Results 1 to 10 of about 160,271,459 (177)

Benchmark forward gravity schemes: the gravity field of a realistic lithosphere model WINTERC-G [PDF]

open access: yesSolid Earth, 2022
Several alternative gravity forward modelling methodologies and associated numerical codes with their own advantages and limitations are available for the solid Earth community.
B. C. Root   +8 more
doaj   +1 more source

Limitations in Testing the Lense–Thirring Effect with LAGEOS and the Newly Launched Geodetic Satellite LARES 2

open access: yesUniverse, 2023
The new geodetic satellite LARES 2, cousin of LAGEOS and sharing with it almost the same orbital parameters apart from the inclination, displaced by 180 deg, was launched last year. Its proponents suggest using the sum of the nodes of LAGEOS and of LARES
Lorenzo Iorio
doaj   +1 more source

Is There Still Something Left That Gravity Probe B Can Measure?

open access: yesUniverse, 2020
We perform a full analytical and numerical treatment, to the first post-Newtonian (1pN) order, of the general relativistic long-term spin precession of an orbiting gyroscope due to the mass quadrupole moment J 2 of its primary without any ...
Lorenzo Iorio
doaj   +1 more source

GRAVITY ANOMALY ASSESSMENT USING GGMS AND AIRBORNE GRAVITY DATA TOWARDS BATHYMETRY ESTIMATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The Earth’s potential information is important for exploration of the Earth’s gravity field. The techniques of measuring the Earth’s gravity using the terrestrial and ship borne technique are time consuming and have limitation on the vast area.
A. Tugi   +7 more
doaj   +1 more source

Gravity field due to a homogeneous oblate spheroid: Simple solution form and numerical calculations

open access: yesContributions to Geophysics and Geodesy, 2011
We present a simple derivation of the interior and exterior gravitational potentials due to oblate spheroid and also its gravity field components by using the fundamental solution of the Laplace equation in oblate spheroidal coordinates.
Milan HVOŽDARA, Igor KOHÚT
doaj   +1 more source

On Testing Frame-Dragging with LAGEOS and a Recently Announced Geodetic Satellite

open access: yesUniverse, 2018
Recently, Ciufolini and coworkers announced the forthcoming launch of a new cannonball geodetic satellite in 2019. It should be injected in an essentially circular path with the same semimajor axis a of LAGEOS (Laser Geodynamics Satellite), in orbit ...
Lorenzo Iorio
doaj   +1 more source

Dynamics of an acoustically trapped sphere in beating sound waves

open access: yesPhysical Review Research, 2021
A focused acoustic standing wave creates a Hookean potential well for a small sphere and can levitate it stably against gravity. Exposing the trapped sphere to a second transverse traveling sound wave imposes an additional acoustic force that drives the ...
Mohammed A. Abdelaziz, David G. Grier
doaj   +1 more source

A signal-strength model for gravity-field spectrum components in a local space

open access: yesAnnals of Geophysics, 2013
In the Earth gravity-field model, potential coefficients are projections of the Earth gravitational potential on the corresponding spherical harmonics by degree and order.
Liu Hongwei, Wang Zhaokui, Zhang Yulin
doaj   +1 more source

A mathematical model of the bathymetry- generated external gravitational field

open access: yesContributions to Geophysics and Geodesy, 2010
The currently available global geopotential models and the global elevation and bathymetry data allow modelling the topography-corrected and bathymetry stripped reference gravity field to a very high spectral resolution (up to degree 2160 of spherical ...
Robert TENZER, Peter VAJDA, K. HAMAYUN
doaj   +1 more source

The inverse problem of the gravitational field of planets as a physical problem

open access: yesГеофизический журнал, 2012
A key feature of the new physical method of interpretation of the Earth's gravity field is determination of the sequence of discrete characteristics of density structures - the mass moments with respect to local rectangular coordinate system. Information
Yu. A. Tarakanov, O. V. Karagios
doaj   +1 more source

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