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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Gravity anomalies and lithospheric flexure around the Longmen Shan deduced from combinations of in situ observations and EGM2008 data

Fig. 4

The covariance values of the FGAs residuals between measurements and EGM2008 data change with the distance d between any two observation stations, and the linear fitting result of the covariance. a The covariance values of the residuals (\(C_{\text{res}}\)) change with the distance between two observation stations. b The linear fitting result of \(C_{\text{res}}\) and the covariance function \(\hat{C}_{\text{res}}\), which can be expressed as \(\hat{C}_{\text{res}} = C_{1} + C_{2} d\).\(C_{1}\) and \(C_{2}\) are the parameters of the covariance function, which are calculated by fitting the \(C_{\text{res}} > 0\)

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