Journal article
An Eulerian transport/transformation/removal model for SO2 and sulfate—I. Model development
Atmospheric environment, Vol.18(5), pp.937-951
01/1984
DOI: 10.1016/0004-6981(84)90070-2
Abstract
A combined transport/chemistry model which simulates the regional distribution of SO2 and sulfate within the lower troposphere is described. The mathematical analysis is based on the coupled three-dimensional advection-diffusion equations for SO2 and sulfate, and incorporates chemical transformations as well as the physical phenomena of dry deposition at the surface. The analysis also considers spatial variations in topography and spatial and temporal variations in both the mixing layer heights and the wind field. Based on the results from a series of numerical experiments, the dynamic model employs a Galerkin method for the numerical solution of the partial differential equations.
A SO2 photochemical oxidation mechanism is incorporated into the transport model. The SO2 photochemical oxidation rate is based on a set of 27 reactions used to estimate the hydroxyl and peroxyl radical concentrations. The kinetic mechanism has been tested in simulations of smog chamber studies and yields realistic concentrations and conversion rates in model simulations of both urban and natural tropospheres.
Other major facets treated in the formulation of the model include the interpretation and use of data available on dry deposition and the development of procedures to calculate meteorological model inputs (e.g., eddy diffusivities, dry deposition velocities, the three components of wind velocity, etc.) from routinely measured meteorological data. Simulations using the analysis are presented in a companion paper.
Details
- Title: Subtitle
- An Eulerian transport/transformation/removal model for SO2 and sulfate—I. Model development
- Creators
- Gregory R CarmichaelLeonard K Peters
- Resource Type
- Journal article
- Publication Details
- Atmospheric environment, Vol.18(5), pp.937-951
- DOI
- 10.1016/0004-6981(84)90070-2
- ISSN
- 0004-6981
- Language
- English
- Date published
- 01/1984
- Academic Unit
- Civil and Environmental Engineering; Nursing; Chemical and Biochemical Engineering
- Record Identifier
- 9984003977802771
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