Results 161 to 170 of about 61,254 (215)

On the Chandler wobble of Mars

Planetary and Space Science, 1996
Abstract The possibility of determination of the aggregative state and the radius of the Martian core by Chandler wobble data is discussed. The polar motion under consideration is excited by the Martian atmosphere and convective flow in the liquid core.
V.N. Zharkov, S.M. Molodensky
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The excitation of the Chandler wobble

Surveys in Geophysics, 1988
The cause- or causes-of the excitation of the Chandler wobble is one of the most intriguing problems in geophysics. As a result of one of the most valuable examples of an international programme, the positions of the pole have been determined since the late 19th century with remarkable accuracy.
S. K. Runcorn, G. A. Wilkins, E. Groten, H. Lenhardt, J. Campbell, R. Hide, B. F. Chao, A. Souriau, J. Hinderer, H. Legros, J. -L. Le Mouel, M. Feissel   +11 more
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Spectral Analyses of the Chandler Wobble

Symposium - International Astronomical Union, 1972
Spectral analyses of 70 yr of ILS-IPMS data on the variation of latitude are discussed from the point of view of the confidence limits that can be placed on statistical estimates. The available data cannot be used to support the existence of two resonant frequencies in the Chandler wobble, nor are the latter required to remove an anomaly in the value ...
G. P. H. Pedersen, M. G. Rochester
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Oceanic excitation of the chandler wobble

Advances in Space Research, 2002
We estimate the oceanic contribution to the excitation of the Chandler wobble using an 11-year time series of ocean angular momentum. The time domain comparison of this series with the non-atmospheric excitation inferred from the polar motion and atmospheric angular momentum data shows a high correlation over most of the period of 1985 to 1996 when ...
Aleksander Brzeziński, Jolanta Nastula
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On modulations of the Chandler wobble excitation

Journal of Geodynamics, 2012
Abstract We derive the Chandler wobble excitation from the polar motion (PM) observations by using the Panteleev corrective filtering. The latter method is based on inversion of the Euler–Liouville equation, with additional filtering in the Chandler frequency band.
Zotov, L., Bizouard, C.
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On the Ellipticity of the Chandler Wobble

Publications of the Astronomical Society of Japan, 1977
Abstract On the basis of the assumption of the statistically stationary random process for the excitation of the Chandler wobble with the constant effective damping coefficient α, the statistical relations are derived for the spectral densities and powers of the wobble. It is then shown for the real Earth that the non-isotropic component
Isao Okamoto, Tetsuo Sasao
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Chandler Wobble, earthquakes, rotation, and geomagnetic changes

Nature, 1975
A pattern recognition algorithm can be applied to the seismicity of major earthquake belts, to the amplitudes of Chandler Wobble, to changes in the rotational velocity of the Earth, and to the drift of the eccentric geomagnetic dipole for the years 1901–64. The patterns which emerged suggest that all of these diverse phenomena are related.
Frank Press, Peter Briggs
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On the Chandler wobble. I. Theory

Chinese Astronomy and Astrophysics, 1981
Abstract This paper introduces the idea that there exists a nutation separation layer in the superficial zone of the Earth, thereby sets up a new model of nutation. The equations of motion are derived and solved. It is proved that the separation layer is “soft”, and is probably located at a depth of 300 km from the surface.
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CHANDLER WOBBLE AND LOD ANOMALYES IN 2010-2020S

19th Annual Meeting of the Asia Oceania Geosciences Society, 2023
L. Zotov, C. Bizouard, N. Sidorenkov
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Seismic Excitation of the Chandler Wobble

1970
Results from the elasticity theory of dislocations as well as observational evidence are presented in support of the hypothesis of seismic excitation of the Chandler wobble. There appears to be a high degree of correlation between changes in the pole path and earthquakes with M > 7.5 in the 11 year period from 1957.0 to 1968.0.
L. Mansinha, D. E. Smylie
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