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Fig. 11 | Earth, Planets and Space

Fig. 11

From: Adjoint-based direct data assimilation of GNSS time series for optimizing frictional parameters and predicting postseismic deformation following the 2003 Tokachi-oki earthquake

Fig. 11

Examples of postseismic time series in the application to real GNSS time series. The red and blue circles indicate the GNSS time series in X and Y directions. The pink, red, and orange lines are the theoretical time series in the X direction calculated by using the first-guess values, the optimum values when only frictional parameters are optimized and the optimum values when frictional parameters and initial values are simultaneously optimized, respectively. The light blue, blue, and green lines indicate the corresponding theoretical time series in the Y-direction. The locations of the GNSS stations are indicated in Fig. 1

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