The objective function specification is used as a measure of comparison of measured results with observations for the calibration. Example 1 is only a simple illustrative example aiming to illustrate how to use the auto-calibration tool. Measurements in this case are not real but consist of output results of a previous MIKE SHE simulation. AutoCal evaluates objective functions by comparing dfs0 files therefore real observations should normally be used as target files.
AutoCal minimises an aggregation of one or more objective functions. Each objective function may consist of several so-called output measures. For the present example one objective function (MyFunc) is defined. MyFunc is specified as weighted sum and it is given a weight value of 1.
MyOutPut is specified as output measure. The measure is specified as the RMSE of the difference between the simulated SZ head elevation and the measured SZ head elevation in the same point within the model domain. By specifying the weight as 1 and the function name as MyFunc the measure will contribute to the objective function called MyFunc with a weight of 1.
No aggregation of objective functions is applied since only one objective function is defined.