Results 41 to 50 of about 61,254 (215)
Inelastic Dissipation in Wobbling Asteroids and Comets [PDF]
, 1998 Asteroids and comets dissipate energy when they rotate about the axis different from the axis of the maximal moment of inertia. We show that the most efficient internal relaxation happens at the double frequency of body's tumbling.
A. Lazarian +4 more
core +3 more sources
ESD Ideas: Long-period tidal forcing in geophysics – application to ENSO, QBO, and Chandler wobble
, 2020 . Apart 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 relatively unexplored.
P. Pukite
semanticscholar +1 more source
Numerical solutions of rotational normal modes of a triaxial two-layered anelastic Earth
Geodesy and Geodynamics, 2019 The Earth's rotational normal modes depend on Earth model used, including the layer structures, principal inertia moments of different layers and the compliances.
Wenbin Shen +3 more
doaj +1 more source
Hydromagnetic and gravitomagnetic crust-core coupling in a precessing neutron star
, 2004 We consider two types of mechanical coupling between the crust and the core of a precessing neutron star. First, we find that a hydromagnetic (MHD) coupling between the crust and the core strongly modifies the star's precessional modes when $t_a\le\sim ...
Blandford R. D. +4 more
core +1 more source
Journal of GeodesyWe reconstructed the Chandler Wobble (CW) from 1962 to 2022 by combining the Eigen-oscillator excited by geophysical fluids of atmospheric and oceanic angular momentums (AAM and OAM). The mass and motion terms for the AAM are further divided with respect
Xueqing Xu +3 more
semanticscholar +1 more source
Excitation of the Chandler Wobble [PDF]
International Astronomical Union Colloquium, 2000 AbstractThe redistribution of air and water masses between the Pacific and Indian oceans during the El Niño/Southern oscillation (ENSO) changes the components of the Earth’s inertia tensor and shifts the position of the pole of the Earth’s rotation. The spectrum of the ENSO has components with periods of about 6, 3.6, 2.8, and 2.4 years.
openaire +1 more source
Constraining Ceres' interior from its Rotational Motion [PDF]
, 2011 Context. Ceres is the most massive body of the asteroid belt and contains about 25 wt.% (weight percent) of water. Understanding its thermal evolution and assessing its current state are major goals of the Dawn Mission.
Carry +47 more
core +5 more sources
Period variations of the Chandler wobble
Journal of Geodesy, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +5 more sources
ENSO Modulates the Oceanic Excitation of Polar Motion
Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.Abstract The El Niño–Southern Oscillation (ENSO) exerts a strong control on interannual length‐of‐day variations, but its imprint on polar motion excitation remains to be identified. We explore the hypothesis that part of this imprint is embedded in oceanic angular momentum (OAM) changes, particularly that component driven by ocean bottom pressure pb $\
L. Börger +3 more
wiley +1 more source
The energy release in great earthquakes [PDF]
, 1977 The conventional magnitude scale M suffers saturation when the rupture dimension of the earthquake exceeds the wavelength of the seismic waves used for the magnitude determination (usually 5–50 km).
Kanamori, Hiroo
core +1 more source