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OLS Field Name OLS Field Data
Main Title DEGADIS (DEnse GAs DISpersion) Model, Version 2.1 (for Microcomputers).
Author Guinnup, D. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
Publisher 1989
Year Published 1989
Report Number EPA/SW/DK-90/034;
Stock Number PB90-502253
Additional Subjects Model-simulation ; Air pollution ; Dispersions ; Plumes ; Gases ; Mathematical models ; Dilution ; Trajectories ; Diskettes ; Chemical effluents ; L=Fortran ; H=DEC VAX
Library Call Number Additional Info Location Last
NTIS  PB90-502253 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/27/1990
Collation 1 diskette
Abstract An improved Jet-Plume model has been interfaced with DEGADIS to provide for prediction of the trajectory and dilution of elevated dense gas jets to ground contact. DEGADIS predicts the ensuing ground-level plume dispersion. The Jet-Plume model provides for: automatic adjustment of integration step-size (using the Runge-Kutta-Gill method as in DEGADIS): elliptical plume shape (cross-section), with the Pasquill-Gifford plume dispersion coefficient representation of atmospheric turbulent entrainment; user specification of averaging time; ground reflection when the plume (lower) boundary reaches ground level; and application to scenarios where the plume remains aloft. The model should be uploaded via modem from a PC terminal to host a VAX computer, and several files must then be renamed prior to compilation and execution. The program is written in FORTRAN for compilation and execution on a DEC VAX Computer.
Supplementary Notes Supersedes PB88-202379. Computer: DEC VAX. Language: FORTRAN. The program is written in FORTRAN for compilation and execution on a DEC VAX computer. Implementation on any other system may be attempted at the risk of the user. To facilitate dissemination of the model, it is being provided on diskette.
Availability Notes The software is contained on one 360K, 5 1/4-inch diskette, double density. File format: Executable code only. The diskettes are in the ASCII format. Price includes documentation, PB90-213893.
NTIS Title Notes Model-Simulation.
Category Codes 68A#; 91A; 43F; 62
NTIS Prices CP D01
Primary Description 200/04
Document Type NT
Cataloging Source NTIS/MT
Control Number 022225307
Origin NTIS
Type CAT