Results 151 to 160 of about 61,254 (215)
Self-consistent models of Earth's mantle and core from long-period seismic and tidal constraints
Munch FD +4 more
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Diminished Chandler Wobble After 2015: Link to Mass Anomalies in 2011
Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.Observed polar motion after 2015 is dominated by the annual wobble, due to unprecedented amplitude reduction of the Chandler Wobble component. This change is likely due to suppression of the 433‐day‐period free wobble by geophysical excitation sources ...
Taewhan Jeon +6 more
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Detection of the Chandler Wobble of Mars From Orbiting Spacecraft
Geophysical Research Letters, 2020For the first time for any planetary body other than the Earth, the free wobble of the pole called the Chandler wobble has been detected for Mars with a period of 206.9 ± 0.5 days and amplitude of 10 cm from radio tracking observations of Mars Odyssey ...
Alex Konopliv +2 more
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Anomalies of the Chandler Wobble in 2010s
Moscow University Physics Bulletin, 2022The Earth's rotation is nonuniform: the position of the pole drifts and describes circles with the annual and Chandler (433 days) periods; the Earth's rotation velocity also varies. In the beginning of 2000s, the amplitude of the Chandler wobble began to decrease and in 2017-2020 reached a historical low comparable only with the low of late 1920s.
L. Zotov, N. Sidorenkov, C. Bizouard
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, 2020
The Chandler wobble (CW) and Annual wobble (AW) are the main components of the Earth’s Polar motion, which play an important role in our understanding of their excitations.
Guocheng Wang +3 more
semanticscholar +2 more sources
The Chandler wobble (CW) and Annual wobble (AW) are the main components of the Earth’s Polar motion, which play an important role in our understanding of their excitations.
Guocheng Wang +3 more
semanticscholar +2 more sources
Nonlinear long-period tidal forcing with application to ENSO, QBO, and Chandler wobble
, 2021Apart from its known impact to variations in the Earth’s length-of-day (LOD) variations, the role of long-period tidal forcing cycles in geophysical behaviours has remained elusive.
P. Pukite
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Theoretical Model for the Chandler Wobble
Nature, 1967EULER is generally credited with having been the first to show that an axially symmetric rigid body, with a fractional difference between the equatorial and polar moments of inertia equal to that of the Earth, could undergo a free nutation with a period of about 300 days.
G. COLOMBO, I. I. SHAPIRO
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Variability of annual polar motion and its relationship to the Chandler wobble.
Proceedings of the National Academy of Sciences of the United States of AmericaGiven the large amplitude of prograde annual polar motion, we are able to quantify year-to-year variability of prograde annual excitation amplitude since pre-1900 observations.
Songyun Wang +5 more
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Characteristics of the chandler wobble
Chinese Astronomy, 1980Abstract We carried out a spectral analysis (by FFT and periodograms) on a homogenized set of data of coordinates of the Earth's pole in the period 1900–1969.9, and found the Chandler wobble to have 4 peaks at periods of 1.142, 1.169, 1.199 and 1.230 years. The two main peaks at 1.169 and 1.199 years have equal amplitudes (TABLE 4 and Fig.
Wu Shou-Xian, Wang Shu-he, Hua Ying-min
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Chandler wobble and geomagnetic jerks
Physics of the Earth and Planetary Interiors, 2001Abstract Some features of the polar motion may be due to core–mantle coupling, but no convincing quantitative mechanism has yet been proposed. Considering phase jumps in the Chandler wobble and noticing their correlation with geomagnetic jerks [J. Geophys. Res.
E. Bellanger +3 more
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