| Main Title |
Optimizing an Air Quality Model's Algorithms for the Cray Y-MP and the MASPAR MP-1. |
| Author |
Young, J. O. ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div. |
| Publisher |
1994 |
| Year Published |
1994 |
| Report Number |
EPA/600/A-94/177; |
| Stock Number |
PB95-124780 |
| Additional Subjects |
Air quality ;
Computerized simulation ;
Air pollution control ;
Diffusion ;
Chemical compounds ;
Algorithms ;
Fortran ;
Steady state ;
Revisions ;
Vapor phases ;
Chemical reactions ;
Environmental transport ;
Ozone ;
Regional Oxidant Model ;
Cray Y-MP computer ;
MasPar MP-1 computer ;
Quasi-Steady State Approximate
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB95-124780 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
The Regional Oxidant Model (ROM) has been developed and enhanced over the past decade by the U.S. Environmental Protection Agency (EPA) in response to the need for an appropriate simulation model capable of simulating multi-day chemical effects and the long-range transport of ozone and its percursors. The main purpose of the model is to test the effectiveness of emission control strategies on regional and urban airshed ozone concentrations. The EPA currently uses ROM2.2 to address many issues related to the 1990 revisions of the Clean Air Act with different modeling regions including the SUPROXA domain that is essentially the eastern half of the U.S. and southeast Canada. The large file sizes and amount of processing creates a proportionately large demand for model throughput and other computational resources, resulting in a critical need to have an optimized version of the core model on a high performance platform. The paper discusses efforts in optimizing the ROM core model on the Cray Y-MP and subsequently on the MasPar MP-1. |
