Fig. 6
Error budget analysis: potential field assumption. Box and whisker plots of the differences (absolute value) between the expected N-S displacement (v) and the computed from (a) \({\phi}_{u}\) and (b) \({\phi}_{w}\) versus Pz/Px = Py ratio, when the potential theory no longer verified. (c, d) Expected N-S displacement (v) and the computed from \({\phi}_{u}\) and \({\phi}_{w}\), respectively, versus Pz=Px/Py ratio. Blue boxes delineate the distribution from the 25th to the 75th percentile, while the red lines are the median values; red crosses represent the outliers.
