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processing suite of programs. Program ModGUI allows selection and editing of control files, <br />launching of the pre- orpost-processor, and examination of log files. Each step in the process is <br />run individually, however program ModGUI facilitates this process. <br />2.4 Model Execution and Calibration Process <br />A complete set of MODFLOW input files is currently assembled from three sources: GMS, the <br />stream package processing suite of DMIs described in Section 2.3.4, and program StatePP. <br />These input files are then run in the State's version of MODFLOW. During the calibration <br />process, where parameters are changed, relevant programs may need to be re-run to generate new <br />MODFLOW input files. <br />2.5 Processing Output from the Groundwater Model <br />A series ofpost-processing programs are used to examine model results or prepare graphics. <br />Most of these packages are written in FORTRAN and have source code and documentation <br />available. Each of these packages are run individually using control files, either on a stand-alone <br />basis, or launched using program ModGUI. The major programs and their function are described <br />below. <br />^ GMS may be used to examine modeled heads and calibration statistics. <br />^ PM-Diamond operates directly on MODFLOW output files and is used to generate head and <br />flow contour maps, graphs of flow trends, head maps, and to generate report figures. This is a <br />commercial software package licensed by the State from Principia Mathematica that runs on <br />the Windows platform under a UNIX emulator. <br />^ ModDel calculates difference between individual simulations and operates directly on <br />MODFLOW output files. <br />^ ModEt partitions calculated evapotranspiration fluxes into native vegetation, subirrigated <br />meadow and subirrigated alfalfa components. <br />^ ModSum partitions calculated stream fluxes into individual streams and reaches. <br />^ ModBal summarizes water budget information for individual simulations by zones and layers, <br />breaking out the individual components. <br />^ ModParm summarizes aquifer parameters by zone for reporting. <br />^ ModCon summarizes a MODFLOW stream package output file for reports. <br />^ ModRepEt replaces the standard MODFLOW evapotranspiration package input file with one <br />that is independent of depth. <br />^ ArcView is used to visualize data and present some report figures. <br />