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Modelling of sub-diurnal polar motion from hydro-atmospheric excitation

Authors

Bizouard,  Christian
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Cheng,  Yuting
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Lambert,  Sébastien
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Bizouard, C., Cheng, Y., Lambert, S. (2023): Modelling of sub-diurnal polar motion from hydro-atmospheric excitation, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1868


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017695
Abstract
In light of recent GNSS estimates of the pole coordinates at hourly resolution by Cheng et al (2023), we revisit the problem of the subdiurnal excitation of the polar motion through the mass redistribution within the atmosphere and the oceans. The modelled atmospheric and oceanic angular momentum as computed by GFZ is compared to the geodetic excitation derived from the results of Cheng et al (2023).