CCC-0500 UTMTOX.

1. NAME OR DESIGNATION OF PROGRAM:  UTMTOX.

3. DESCRIPTION OF PROGRAM OR FUNCTION

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 coumpounds, 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.

4. 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.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

6. TYPICAL RUNNING TIME

The sample problem compiles, links, and executes in 5 CPU minutes and requires less than 6000 I/O's. Using the language level 66 option on the IBM VS compiler, the code required 1300K to compile and 1836K to execute the sample problem.

The test case included in this package was run by NEA-DB on an IBM 3084 computer in 3 minutes of CPU time.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS:

10. REFERENCES:

- M.R. Patterson et al.:
  A User's Manual for UTM-TOX, the Unified Transport Model.
  ORNL-6064  (December 1984)

11. MACHINE REQUIREMENTS:  UTMTOX is operable on the IBM 3033 computer.

The test case requires 1660K bytes of IBM 3084 main storage.

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:

MVS/XA (IBM 3084) with compiler FORTRAN-VS LEVEL-66.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

15. NAME AND ESTABLISHMENT OF AUTHORS

          Oak Ridge Laboratory
          Oak Ridge, Tennessee

File name	File description	Records
CCC0500_01.001	Information file	78
CCC0500_01.002	JCL for compile-link-execute sample problem	174
CCC0500_01.003	Soubroutines CVBIBC, IDAY, TIME (Assembler)	113
CCC0500_01.004	Subroutines STAY, ERROR (Dummy routines)	11
CCC0500_01.005	UTMTOX source (Fortran-77 level-66)	9787
CCC0500_01.006	Sample problem input (unit 5)	432
CCC0500_01.007	Point source release data input (unit 9)	28
CCC0500_01.008	Atmospheric stability data input (unit 11)	1177
CCC0500_01.009	Chemistry data input (unit 12)	6
CCC0500_01.010	Stream source & sediment concentr. (unit 18)	11
CCC0500_01.011	Sediment density data (unit 19)	4
CCC0500_01.012	Geometry data (unit 20)	4
CCC0500_01.013	Initial sediment concentration (unit 21)	6
CCC0500_01.014	End sediment concentration (unit 23)	16
CCC0500_01.015	Physical data (unit 24)	2
CCC0500_01.016	Sample problem print (unit 6)	8787
CCC0500_01.017	Sample problem print (unit 8)	6517