Updating Soil Spatial Variability and Reducing Uncertainty in Soil Excavations by Kriging and Ensemble Kalman Filter

Figure 6

Reference field (a), initial estimation (i.e., ensemble mean) (b), updated estimation after excavating the 1st layer (c), updated estimation after excavating the 2nd layer (d), updated estimation after excavating the 3rd layer (e), and updated estimation after excavating the 4th layer (f).

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