805707.fig.004a
(a)
805707.fig.004b
(b)
805707.fig.004c
(c)
805707.fig.004d
(d)
Figure 4: Well configuration and boundary conditions for different scenarios: (a) 111 piezometers; (b) 63 piezometers; (c) 32 piezometers; (d) 10 piezometers. The cross represents the conditioning wells (the observed piezometric heads that are used to model calibration), and the circle indicates a validation well (to examine the prediction capacity of the calibrated model at an unobserved location).