Research Article
Hydrological Excitation of Polar Motion Derived from GRACE Gravity Field Solutions
Table 1
Amplitude and phase of seasonal variations estimated from geodetic residuals (G-A-O), GRACE, CPC, and GLDAS-based excitations. For the annual variations, we note that GRACE-based excitation reach a better agreement in amplitude with geodetic residuals than the models.a
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aThe reference date for the phase is 2004 January 1, 0h UTC. |