address
Bei Liu +6 more
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Analysis of limitations on recovery of gravity field based on satellite gravity gradient data
Geodesy and Geodynamics, 2021 Although satellite gravity gradient data plays a great role in determining short-wavelength part of static gravity field model, accuracy of the long-wavelength part of gravity field model recovered by them are poor, which leads to only a few applications
Xiaoyun Wan +4 more
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Gravity gradient noise from asteroids [PDF]
Physical Review D, 2021 The gravitational coupling of nearby massive bodies to test masses in a gravitational wave (GW) detector cannot be shielded, and gives rise to 'gravity gradient noise' (GGN) in the detector. In this paper we show that for any GW detector using local test masses in the Inner Solar System, the GGN from the motion of the field of $\sim 10^5$ Inner Solar ...
Michael A. Fedderke +2 more
openaire +2 more sources