Farm Process Options

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This pane is a subpane of the FMP: Farm Process pane on the MODFLOW Packages and Programs dialog box.

Precipitation assignment method

ModelMuse has an option to determine how objects are used to define the precipitation rate. If Objects overwrite values of previous objects is selected and more than one object defines the precipitation rate for a cell, only the precipitation rate from the last object that assigns a value will be used. The rates from previous objects will be ignored. If Sum values of all objects is used, the precipitation rates from all the objects that assign a rate to a cell will be added together. The latter option is helpful for combining precipitation due to different processes. For example, it might be convenient to define different types of precipitation with separate objects and then have the two added together.

Crop irrigation requirement (AUX NOCIRNOQ)

This option allows the user to specify that whether or not Farm Wells should be pumped if there is no irrigation requirement in that cell.

Recompute farm flows for each time step (RECOMP_Q_BD)

By default, the head-dependant flow terms in the Farm Process is not recomputed again after the last iteration. However, because of interactions between the Farm Process and other packages, calculating the head-dependant flow terms in the Farm Process after the last iteration can result in improved accuracy and computation speed. (Schmid and Hanson, 2009, p. 15)

Reset QMAX in MNW1 package in each stress period (AUX QMAXRESET)

If you check this check box, then MODFLOW-OWHM will set the maximum pumping rate back to the QMAX rate specified in the FMP package at the beginning of each stress period.