Fig. 1From: Mass-related excitation of polar motion: an assessment of the new RL06 GRACE gravity field modelsComparison of the CSR RL05 (blue) and CSR RL06 (red) solutions for the normalized spherical harmonic potential coefficients \(\Delta \bar{C}_{21}\) and \(\Delta \bar{S}_{21}\) (mean values of the time series are removed). The corresponding correlation coefficient and relative standard deviation (RSD) are providedBack to article page