Results 51 to 60 of about 61,254 (215)

Research on Polar Motion Prediction Based on Radial Basis Function Neural Network Interpolation

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract Accurate prediction of polar motion are crucial for various scientific fields, including astronomy, geoscience, and oceanography. The temporal resolution of the modeling data currently utilized in polar motion prediction research is 1 day. This paper proposes to use multiple interpolation methods to interpolate the polar motion observation ...
Fei Wu, Zefeng Yan, Leyang Wang, Xinbo Li   +3 more
wiley   +1 more source

On the amplitude of the Chandler wobble [PDF]

Geophysical Journal International, 1977
The change in the inertia tensor of the Earth, due to the mass shift following a seismic event, has been computed by several authors for non-rotating earth models. Rotation is taken into account in the present paper, and the additional change in the inertia tensor is computed for an equivalent earth model, in which the axis of geometrical symmetry ...
M. Bonafede, E. Boschi
openaire   +1 more source

Fine Detection of Transient Signals in GNSS Time Series Using Multi‐Station Hankel Spectrum Analysis

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract Fine detection of micro‐transient deformations exhibiting diverse spatiotemporal patterns is crucial for unraveling geophysical processes in geodetic data sets, despite the challenges posed by high noise levels and correlated periodic signals.
Kunpeng Shi, Xiaodong Chen, Heping Sun, Hao Ding, Rumeng Guo, Xingli Fan   +5 more
wiley   +1 more source

The Earth's figure axis determined from the polar motion data [PDF]

, 2012
The polar motion data is analyzed to obtain accurate position of the figure axis referred to the Earth-fixed frame. The variation of the figure axis should be the basic object to which the geophysical events are linked.
Kubo, Yoshio
core  

Direct measurement of diurnal polar motion by ring laser gyroscopes [PDF]

, 2004
We report the first direct measurements of the very small effect of forced diurnal polar motion, successfully observed on three of our large ring lasers, which now measure the instantaneous direction of Earth's rotation axis to a precision of 1 part in ...
A. Velikoseltsev, Agnew, Brzeziński, D. L. Wiltshire, Dunn, Frede, G. E. Stedman, K. U. Schreiber, M. Rothacher, Schreiber, Schreiber, Stedman, T. Klügel, Wahr   +13 more
core   +2 more sources

Assimilation of Earth rotation parameters into a global ocean model: excitation of polar motion [PDF]

, 2011
The oceanic contribution to Earth rotation anomalies can be manifold. Possible causes are a change of total ocean mass, changes in current speed or location and changes in mass distribution.
Saynisch, J., Schröter, Jens, Wenzel, Manfred   +2 more
core   +2 more sources

Climate‐Induced Polar Motion: 1900–2100

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract It has been demonstrated that the motion of the Earth's rotational pole with respect to the crust—termed polar motion—is increasingly influenced by barystatic processes, that is, continental‐ocean mass redistribution due to melting of polar ice sheets, global glaciers, and variations in terrestrial water storage.
Mostafa Kiani Shahvandi, Benedikt Soja
wiley   +1 more source

Prospects of Predicting the Polar Motion Based on the Results of the Second Earth Orientation Parameters Prediction Comparison Campaign

Earth and Space Science, Volume 11, Issue 11, November 2024.
Abstract Growing interest in Earth Orientation Parameters (EOP) resulted in various approaches to the EOP prediction algorithms, as well as in the exploitation of distinct input data, including the observed EOP values from various operational data centers and modeled effective angular momentum functions.
Tomasz Kur, Justyna Śliwińska‐Bronowicz, Malgorzata Wińska, Henryk Dobslaw, Jolanta Nastula, Aleksander Partyka, Santiago Belda, Christian Bizouard, Dale Boggs, Sara Bruni, Lue Chen, Mike Chin, Sujata Dhar, Robert Dill, PengShuo Duan, Jose M. Ferrandiz, Junyang Gou, Richard Gross, Sonia Guessoum, Songtao Han, Robert Heinkelmann, ChengLi Huang, Christopher Irrgang, Jacek Kudrys, Jia Li, Marcin Ligas, Lintao Liu, Weitao Lu, Volker Mayer, Wei Miao, Maciej Michalczak, Sadegh Modiri, Michiel Otten, Todd Ratcliff, Shrishail Raut, Jan Saynisch‐Wagner, Matthias Schartner, Erik Schoenemann, Harald Schuh, M. Kiani Shahvandi, Benedikt Soja, Xiaoqing Su, Daniela Thaller, Maik Thomas, Guocheng Wang, Yuanwei Wu, CanCan Xu, Xueqing Xu, Xinyu Yang, Xin Zhao, Zhijin Zhou   +50 more
wiley   +1 more source

Sloshing Model for ENSO

, 2020
The El Nino southern oscillation (ENSO) behavior can be effectively modeled as a response to a 2nd-order Mathieu/Hill differential equation with periodic coefficients describing sloshing of a volume of water. The forcing of the equation derives from QBO,
Pukite, Paul R.
core  

The fluctuation perturbations in the model of the Chandler wobble

IOP Conference Series: Materials Science and Engineering, 2018
The combinative model of the fluctuations of the Earth Pole taking into account the stochastic components of the Pole tide is developed. The effects of the fluctuation-dissipative perturbations on the frequency that is near to the Chandler one are ...
V. Bondarenko, S. Krylov, V. Perepelkin
semanticscholar   +1 more source