Applications and challenges of GRACE and GRACE follow-on satellite gravimetry
Time-variable gravity measurements from the Gravity Recovery and Climate Experiment
(GRACE) and GRACE Follow-On (GRACE-FO) missions have opened up a new avenue of …
(GRACE) and GRACE Follow-On (GRACE-FO) missions have opened up a new avenue of …
Rapid variations of Earth's core magnetic field
Evidence of fast variations in the Earth's core field are seen both in magnetic observatory
and satellite records. We present here how they have been identified at the Earth's surface …
and satellite records. We present here how they have been identified at the Earth's surface …
The IERS EOP 14C04 solution for Earth orientation parameters consistent with ITRF 2014
C Bizouard, S Lambert, C Gattano, O Becker… - Journal of …, 2019 - Springer
Abstract The Earth Orientation Center of the International Earth Rotation and Reference
Systems Service (IERS) has the task to provide the scientific community with the …
Systems Service (IERS) has the task to provide the scientific community with the …
Singular spectrum decomposition: A new method for time series decomposition
This study introduces singular spectrum decomposition (SSD), a new adaptive method for
decomposing nonlinear and nonstationary time series in narrow-banded components. The …
decomposing nonlinear and nonstationary time series in narrow-banded components. The …
Geomagnetic jerks and rapid hydromagnetic waves focusing at Earth's core surface
Geomagnetic jerks are abrupt changes in the second time derivative—the secular
acceleration—of Earth's magnetic field that punctuate ground observatory records. As their …
acceleration—of Earth's magnetic field that punctuate ground observatory records. As their …
Measurement of the Earth's rotation: 720 BC to AD 2015
FR Stephenson, LV Morrison… - Proceedings of the …, 2016 - royalsocietypublishing.org
New compilations of records of ancient and medieval eclipses in the period 720 BC to AD
1600, and of lunar occultations of stars in AD 1600–2015, are analysed to investigate …
1600, and of lunar occultations of stars in AD 1600–2015, are analysed to investigate …
Planetary gyre, time‐dependent eddies, torsional waves, and equatorial jets at the Earth's core surface
We report a calculation of time‐dependent quasi‐geostrophic core flows for 1940–2010.
Inverting recursively for an ensemble of solutions, we evaluate the main source of …
Inverting recursively for an ensemble of solutions, we evaluate the main source of …
Geomagnetic secular acceleration, jerks, and a localized standing wave at the core surface from 2000 to 2010
A Chulliat, S Maus - Journal of Geophysical Research: Solid …, 2014 - Wiley Online Library
The geomagnetic secular acceleration (SA), defined as the second‐order time derivative of
the Earth's core magnetic field, is investigated using data from the CHAMP satellite. We …
the Earth's core magnetic field, is investigated using data from the CHAMP satellite. We …
Measurements of Newton's gravitational constant and the length of day
JD Anderson, G Schubert, V Trimble… - Europhysics …, 2015 - iopscience.iop.org
About a dozen measurements of Newton's gravitational constant, G, since 1962 have
yielded values that differ by far more than their reported random plus systematic errors. We …
yielded values that differ by far more than their reported random plus systematic errors. We …
Intradecadal variations in length of day: Coherence with models of the Earth's core dynamics
S Rosat, N Gillet - Physics of the Earth and Planetary Interiors, 2023 - Elsevier
We confirm the presence of interannual oscillations of period about 5.9 and 8.5 years in the
Earth's length of day (LOD), better visible after subtracting the atmospheric contribution …
Earth's length of day (LOD), better visible after subtracting the atmospheric contribution …