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Fig. 1 | Earth, Planets and Space

Fig. 1

From: Detection of free core nutation resonance variation in Earth tide from global superconducting gravimeter observations

Fig. 1

Fluctuation of the FCN period (red) and the K1 (black) and ψ1 (green) waves fitted from synthetic time series. The blue stars in top and middle panels are the theoretical values of amplitude factor of K1 and ψ1 waves corresponding to the set FCN period in synthetic data. The FCN period (red) is estimated with the tidal parameters of 6 diurnal waves. The “Corr versus TFCN” represents the correlation coefficient between K1 and ψ1 waves and FCN period

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