Characteristics of Marine Gravity Anomaly Reference Maps and Accuracy Analysis of Gravity Matching-Aided Navigation [PDF]
Sensors, 2017 The variation of a marine gravity anomaly reference map is one of the important factors that affect the location accuracy of INS/Gravity integrated navigation systems in underwater navigation. In this study, based on marine gravity anomaly reference maps,
Lin Wu
exaly +4 more sources
SDUST2023GRA_MSS: the new global marine gravity anomaly model determined from mean sea surface model [PDF]
Scientific DataThe global marine gravity anomalies are primarily recovered from geoid gradients in the along-track directions obtained through satellite altimetry. However, the accuracy of the gravity model is significantly constrained by the sparse geoid gradients in ...
Jinyun Guo +5 more
doaj +2 more sources
Refining satellite Altimetry-Derived gravity anomaly model with shipborne gravity using multilayer perceptron neural networks [PDF]
Scientific ReportsThis study refines the gravity anomaly model derived from altimetry data by employing a multilayer perceptron (MLP) neural network to integrate multi-source geophysical data (longitude, latitude, gravity anomaly, geoid height, bathymetry, and sediment ...
Chengjun Xiao +5 more
doaj +2 more sources
New Antarctic gravity anomaly grid for enhanced geodetic and geophysical studies in Antarctica [PDF]
Geophysical Research Letters, 2016 Mirko Scheinert +2 more
exaly +2 more sources
Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea [PDF]
E3S Web of Conferences, 2023 The GRACE large-scale sequent GRACE-FO gravity satellite mission is providing monthly gravity field solutions for almost 20 years enabling a unique opportunity to monitor large-scale mass variation processes.
Foldvary Lorant +4 more
doaj +1 more source
Remote Sensing, 2021 Shipborne gravity can be used to refine altimeter-derived gravity whose accuracy is low in shallow waters and areas with complex submarine topography. As altimeter-derived gravity only within a small radius around the shipborne data can be corrected by ...
Chengcheng Zhu +5 more
doaj +1 more source
Relationship between gravity change and Yangbi MS6.4 earthquake
Geodesy and Geodynamics, 2023 Based on the relative and absolute gravity measurements in the southern South-North Seismic Belt since 2015, we analyzed the dynamic change of the regional gravity field and its relationship with the Yangbi MS6.4 earthquake that occurred on May 21, 2021.
Xiong Yang +3 more
doaj +1 more source
Terrestrial, Atmospheric and Oceanic Sciences, 2016 We present a theory and numerical algorithm to directly determine the time-varying along-track geopotential difference and deflection of the vertical at the Gravity Recovery and Climate Experiment (GRACE) satellite altitude.
GRACE +4 more
doaj +1 more source
Remote Sensing, 2020 Currently, seafloor topography inversion based on satellite altimetry gravity data provides the principal means to predict the global seafloor topography. Researchers often use sea surface geoid height or gravity anomaly to predict sea depth in the space
Diao Fan +4 more
doaj +1 more source
Universal features of the holographic duality: conformal anomaly and brane gravity trapping from 5d AdS Black Hole [PDF]
, 2002 We calculate the holographic conformal anomaly and brane Newton potential when bulk is 5d AdS BH. It is shown that such anomaly is the same as in the case of pure AdS or (asymptotically) dS bulk spaces, i.e. it is (bulk) metric independent one.
Hull C. M. +3 more
core +2 more sources