TWODAN Calibration Plots

TWODAN provides posting plots that let you quickly assess a model's calibration to observations of hydraulic head. These plots post the difference between modeled head and target head at the coordinates of user-specified observation points. If the simulated head is too high the difference is plotted in red; if the head is too low it is plotted in green. By visual inspection, you can quickly identify spatial patterns in the differences and postulate appropriate modifications to the model based on the patterns.

Calibration Plot Showing Differences in
Modeled/Observed Head at Target Locations

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