# Presentation: 342288

## Two auxiliary programs

- Modelviewer
- 3D visualization of input or output
- GW-Chart
- plots information about model fit etc.

## ModelViewer– a program for displaying results of ground-water modelsby Paul Hsieh & Richard Winston, USGS

## 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

## 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.

## 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.

## 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 2000** **Data 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.

## 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**.
**UCODE** **Data 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.

## Two auxiliary programs

- Modelviewer
- 3D visualization of input or output
- GW-Chart
- plots information about model fit etc.

## GW_Chartby Richard Winston, USGS

## 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.

## 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.

## 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:”

- Initial GW_Chart window

## 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.