Initial Hydraulic condition may be specified as one of the following:
1. Initial equilibrium profile: the pressure head equals the negative elevation head above a water table. The user may also replace the upper part of the equilibrium profile by a constant minimum pressure head. (see figure).
2. Initial pressure head: Specified by drawing contour lines of equal pressure head (see figure).
3. Initial moisture content: Specified by drawing contour lines of equal moisture content (see figure). (This option is not available when the hydraulic characteristic function is given by tabular data.)
Next step: Specify initial temperature
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