The DROB package is used to compare observed flows at drains with simulated flows computed by MODFLOW. The pane for this package is on the MODFLOW Packages and Programs dialog box under Observations.
Checking the checkbox associated with the DROB package is only possible if the DRN package is activated. Once activated, the user can enter comments regarding the DROB package. The observations of flow at drains cells are specified in the Manage Flow Observations dialog box.
The MODFLOW Listing file will contain a list of the observed values and the simulated equivalents.
