A Geostatistical Uncertainty Analysis Package Applied to Groundwater
Flow and Contaminant Transport Modeling
- William L. Wingle,
Eileen P. Poeter, and
Sean A. McKenna
- Department of Geology and Geological Engineering
Colorado School of Mines
- Golden, CO 80401
- Phone: (303)-273-3905
- Fax: (303)-278-8842
- e-mail: firstname.lastname@example.org
Copyright © 1994,1995,1996,1997, Department of Geology and Geological Engineering, Colorado
School of Mines. All Rights Reserved.
- United States Bureau of Reclamation
- United States Army Corp of Engineers, Waterways Experiment Station
- Sandia National Laboratories
PORT TO WINDOWS 95/98/NT: I've finally started the port. This is still going to
take some time, but it will happen. I'm rewritting UNCERT in Java. This has the advantage
of being (in theory) completely platform independent. If I'm careful, the same code should
work on UNIX, Windows, and Macintosh computers without modification or recompiling. I've
roughed out a Java version of plotgraph which I will post soon. By mid-April I'm
committed to have Java versions of vario and variofit available. Stay
The code isn't quite ready for the Macintosh. Apple has not ported Java JDK 1.1.6
which I'm using, and SGI (where I develop), hasn't released a Java JDK 1.2 version (there are
Apple, Sun, and Windows versions). I expect SGI will catch up soon though, and I will have
a common version.
The down side of Java is that it can be SLOW, a 50% performance hit is not unexpected. As
a result, I will not recommend this version for users running on anything less than a
Pentium 166 with 64MB of RAM. My old P60 with 32MB of RAM was very slow. My office P200 with
64MB of RAM is 10 to 20 times faster on some tasks. I think the lack of memory was killing my old machine.
UNCERT has been installed in 43+ countries.
Useful References (Books and Journals).
Useful WWW Links.
Program and Module Descriptions:
UNCERT is a public domain uncertainty analysis and geostatistical software package.
It was developed for evaluating the inherent uncertainty in describing
subsurface geology, hydraulic properties, and the migration of
hazardous contaminants in groundwater flow systems. The package is
well suited for evaluating hazardous waste sites and evaluating
remediation methods, but the package also has many general modules
which are usable by researchers from a wide range of disciplines. The
modules included in UNCERT are briefly described below.
Array: An utility for perform mathmatical operations on one, two, or a
series of 2D or 3D grids.
Block: A visualization package for viewing 3D scattered data and 3D
finite-difference (block/rectangular) grids. Block can also do rough
Contour: A 2D contouring and gradient analysis package.
Grid: A 2D and 3D gridding program. Inverse-Distance, Simple and
Ordinary Kriging, and Trend-Surface Analysis are supported.
Histo: A utility for doing univariate statistics. Histogram, Box and
Wisker Plots, and Probability Plots are supported.
Mainmenu: A simple menu interface to select the other UNCERT modules.
Modmain: A GUI pre- and post-processor for MODFLOW.
MT3Dmain: A GUI pre- and post-processor for MT3D.
Plotgraph: A X-Y graph utility. Regression also supported.
Sisim: A GUI pre- and post-processor for a Soft Indicator Kriging Simulator.
Surface: A 2-1/2D visualization tool for viewing 2D grids as a surface.
Color contouring, shaded relief, and gradient viewing options available.
Vario: A tool to generate experimental semivariograms (1D and 2D) for
irregularly scattered data, and gridded data.
Variofit: A tool for modeling experimental semivariograms.
All the program modules descibed use a Graphical User Interface (GUI)
with pull-down menus, pop-up dialogs, and when approprite graphic
Hardware and Software Requirements:
- UNIX operating system (The software has been ported to IBM RS6000,
SGI, SUN, Solaris, HP, SCO, and Linux OS's. NOTE: Not all platforms
have binaries for the current release)
- X-Window X11/R4 or newer
- Motif 1.1 or newer, or LessTif
- 256 Color Display
- 15 to 35 MB hard disk space depending on OS
- 16 MB RAM
Useful Software (Required if you need to compile UNCERT yourself):
- X11 and Motif Development Toolkits (LessTif can be
substitued for Motif)
- ANSI C Compiler
- FORTRAN 77 Compiler (optional with
- UNCERT is a public domain software package that can be retrieved using
the anonymous ftp site (slate.mines.edu):
- The UNCERT User's Manual is on-line and downloadable. We strongly recommend
you download your own copy if you are doing anything other then browsing. It
has lots of in-lined images, though the ones in the main text are thumbnails.
It is still being converted to HTML, but we
will have the last two chapters and the Appendicies complete soon.
For further information, contact Bill Wingle at
Graphic Text and Many Icons created at
Pixelsight Graphics (FREE Site).
<i>October 2, 2014</i>