Results 61 to 70 of about 84,388 (175)
Journal of Geophysical Research: Solid Earth, Volume 129, Issue 5, May 2024.Abstract In a previous study (Okamoto & Hiraga, 2022, https://doi.org/10.1029/2022jb024638), we concluded that diffusion creep and grain growth in polymineralic rocks proceed by a common diffusional mechanism. Here, we built on that finding and estimated lower mantle grain size and viscosity during a single mantle convection cycle dominated by ...
A. Okamoto, T. Hiraga
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Amplitude‐Dependent Energy Dissipation Inferred From Spectral Analyses of Intraslab Earthquakes
Journal of Geophysical Research: Solid Earth, Volume 129, Issue 5, May 2024.Abstract While the Earth (rocky planet) can be approximated as an elastic body, it also possesses anelasticity, Q−1, which causes energy dissipation (intrinsic attenuation) during deformation. Rock deformation experiments have demonstrated that Q−1 shows a marked amplitude dependency for strain of >∼10−6, but seismic‐waves‐induced strain is generally ...
Hayato Tero, Junichi Nakajima
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Did the 1977 Sumba earthquake excite the Chandler wobble?
, 1997 The potential role of large earthquakes on the excitation of the Earth's free wobble has been the subject of various investigations. It is nowadays recognized that the coseismic moment released by large earthquakes is not large enough to maintain the ...
L. Alfonsi +5 more
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Letter with attachment: Gertrude Chandler to Ida M. Tarbell, January 2, 1931 [PDF]
, 1931 Letter with letter, S.A.
Chandler, Gertrude
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On Estimation of the Period of Chandler Wobble
, 1985 Исходя из гипотезы о регулярных биениях в движении полюсов Земли, дается уточненное значение периода Чандлера, равное 431.65 суткам.A more accurate estimation of the period of Chandler wobble (431.65 days) is given using the hypothesis of regular beating
Олевский, В.А.
core
The Excitation of the Chandler Wobble by Earthquakes [PDF]
Geophysical Journal International, 1971 Summary Elastic dislocation theory has been extended to deal with point tangential displacement dislocations in a spherically symmetric, self-gravitating Earth model with a fluid core and with arbitrary radial variations in density and in the elastic velocities. This theory may be used to compute the changes in the products of inertia of a realistic
openaire +1 more source
Inner core static tilt inferred from intradecadal oscillation in the Earth's rotation. [PDF]
Nat Commun, 2023 An Y, Ding H, Chen Z, Shen W, Jiang W.
europepmc +1 more source
A stochastic excitation model for the study of the Chandler wobble
, 2002 Based on the hypothesis that the Chandler wobble is excited by stochastic motions, a nonlinear, stochastic model is proposed consisting of a random Heaviside step function and an Eulerian centred differential scheme for a linear oscillator with drag. The
Zhu, YL, Liao, XH, Huang, SY
core
, 1983 The principal purpose of this paper is to examine whether movement of matter in a stratified viscoelastic earth can enhance the excitation of the Chandler wobble.
Boschi E. +5 more
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Inversion of polar motion data: Chandler wobble, phase jumps, and geomagnetic jerks
, 2008 International audienceWe reconsider the analysis of the polar motion with a method totally different from the wavelet analysis used in previous papers.
Le Mouël, Jean-Louis, Gibert, Dominique
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