The data of sixteen West European tidal gravity stations have been reprocessed. The tidal gravity factors have been corrected for ocean loading effect using the mean of 9 different ocean tides models with different grid size (0.5°, 0.25° and 0.125°). For the principal tidal waves O1 and M2 the standard deviation of the corrected amplitude factors δc is lower than 0.1%. For O1 the value δc = 1.15340 ± 0.00023 lies between the Dehant, Defraigne and Wahr, 1999 (DDW99) elastic model and the Mathews, 2001 (MAT01) inelastic model. For M2 the value δc = 1.16211 ± 0.00020 fits very well the DDW99 and the MAT01 inelastic models. For K1 the mean result δc = 1.13525 ± 0.00032 (7 Global Geodynamics Project stations and Pecny) fits the MAT01 model to better than 0.05%. We determine the FCN parameters using either generalized least-squares or a Bayesian approach and find values between 428 and 432 sidereal days for the eigenperiod and quality factor Q values around 15,000. © Springer-Verlag Berlin Heidelberg 2009.
CITATION STYLE
Ducarme, B., Rosat, S., Vandercoilden, L., Xu, J. Q., & Heping, S. (2009). European Tidal Gravity Observations: Comparison With Earth Tide Models And Estimation Of The Free Core Nutation (Fcn) Parameters. In International Association of Geodesy Symposia (Vol. 133, pp. 523–532). https://doi.org/10.1007/978-3-540-85426-5_62
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