A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mechanistic analysis of precipitation scavenging using a one-dimensional, timevariant model
Abstract A one-dimensional, time-variant model of a storm system is presented. The model is coded in modular form, and as a consequence it contains a great deal of flexibility for general interpretive use. Besides describing cloud and precipitation processes, the model possesses the capability to predict the precipitationscavenging of both reactive and nonreactive pollutants. Example computations are presented to illustrate the code's application for scavenging analysis. This example is based upon an orographie rain storm, and utilizes highly parameterized descriptions of cloud and precipitation phenomena. The primary pollutants of interest are SO2 and sulfate. Sulfate aerosol is assumed to be scavenged by a nucleation mechanism, while SO2 scavenging proceeds via the aqueous-phase reaction SO2 + O3→ SO4 2−. Sulfate concentrations and deposition patterns obtained via these example calculations are not set forth as definitive characterizations of the scavenging process. They do, however, reflect some of the behavior commonly exhibited by real storm systems. More detailed application of this basic model is suggested for use in the future analysis of wet-deposition phenomena.
Mechanistic analysis of precipitation scavenging using a one-dimensional, timevariant model
Abstract A one-dimensional, time-variant model of a storm system is presented. The model is coded in modular form, and as a consequence it contains a great deal of flexibility for general interpretive use. Besides describing cloud and precipitation processes, the model possesses the capability to predict the precipitationscavenging of both reactive and nonreactive pollutants. Example computations are presented to illustrate the code's application for scavenging analysis. This example is based upon an orographie rain storm, and utilizes highly parameterized descriptions of cloud and precipitation phenomena. The primary pollutants of interest are SO2 and sulfate. Sulfate aerosol is assumed to be scavenged by a nucleation mechanism, while SO2 scavenging proceeds via the aqueous-phase reaction SO2 + O3→ SO4 2−. Sulfate concentrations and deposition patterns obtained via these example calculations are not set forth as definitive characterizations of the scavenging process. They do, however, reflect some of the behavior commonly exhibited by real storm systems. More detailed application of this basic model is suggested for use in the future analysis of wet-deposition phenomena.
Mechanistic analysis of precipitation scavenging using a one-dimensional, timevariant model
Hales, Jeremy (author)
Atmospheric Environment ; 16 ; 1775-1783
1981-11-13
9 pages
Article (Journal)
Electronic Resource
English
Scavenging of atmospheric formaldehyde by wet precipitation
| Online Contents | 1993
Observational study of the scavenging of radon daughters by precipitation from the atmosphere
| Online Contents | 1996
Smick—A scavenging model incorporating chemical kinetics
| Elsevier | 1981