GMS:MODFLOW-USG Observations

MODFLOW-USG does not support an observation process as MODFLOW 2000 and MODFLOW 2005. When using MODFLOW-USG in GMS a series of PEST utilities are run to calculate the model computed values at observations. The inputs to these utilities are managed in the MODFLOW-USG Observation dialog. This dialog contains information for Head observations as well as flow observations. The head and flow observations can be steady state or transient depending on the type of MODFLOW-USG simulation.