PLPROC allows a modeller to create and manipulate parameters that inform hydraulic properties that are represented in a numerical model. In doing this, PLPROC supports PEST in facilitating model-based decision-support which enshrines the principle that a model should encapsulate what we know and quantify what we do not.
This tutorial offers a gentle introduction to PLPROC, demonstrating the use of PLPROC in parameterization of a MODFLOW 6 model with multiple zones and layers using pilot points. As well as PLPROC, this tutorial makes use of the MF62VTK utility from the PEST Groundwater Utilities Suite.