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Dynamic Motion of Polar Skyrmions in Oxide Heterostructures. [PDF]
Nano Letters, 2023 Polar skyrmions have been widely investigated in oxide heterostructures due to their exotic properties and intriguing physical insights. However, the field-driven motion of polar skyrmions, akin to that of the magnetic counterpart, remains elusive ...
Lizhe Hu +4 more
semanticscholar +8 more sources
Climate-driven polar motion: 2003–2015 [PDF]
Sci Adv, 2016 Ice sheets and continental hydrology changes on decadal time scales are the dominant drivers of decadal scale polar motion. Earth’s spin axis has been wandering along the Greenwich meridian since about 2000, representing a 75° eastward shift from its ...
S. Adhikari, E. Ivins
semanticscholar +4 more sources
A new polar motion prediction method combined with the difference between polar motion series
Geodesy 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 higher accuracy.
Leyang Wang, Wei Miao, Fei Wu
semanticscholar +5 more sources
Secular polar motion observed by GRACE [PDF]
Journal of Geodesy, 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.
Ki-Weon Seo +4 more
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Polar motion prediction using the combination of SSA and Copula-based analysis [PDF]
Earth Planets Space, 2018 The real-time estimation of polar motion (PM) is needed for the navigation of Earth satellite and interplanetary spacecraft. However, it is impossible to have real-time information due to the complexity of the measurement model and data processing ...
S. Modiri +5 more
semanticscholar +2 more sources
Motion Ordering in Cellular Polar–Polar and Polar–Nonpolar Interactions [PDF]
Journal of the Physical Society of Japan8 pages 4 ...
Katsuyoshi Matsushita +2 more
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Polar motion at seasonal frequencies [PDF]
Journal of Geodynamics, 1996 report
GeoForschungsZentrum Potsdam (Germany) +1 more
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Atmospheric excitation of polar motion
Geo-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, XiaoWei Dong
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Modeling mobile robot motion with polar representations [PDF]
2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009 This article compares several parameterizations and motion models for improving the estimation of the nonlinear uncertainty distribution produced by robot motion. In previous work, we have shown that the use of a modified polar parameterization provides a way to represent nonlinear measurements distributions in the Cartesian space as linear ...
Joseph Djugash +2 more
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On Two Formulations of Polar Motion and Identification of Its Sources [PDF]
Géosciences, 2022 Differences in formulation of the equations of celestial mechanics may result in differences in interpretation. This paper focuses on the Liouville-Euler system of differential equations as first discussed by Laplace.
F. Lopes +3 more
semanticscholar +1 more source