Record Display for the EPA National Library Catalog


Main Title Building a Pollutant Reservoir Aloft by Cumulus Clouds.
Author Ching, J. K. S. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1987
Report Number EPA/600/D-87/032;
Stock Number PB87-145868
Additional Subjects Air pollution ; Atmospheric models ; Cumulus clouds ; Contaminants ; Concentration(Composition) ;
Library Call Number Additional Info Location Last
NTIS  PB87-145868 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
A diagnostic analyses is presented to assess the impact of non-precipitating clouds on rates of change of pollutant concentration both in the mixed layer and in the free troposphere. This analyses is based on a coupled two layer (mixed and free tropospheric) conservation of pollutant species model which distinguishes the role of active or venting type clouds from the forced, or fair weather cumulus clouds. The study examines the sensitivity of the modeled rates of change of pollutant predictions in the mixed layer and in the free troposphere to the method by which the vertical exchange of these venting class clouds is modeled. This analyses focus on the vertical redistribution process, the heterogeneous conversion process which are known to be rapid and important is ignored in the study by considering only total pollutant concentration.