Results 11 to 20 of about 84,388 (175)
A preliminary nonlinear analysis of the earth's chandler wobble [PDF]
Discrete Dynamics in Nature and Society, 2000 The Chandler wobble (CW) is a resonant response of the Earth rotational pole wandering around its figure axis whose excitation mechanism is still uncertain.
V. Frede, P. Mazzega
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Chandler Wobble and Free Core Nutation: Theory and Features
Journal of Astronomy and Space Sciences, 2019 Being a torque free motion of the rotating Earth, Chandler wobble is the major component in the Earth’s polar motion with amplitude about 0.05-0.2 arcsec and period about 430-435 days.
Sungho Na, Kyoung-Min Roh, Jungho Cho
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The Earth’s variable Chandler wobble [PDF]
Astronomy & Astrophysics, 2011 Aims. We investigated the causes of the Earth’s Chandler wobble variability over the past 60 years. Our approach is based on integrating of the atmospheric and oceanic angular momentum computed by global circulation models. We directly compared the result of the integration with the Earth’s pole coordinate observed by precise astrometric, space, and ...
Bizouard, C. +4 more
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Chandler Wobble: Stochastic and Deterministic Dynamics [PDF]
, 2016 10 pages, 3 figures. v2: Briefly clarified incompatibility of forced resonance model with estimated quality factor, improved references, adjustments to title and abstract, change of format. Presented at the 13th International Conference, Dynamical Systems - Theory and Applications (DSTA '2015), {\L}\'od\'z, Poland, 7-10 Dec ...
Jenkins Villalobos, Alejandro +1 more
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Prediction of the Chandler wobble
, 2014 Chandler wobble amplitude have been decreasing in 2010s as in 1930s. We try to predict its future behaviour through prediction of its complex envelope. The excitation of the Chandler wobble(ChW) reconstructed by Panteleevs filter was also analized.
Zotov, Leonid, Bizouard, Christian
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Anomalies of the Chandler Wobble in 2010s
Moscow University Physics Bulletin, 2022 The 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.
Zotov, L., Sidorenkov, N., Bizouard, Ch.
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Polar Motion Dynamics on Slow‐Rotating Venus: Signatures of Mantle Flow
AGU AdvancesWith its 1 day lasting 243 days on Earth, Venus is the slowest‐spinning planet in the Solar System and its rotational bulge is anomalously small. A rotational bulge stabilizes the orientation of planets. Having only a tiny stabilizer, the rotational pole
Vojtěch Patočka +2 more
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Cryospheric Excitation on the Earth's Chandler Wobble and Implications From a Warming World
Geophysical Research LettersLeveraging Gravity Recovery and Climate Experiment mascon products spanning from April 2002 to September 2023, we, for the first time, ascertain the substantial influence of cryospheric mass variations on Earth's Chandler wobble (CW).
CanCan Xu +6 more
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The Chandler wobble and Solar day [PDF]
, 2012 This work supplements the main results given in our paper "The Chandler wobble is a phantom" (eprint arXiv:1109.4969) and refines the reasons for which researchers previously failed in interpreting the physical meaning of observed zenith distance variations.The main reason for the Chandler wobble problem emergence was that, in analyzing time series ...
Kiryan, D. G., Kiryan, G. V.
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The source of the variable Chandler wobble
, 2010 n the absence of forcing, the Chandler wobble (CW) would have a period of 430.3 days, and would lose most of its energy after a few decades because of dissipation in the mantle and in the oceans. Observation of the Earths polar motion, however, reveals a prograde oscillation of which pseudo period can be as far as 20 days from the above value (Vondrak ...
Bizouard, Christian +4 more
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