Results 11 to 20 of about 269,909 (321)

Global marine gravity gradient tensor inverted from altimetry-derived deflections of the vertical: CUGB2023GRAD [PDF]

open access: yesEarth System Science Data
Geodetic applications of altimetry have largely been inversions of gravity anomaly. Previous studies of Earth's gravity gradient tensor mostly presented only the vertical gravity gradient (VGG).
R. F. Annan, X. Wan, R. Hao, F. Wang
doaj   +2 more sources

Proof-of-principle demonstration of vertical gravity gradient measurement using a single proof mass double-loop atom interferometer [PDF]

open access: yesPhysical Review A, 2018
We demonstrate a proof-of-principle of direct Earth gravity gradient measurement with an atom interferometer-based gravity gradiomter using a single proof mass of cold 87 rubidium atoms.
Bidel, Yannick   +5 more
core   +4 more sources

Bathymetry predicted from vertical gravity gradient anomalies and ship soundings

open access: yesGeodesy and Geodynamics, 2014
In this paper, the admittance function between seafloor undulations and vertical gravity gradient anomalies was derived. Based on this admittance function, the bathymetry model of 1 minute resolution was predicted from vertical gravity gradient anomalies
Hu Minzhang   +3 more
doaj   +2 more sources

Simultaneous accurate determination of both gravity and its vertical gradient [PDF]

open access: yesPhysical Review A, 2019
We present a method for the accurate measurements of both the gravity acceleration and its vertical gradient using a dual atom interferometer, in principle free from any uncertainty related to the absolute or relative positions of the two atomic samples.
Caldani, R.   +3 more
openaire   +6 more sources

Generalized model for a Moho inversion from gravity and vertical gravity-gradient data [PDF]

open access: yesGeophysical Journal International, 2016
Zhourun Ye   +4 more
openaire   +2 more sources

A New 1′ × 1′ Global Seafloor Topography Model Predicted from Satellite Altimetric Vertical Gravity Gradient Anomalyand Ship Soundings BAT_VGG2021

open access: yesRemote Sensing, 2021
In this paper, we construct a new 1′ × 1′ global seafloor topography model, BAT_VGG2021, using the satellite altimetric vertical gravity gradient anomaly model (VGG), SIO curv_30.1.nc, and ship soundings.
Minzhang Hu   +5 more
semanticscholar   +1 more source

On the Consistency between a Classical Definition of the Geoid-to-Quasigeoid Separation and Helmert Orthometric Heights

open access: yesSensors, 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
doaj   +1 more source

Megathrust Slip Behavior for Great Earthquakes Along the Sumatra-Andaman Subduction Zone Mapped From Satellite GOCE Gravity Field Derivatives

open access: yesFrontiers in Earth Science, 2021
During the last two decades, space geodesy allowed mapping accurately rupture areas, slip distribution, and seismic coupling by obtaining refined inversion models and greatly improving the study of great megathrust earthquakes.
Orlando Álvarez   +5 more
doaj   +1 more source

Measurement of the Gravity-Field Curvature by Atom Interferometry [PDF]

open access: yes, 2015
We present the first direct measurement of the gravity-field curvature based on three conjugated atom interferometers. Three atomic clouds launched in the vertical direction are simultaneously interrogated by the same atom interferometry sequence and ...
Cacciapuoti, L.   +5 more
core   +2 more sources

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