Date : 03/24/97
Description : R-UNSAT Computer code
Accompanying report: Documentation of R-UNSAT, A Computer Model for the Simulation of Reactive, Multispecies Transport in the Unsaturated Zone, by M.A. Lahvis and A.L. Baehr, 1997, U.S. Geological Survey Open-File Report 97-630, 104 p.
The files contained on the web page are as follows:
Lahvis, M. A., and Baehr, A. L., 1997, Documentation of R-UNSAT, A computer model for the simulation of reactive, multispecies transport in the unsaturated zone, U.S. Geological Survey Open-File Report 97-630, 104 p.
This report describes the development and application of the computer code R-UNSAT.
The computer model source code written in Fortran 77. It is assumed that users have access to a Fortran compiler. Users who do not have access to a Fortran compiler may request executable files by contacting Matthew A.
Lahvis or Arthur L. Baehr at (609-771-3900).
Installation and execution procedure will depend on your computing system, however a general procedure is outlined as follows:
1. Download files from the internet into a directory created for
R-UNSAT on your computer.
2. Check default settings. If your Fortran compiler
requires an extension for Fortran code files other than
.FOR then rename the files accordingly. You may need to
change the input and output unit number settings in
R-UNSAT.FOR for compatibility with your computer.
The sections of code defining these units are clearly
identified in the source codes and are identified in the
documentation in Section 3.
3. Compile and load the source code. The following sequence of
commands are necessary to compile and load a program if using a
F77 RUNSAT.F77 -FRN -SAVE -BIG
& DATA SEG -LOAD
and the following command is necessary if using a Microsoft Fortran
4. Execute the program. In a mainframe environment the run command
is as follows:
In a DOS environment (it is not a Windows program), the command is
Lahvis, M.A., and Baehr, A.L., 1998, Simulating transport of volatile organic compounds in the unsaturated zone using the computer model
R-UNSAT, U.S. Geological Survey Fact Sheet FS-019-98, January, 1998,
This fact sheet describes the transport model and demonstrates its applications to point- and non-point source contamination.
Questions, requests for executable versions of the code, and
copies of the documentation should be temporarily directed to either:
Matthew A. Lahvis or Arthur L. Baehr
U.S. Geological Survey
810 Bear Tavern Road
West Trenton, New Jersey 08628