Articles | Volume 11, issue 5
https://doi.org/10.5194/se-11-1849-2020
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, Matt King, and Christopher Watson

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Latest update: 24 Feb 2024
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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.