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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

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. 6

Two-dimensional contour maps of the cost function for region 5 in Exp. 1. Cost functions are calculated as functions of a (A5, A5–B5), b (A5, L5) and c (A5–B5, L5), while all the other frictional parameters are fixed to the optimum values. Stars indicate the locations of the optimum values. The contour intervals are set to be 0.5 in a and 1 in b, c

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