Main Title |
Updating Applied Diffusion Models. |
Author |
Weil, J. C. ;
|
CORP Author |
American Meteorological Society, Boston, MA. ;Martin Marietta Labs., Baltimore, MD.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
Year Published |
1985 |
Report Number |
EPA/600/J-85/327; |
Stock Number |
PB86-171642 |
Additional Subjects |
Atmospheric diffusion ;
Air pollution ;
Turbulent diffusion ;
Models ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-171642 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
22p |
Abstract |
Most diffusion models currently used in air quality applications are substantially out of date with understanding of turbulence and diffusion in the planetary boundary layer. Under a Cooperative Agreement with the Environmental Protection Agency, the American Meteorological Society organized a workshop to help improve the basis of such models, their physics and hopefully their performance. Reviews and recommendations were made on models in three areas: diffusion in the convective boundary layer (CBL), diffusion in the stable boundary layer (SBL), and model uncertainty. Progress has been made in all areas, but it is most significant and ready for application to practical models in the case of the CBL. This has resulted from a clear understanding of the vertical structure and diffusion in the CBL, as demonstrated by laboratory experiments, numerical simulations, and field observations. Understanding of turbulence structure and diffusion in the SBL is less complete and not yet ready for general use in applications. |
Supplementary Notes |
Pub. in Jnl. of Climate and Applied Meteorology, v24 n11 p1111-1130 Nov 85. Prepared in cooperation with Martin Marietta Labs., Baltimore, MD. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Updating Applied Diffusion Models. |
PUB Date Free Form |
c1985 |
Category Codes |
4B; 68A; 55E |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
612921758 |
Origin |
NTIS |
Type |
CAT |