Long-period tidal factors at Antarctica Syowa Station determined from 10 years of superconducting gravimeter data

摘要: [1] We determined long-period gravimetric tidal parameters from 10 years of superconducting gravimeter observations at Syowa Station in Antarctica. The obtained amplitude and phase lead for the Mm wave were 6.106 ± 0.030 μGal (μGal = 10−8 m s−2), 0.32° 0.28°, respectively, those Mf 11.657 0.018 μGal, 0.78° 0.09°, respectively. We also other constituents with periods 6 to 32 days; Mqm, Msqm, Mtm, Mstm, Msf, Msm, their frequency dependence was estimated by means a weighted least squares method. observed values, corrected four ocean tide models Schwiderski, NAO.99L, FES99, TPXO6.0, compared theoretical values calculated elastic inelastic solid Earth Dehant et al. Even though corrections have relatively large discrepancies between it is still difficult discuss degree inelasticity this band, we can say that favor model rather than model.