Results 21 to 30 of about 1,547,748 (299)
Polar motion at seasonal frequencies [PDF]
Journal of Geodynamics, 1996 report
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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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Study of Convolutional Neural Networks for Global Parametric Motion Estimation on Log-Polar Imagery
IEEE Access, 2020 The problem of motion estimation from images has been widely studied in the past. Although many mature solutions exist, there are still open issues and challenges to be addressed.
V. Javier Traver, Roberto Paredes
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Water Resources Research, 2023 Given the success of the Gravity Recovery and Climate Experiment (GRACE) mission in mapping terrestrial water storage (TWS) since 2002, recent reconstructions of long‐term TWS rely on the use of statistical machine learning to apply GRACE‐derived ...
Shanshan Deng, Yuxin Liu, Wenxi Zhang
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Brownian Motion With Polar Drift [PDF]
Transactions of the American Mathematical Society, 1985 Consider a strong Markov process X 0 {X^0}
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Geodesy: General theory and methodology 2015–2018 [PDF]
Geodesy and Cartography, 2019 The summary of research activities concerning general theory and methodology performed in Poland in the period of 2015–2018 is presented as a national report for the 27th IUGG (International Union of Geodesy and Geophysics) General Assembly.
Andrzej Borkowski +2 more
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IGS polar motion measurement accuracy
Geodesy and Geodynamics, 2017 We elaborate an error budget for the long-term accuracy of IGS (International Global Navigation Satellite System Service) polar motion estimates, concluding that it is probably about 25–30 μas (1-sigma) overall, although it is not possible to quantify ...
Jim Ray, Paul Rebischung, Jake Griffiths
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A New Parameterization of Polar Motion [PDF]
International Astronomical Union Colloquium, 1980 AbstractThe rotational motion of the earth is decomposed into spin, polar motion and local motions. The rotation vector components are associated to phenomena such as precession, nutation, diurnal spin, polar motion and local motions. The above decomposition is accomplished without refering to an earth-fixed CIO pole or BIH zero meridian. The time-like
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The polar sciences journal: the past and future of a crucial research instrument
, 2022 Journals dedicated to the polar sciences have been outliers. Within both the history of science and the history of media, they stand out in several ways, including their comparatively late establishment of peer-review. It was not until the second half of
Gielas, Anna M.
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On the external forcing of global eruptive activity in the past 300 years
Frontiers in Earth Science, 2023 The decryption of the temporal sequence of volcanic eruptions is a key step in better anticipating future events. Volcanic activity results from a complex interaction between internal and external processes, with time scales spanning multiple orders of ...
J-L. Le Mouël +16 more
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