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View article: GRACE Detection of Transient Mass Redistributions During a Mineral Phase Transition in the Deep Mantle
GRACE Detection of Transient Mass Redistributions During a Mineral Phase Transition in the Deep Mantle Open
The temporal evolution of the core‐mantle boundary (CMB) is of critical importance in elucidating the dynamic interactions between the fluid core and the solid mantle, but remains largely unknown. To investigate corresponding mass redistri…
View article: Earth’s Tidal Response for Maxwell, Burgers, Andrade and Sundberg-Cooper rheological models of the mantle 
Earth’s Tidal Response for Maxwell, Burgers, Andrade and Sundberg-Cooper rheological models of the mantle  Open
Tidal forces represent a significant external influence on Earth's deformation and have been extensively studied, beginning with Lord Kelvin (W. Thomson, 1862), who first calculated the elastic deformation of a homogeneous, incompressible …
View article: GRACE observations of rapid mass variations at the core-mantle boundary during deep mantle phase transitions in interaction with core flow
GRACE observations of rapid mass variations at the core-mantle boundary during deep mantle phase transitions in interaction with core flow Open
Sudden changes in the secular variation of the geomagnetic field, the geomagnetic jerks, provide information about the dynamics of the core at short timescales. How this dynamics may be coupled to changes in the core-mantle boundary (CMB) …
View article: Potential links between internal and external geodynamics at periods around 6 years
Potential links between internal and external geodynamics at periods around 6 years Open
The GRACEFUL project aims to better understand dynamic processes in the Earth’s deep interior using a combination of satellite observations of the Earth’s magnetic field, gravity field, and rotation. Significant oscillations at…
View article: French Gravimetry Organization and its Instrumental Park
French Gravimetry Organization and its Instrumental Park Open
International audience
View article: Subsurface tidal gravity variation and gravimetric factor
Subsurface tidal gravity variation and gravimetric factor Open
SUMMARY Taking advantage of the simultaneous recording during 471 d between 2019 and 2021 by two superconducting gravimeters installed at the surface and 520 m under the surface at the Low Noise Underground Laboratory (LSBB) in Rustrel, Fr…
View article: Gravitational Constraints on the Earth's Inner Core Differential Rotation
Gravitational Constraints on the Earth's Inner Core Differential Rotation Open
The differential axial rotation of the solid inner core (IC) is suggested by seismic observations and expected from core dynamics models. A rotation of the IC by an angle α takes its degree 2, order 2 topography (peak‐to‐peak amplitude δh …
View article: Uncertainty of Low‐Degree Space Gravimetry Observations: Surface Processes Versus Earth's Core Signal
Uncertainty of Low‐Degree Space Gravimetry Observations: Surface Processes Versus Earth's Core Signal Open
Space gravity measurements have been mainly used to study the temporal mass variations at the Earth's surface and within the mantle. Nevertheless, mass variations due to the Earth's core might be observable in the gravity field variations …
View article: Continuous Gravity Observations at Mt. Somma-Vesuvius with a gPhoneX Gravimeter: In-Depth Instrumental Response Characterization and Tidal Model
Continuous Gravity Observations at Mt. Somma-Vesuvius with a gPhoneX Gravimeter: In-Depth Instrumental Response Characterization and Tidal Model Open
We report on the results of about 9 months of gravimetric recordings acquired at Mt. Somma-Vesuvius (SV) volcano (Southern Italy) with the new generation relative gravimeter gPhoneX#116 (gPh#116), which is a gravimeter specifically designe…
View article: Uncertainty of low-degree space gravimetry observations: surface processes versus internal signal
Uncertainty of low-degree space gravimetry observations: surface processes versus internal signal Open
Space gravity measurements have been mainly used to study the temporal mass variations at the Earth’s surface and within the mantle. Nevertheless, mass variations due to the Earth’s core might be observable in the gravity field variations …
View article: Catching the time-variable gravity at Mt. Somma-Vesuvius volcano (Southern Italy) by means of discrete and continuous relative gravity measurements
Catching the time-variable gravity at Mt. Somma-Vesuvius volcano (Southern Italy) by means of discrete and continuous relative gravity measurements Open
We report the results of about 20 years of relative gravity measurements acquired on Mt. Somma-Vesuvius INGV monitoring network, together with about 9 months of continuous gravimetric recordings collected with the new generation relative g…
View article: Detections of a 6-year cycle in the Earth system
Detections of a 6-year cycle in the Earth system Open
A cycle of about 6 years has long been observed in the Earth’s magnetic field, length of day, dynamic oblateness, polar motions and surface displacements and attributed to dynamical processes occurring in the core and at the core man…
View article: Editorial note for the geodesy and geodynamics journal special issue contemporary research in geodynamics and earth tides - Selection from the 19th international symposium on geodynamics and earth tides, 2021, Wuhan, China
Editorial note for the geodesy and geodynamics journal special issue contemporary research in geodynamics and earth tides - Selection from the 19th international symposium on geodynamics and earth tides, 2021, Wuhan, China Open
International audience
View article: Comparison of gap-filling temporal methods to improve GRACE and GRACE-FO time series
Comparison of gap-filling temporal methods to improve GRACE and GRACE-FO time series Open
<p class="western">The GRACE and GRACE Follow-On missions are separated by an 11-month gap between 2017 and 2018 and contain 22 more missing months. These gaps in the time series lead to a difficult recovery of gravity vari…
View article: Uncertainty of low-degree space gravimetry observations: surface processes versus internal signal
Uncertainty of low-degree space gravimetry observations: surface processes versus internal signal Open
Space gravity measurements have been mainly used to study the temporal mass variations at the Earth’s surface and within the mantle. Nevertheless, mass variations due to the Earth’s core might be observable in the variations of the gravity…
View article: Groundwater monitoring and characterization by a vertical dipole of superconducting gravimeters in a karst aquifer, France
Groundwater monitoring and characterization by a vertical dipole of superconducting gravimeters in a karst aquifer, France Open
The Earth's mass distribution is continuously changing due to physical processes taking place either beneath the subsurface or on the surface. Some of the primary sources for these mass variations are tides in the ocean and solid Earth, at…
View article: Perturbation of the Earth’s rotation by monochromatic gravitational waves from astrophysical sources
Perturbation of the Earth’s rotation by monochromatic gravitational waves from astrophysical sources Open
International audience
View article: Study of the accuracy of monthly time-variable satellites gravity field estimates
Study of the accuracy of monthly time-variable satellites gravity field estimates Open
<p>The GRACE and GRACE Follow-On (GRACE-FO) missions have been providing monthly time-variable gravity field estimates since 2002 with a one-year gap between 2017 and 2018. The Level 2 data products are available through several proc…
View article: Erratum: Earth’s spheroidal motion induced by a gravitational wave in flat spacetime [Phys. Rev. D <b>100</b>, 044048 (2019)]
Erratum: Earth’s spheroidal motion induced by a gravitational wave in flat spacetime [Phys. Rev. D <b>100</b>, 044048 (2019)] Open
International audience