Coupled Chemical Kinetics And Dry Deposition
In Turbulent Flow
Author(s)
E.G. McDonald-Duller & H.M. Liljestrand
Abstract
Dry deposition is typically modeled as an independent process for each
species. This approach may be inaccurate downwind of industrialized urban
areas with rapid photochemistry. The current sturdy compares three Eulerian
modeling approaches: a first-order closure model with independent transport
and deposition; a first-order closure model with gas-phase reactions; and, a
second-order flux budget model with gas-phase reactions. Two scenarios from
a polluted industrial area are considered: ozone nonattainment and early
morning ozone attainment. Vertical concentration and flux profiles for nitrogen
oxides, ozone, peroxyacetylnitrate, nitric acid, and aldehydes from the three
modeling approaches are compared for each scenario. Damkohler numbers are
calculated at three heights to determine species sensitivity to th
Keywords
Related Book
Other papers in this volume
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