You have to specify the hydrodynamic conditions at a certain reference depth. The wave climate for the Profile Evolution tool is described in a time series data file that contains 5 items.
The reference depth describes the condition where the wave conditions are valid. The depth may be larger than is present in the cross-shore profile, but it is not advisable to have a smaller depth than the one defined in the first grid point of the profile.
A description of the file representing the wave climate is given in the following section, Profile Evolution Hydrodynamics.