1. NAME AND TITLE
UTMTOX: Unified Transport Model for Toxic Materials.
Oak Ridge National Laboratory, Oak Ridge, Tennessee.
3. CODING LANGUAGE AND COMPUTER
Fortran; Vax 8600.
4. NATURE OF PROBLEM SOLVED
UTMTOX is a unified transport model for toxic materials. It combines hydrologic, atmospheric, and sediment transport in one computer code and extends the scope to predict the transport of not only trace metals but also many chemical compounds, including organics.
UTMTOX is capable of calculating 1) the atmospheric dispersion of up to 20 chemicals from a
maximum of 10 point, 10 line, and 10 area sources; 2) deposition of one chemical at a time in both
wet and dry form on foliage or the surface of the earth; 3) surface flow and erosion; 4) percolation
through the soil to a stream channel; and 5) flow in the stream channel to the outfall of a watershed.
5. METHOD OF SOLUTION
UTMTOX calculates rates of flux of chemicals from release to the atmosphere, through deposition
on a watershed, infiltration, and runoff from the soil to flow in the stream channel and the associated
sediment transport. From these values, mass balances can be established, budgets for the chemical can
be made, and concentrations in many environmental compartments can be estimated. Since the
coupling is established among three major submodels, they can share data.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The sample problem compiles, links, and executes in 7 wall clock minutes.
8. COMPUTER HARDWARE REQUIREMENTS
UTMTOX is operable on the Vax 8600 computer.
9. COMPUTER SOFTWARE REQUIREMENTS
UTMTOX runs under the VMS Version 4.5 Operating System and compiles using the Fortran
Version 4.6 Compiler with the default /F77 and /Optimize switches.
M. R. Patterson, T. J. Sworski, A. L. Sjoreen, M. G. Browman, C. C. Coutant, D. M. Hetrick,
B. D. Murphy, R. J. Raridon, "A User's Manual for UTM-TOX, the Unified Transport Model,"
ORNL-6064 (December 1984).
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (1.2MB) DOS diskette which contains the source
code and sample problem input and output.
12. DATE OF ABSTRACT
July 1986, August 1987.
KEYWORDS: AIRBORNE; NUCLIDE TRANSPORT; LIQUID PATHWAY