1. NAME AND TITLE
AIRBORNE: Airborne Contaminants Dispersion Code.
Oak Ridge National Laboratory, Oak Ridge, Tennessee.
3. CODING LANGUAGE AND COMPUTER
FORTRAN IV; IBM 360/370.
4. NATURE OF PROBLEM SOLVED
AIRBORNE computes distributions of airborne pollutants. It was designed to simulate the
effects of proposed charges on the environment, providing a means of modeling and displaying the
effect of a source of airborne pollutants on a particular locality. A simple Gaussian plume model
5. METHOD OF SOLUTION
AIRBORNE requires data describing a latitude and longitude grid on a section of the earth's
surface and data describing and locating a pollutant source. All sources are assumed to be at the
center of the cell in which they are located. It calculates the great circle distance (assuming the
earth to be a sphere) from the center of the source cell to the center of a receiving cell and the
compass bearing of the great circle at the source. The source strength, effective stack height, wind
speed, and wind probability are used to calculate the concentration at the center of the receiving
cell due to this particular source. This process is repeated for each cell in the grid.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The packaged sample problem took 22 seconds on the IBM 360/75.
8. COMPUTER HARDWARE REQUIREMENTS
AIRBORNE was designed for the IBM 360 series computers, using 90 K core storage.
9. COMPUTER SOFTWARE REQUIREMENTS
A FORTRAN IV compiler is required.
R. L. Stephenson, "A Program for Computing the Dispersion of Airborne Contaminants,"
ORNL-TM-4674 (September 1974).
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
KEYWORDS: ENVIRONMENTAL DOSE; AIRBORNE; GAUSSIAN PLUME MODEL