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Article
Open AccessGlobal marine gravity anomalies from multi-satellite altimeter data
In this study, China’s first altimeter satellite Haiyang-2A (HY-2A) data combined observations from CryoSat-2, SARAL/AltiKa, and Jason-1&2 are used to calculate the global (60°S–60°N) marine deflections of the...
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Article
Recovering Bathymetry of the Gulf of Guinea Using Altimetry-Derived Gravity Field Products Combined via Convolutional Neural Network
Traditional methods of bathymetry inversion from altimetry data often use gravity anomalies and/or vertical gravity anomaly gradients. These two gravity products are usually computed from vertical deflections;...
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Article
Open AccessAssessment of HY-2A GM data by deriving the gravity field and bathymetry over the Gulf of Guinea
Nine cycles of Haiyang-2A (HY-2A) IGDR (Interim Geophysical Data Record) data are used to derive gravity products over the Gulf of Guinea (15° W–5° E, 4° S–4° N). Firstly, the sea surface heights (SSH) and ver...
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Article
Sensitivity analysis of gravity anomalies and vertical gravity gradient data for bathymetry inversion
Bathymetry is the measurement of the water depth similar to underwater topography. Gravity anomaly and vertical gravity gradient are important data used to inverse bathymetry. In this study, we investigate the...
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Chapter and Conference Paper
Navigation Using Invariants of Gravity Vectors and Gravity Gradients
The paper develops and analyzes the application of invariants of gravity vectors and gravity gradients in gravity matching navigation. Compared with the traditional method based on gravity gradient tensors, th...
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Article
The integral formulas of the associated Legendre functions
A new kind of integral formulas for \({\bar{P}_{n,m} (x)}\) is derived from the addition theorem about the Legendre F...