Articles | Volume 11, issue 5
Solid Earth, 11, 1849–1863, 2020
https://doi.org/10.5194/se-11-1849-2020

Special issue: Developments in the science and history of tides (OS/ACP/HGSS/NPG/SE...

Solid Earth, 11, 1849–1863, 2020
https://doi.org/10.5194/se-11-1849-2020

Research article 14 Oct 2020

Research article | 14 Oct 2020

Estimating ocean tide loading displacements with GPS and GLONASS

Bogdan Matviichuk et al.

Data sets

Free ocean tide loading provider H.-G. Scherneck and M. S. Bos http://holt.oso.chalmers.se/loading

CODE reprocessing product series Susnik et al. http://ftp.aiub.unibe.ch/REPRO_2015

CODE final product series for the IGS Dach et al. http://ftp.aiub.unibe.ch/CODE_MGEX

GipsyX\_Wrapper v0.1.0 B. Matviichuk https://github.com/bmatv/GipsyX_Wrapper

Model code and software

GipsyX_Wrapper-0.1.0 B. Matviichuk https://doi.org/10.5281/zenodo.4001166

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Short summary
The Earth deforms as the weight of ocean mass changes with the tides. GPS has been used to estimate displacements of the Earth at tidal periods and then used to understand the properties of the Earth or to test models of ocean tides. However, there are important inaccuracies in these GPS measurements at major tidal periods. We find that combining GPS and GLONASS gives more accurate results for constituents other than K2 and K1; for these, GLONASS or ambiguity resolved GPS are preferred.