Two auxiliary programs

1. Two auxiliary programs • Modelviewer • 3D visualization of input or output • GW-Chart • plots information about model fit etc.

2. ModelViewer– a program for displaying results of ground-water modelsby Paul Hsieh & Richard Winston, USGS

3. ModelViewer • Free USGS program. Obtain from:http://water.usgs.gov/software/ground_water.html • Supports 3D visualization of input or output for a suite of models, including MODFLOW-2005, MODFLOW-2000, MODFLOW-2000 with Ground-Water Transport Process, MODFLOW-96, MOC3D, MODPATH, MT3DMS, SUTRA, and PHAST

4. ModelViewer • Reads in the MODFLOW-2005 ‘name’ file then imports existing model input and output files • Must have run the model and have head output. • You have an executable or a shortcut to ModelViewer in your bin-plotting folder • Open model created in exercise 3.1.

5. ModelViewer Instructions • The next slide provides instructions for using ModelViewer to visualize heads and hydraulic conductivity (K) • The following slide provides instructions for using ModelViewer to visualize an objective-function. Only available when using UCODE_2005. • For more information, see the ModelViewer online help system.

6. ModelViewer Instructions: head and K • Execute ModelViewer. Start with visualizing hydraulic heads. • Under the File menu item, select New. • Model Selection dialog box: select Modflow 2000. • Modflow 2000Data Files dialog box: browse to name file (e.g. ex3.2.nam). • Data Selection dialog box: keep defaults. The model domain appears. • Show menu item: select Solid, then Model Features. • Model Features dialog box: select both model features. • Toolbox menu item: select Geometry and set z to 10 to specify 10x vertical exaggeration. See a floodmap of hydraulic heads. • Show menu item: select Colorbar • Rotate by clicking and dragging any corner. To return to original, under the Action menu item click View From Direction and choose +z. • Now, visualize hydraulic conductivity (K). • Toolbox menu item: select Data and choose K along rows. • Toolbox menu item: select Solid; select Blocky. • Toolbox menu item: select Crop. Reduce the Max for Z until you can see first the hydraulic conductivity of the confining unit, and then of the lower model layer.

7. ModelViewer Instructions: SOS • Only available with UCODE_2005. • Execute ModelViewer. • Under the File menu item, select New. • Model Selection dialog box: select UCODE 2005 - SOS. • UCODEData File dialog box: browse to the ex5.1 directory. Click on the _sos file. • Data Selection dialog box: keep defaults. See the parameter domain. • Show menu item: select Solid. • See the previous slide for ideas for manipulating the graph.

8. Two auxiliary programs • Modelviewer • 3D visualization of input or output • GW-Chart • plots information about model fit etc.

9. GW_Chartby Richard Winston, USGS

10. GW_Chart • Free USGS program. Obtain from: http://water.usgs.gov/software/ground_water.html • Plots results from many of the files for which the filename extension starts with “._” (e.g. ex5.2._b) These are produced by MODFLOW-2000, UCODE_2005, and some other programs. UCODE_2005 calls these “data-exchange” files • GW_Chart is very useful for quick analysis of model fit, sensitivities, parameter value changes by regression, etc.

11. GW_Chart • The user identifies the program that produced the files (MODFLOW-2000 or UCODE_2005) and then navigates to one of the files. GW_Chart assumes the rest are in the same directory and have the same filename prefix. • Must have run the model and have the data-exchange files. • You have an executable or a shortcut to GW_Chart in your bin-plotting folder • Use GW_Chart to produce the following graphs • Composite and dimensionless scaled sensitivities for the exercises in Chapters 4 and 7 • Updated parameter values for exercises in Chapter 5, the residual analysis for the exercises in Chapter 6, and the parameters and their confidence intervals in Chapter 7.

12. Instructions for GW_Chart • Execute GW_Chart. The window on the next slide appears. • Identify the program that produced the files to be plotted in a drop-down menu on the top right (MODFLOW-2000 or UCODE_2005) • Click File on the top left part of the window and then “Open File”. Navigate to the directory containing the files of interest. Open one file. GW_Chart looks for other files in that directory with the same filename prefix and filename extensions that it recognizes. These files are listed in the dropdown menu labeled “File:” in the upper middle part of the window. • The filename extensions and the associated file content are described in the documentation of MODFLOW-2000 (Hill and others, 2000, p. 28-29) and UCODE_2005 (Poeter and Hill, 2005, p. 231-233). • Graphs of other data sets are obtained by choosing other files from the drop-down menu labeled “Files:”

13. Initial GW_Chart window

14. GW_Chart: three issues • What to do if the expected files are not being produced. • MODFLOW-2000: check the file for all observations (Hill+, 2000, p. 27) • UCODE_2005 keyword DataExchange (Poeter and Hill, 2005, p. 58) • Graph options are provided by GW_Chart in a popup window. • Graph produced for the file with extension _ws • Vertical axis used for weighted residuals has a scale using multiples of the standard error of the regression. This has advantages discussed later in the course.