Fig. 3. Average scaled conductivities, R (Eq. [16]), for pressure heads between 0 and –100 cm. The averages were calculated for pressure intervals of 1 cm between 0 and –10 cm, 2 cm between –10 and –50 cm, and intervals of –5 cm between –50 and –100 cm. The piece-wise linear curve indicates the most optimal path through the data between –40 and 0 cm (Eq. [14]).