Results 1 to 10 of about 61,418 (298)

A new polar motion prediction method combined with the difference between polar motion series

open access: yesGeodesy and Geodynamics, 2022
After the first Earth Orientation Parameters Prediction Comparison Campaign (1st EOP PCC), the traditional method using least-squares extrapolation and autoregressive (LS + AR) models was considered as one of the polar motion prediction methods with ...
Leyang Wang, Wei Miao, Fei Wu
doaj   +4 more sources

Climate‐Induced Polar Motion: 1900–2100

open access: yesGeophysical Research Letters
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 ...
Mostafa Kiani Shahvandi, Benedikt Soja
doaj   +3 more sources

Analysis of 25 Years of Polar Motion Derived from the DORIS Space Geodetic Technique Using FFT and SSA Methods [PDF]

open access: yesSensors, 2020
Polar motion (PM) has a close relation to the Earth’s structure and composition, seasonal changes of the atmosphere and oceans, storage of waters, etc.
Qiaoli Kong   +5 more
doaj   +2 more sources

Secular polar motion observed by GRACE. [PDF]

open access: yesJ Geod, 2021
AbstractA long-term drift in polar motion (PM) has been observed for more than a century, and Glacial Isostatic Adjustment (GIA) has been understood as an important cause. However, observed PM includes contributions from other sources, including contemporary climate change and perhaps others associated with Earth’s interior dynamics.
Seo KW   +4 more
europepmc   +6 more sources

Polar Motion Ultra-Short-Term Prediction of Least-Squares+Multivariate Autoregressive Hybrid Method by Using the Kalman Filter [PDF]

open access: yesSensors
The polar motion (PM, including two parameters PMx and PMy) ultra-short-term prediction (1–10 days) is demanded in the real-time navigation of satellites and spacecrafts.
Zhirong Tan, Fei Ye, Liangchun Hua
doaj   +2 more sources

Kimura’s contributions on Earth polar motion studies [PDF]

open access: yesProceedings of the Japan Academy. Series B, Physical and Biological Sciences
Kimura’s discovery of z-term in the polar motion (Astron. J. 22, 107 (1902) and Astron. Nachr. 158, 233 (1902)) was recognized as an epoch-making scientific achievement for modern Japan, opening its doors to the world in 1868.
Masanori IYE
doaj   +2 more sources

Atmospheric excitation of polar motion

open access: yesGeo-Spatial Information Science, 2010
The polar motion excited by the fluctuation of global atmospheric angular momentum (AAM) is investigated. Based on the global AAM data, numerical results demonstrate that the fluctuation of AAM can excite the seasonal wobbles (e.g., the 18-month wobble) and the Chandler wobble, which agree well with previous studies.
Wei Chen, Wenbin Shen
exaly   +2 more sources

Electroencephalography Enables Continuous Decoding of Hand Motion Angles in Polar Coordinates [PDF]

open access: yesCyborg and Bionic Systems
Hand movements in task space are typically represented using either Cartesian or polar coordinate systems. While Cartesian coordinates are commonly used in electroencephalography (EEG)-based brain–computer interface (BCI) studies, polar coordinates offer
Xiaohan Lu   +6 more
doaj   +2 more sources

Climate-driven polar motion: 2003–2015 [PDF]

open access: yesScience Advances, 2016
Surendra Adhikari, Erik R Ivins
exaly   +2 more sources

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