A Lagrangian particle model with chemical reactions: application in real atmosphere. (1st January 2011)

• Record Type: Journal Article
• Authors: Alessandrini, Stefano; Ferrero, Enrico
• Is Part Of: International journal of environment and pollution. Volume 47:Number 1-4(2011)
• Page Start: 97
• Page End: 107
• Publication Date: 2011-01-01
• Subjects: atmospheric dispersion -- NO -- chemistry model -- Lagrangian particle model -- photo-stationary equilibrium; Environmental policy -- Periodicals; Environmental engineering -- Periodicals; Environmental sciences -- Periodicals; Pollution -- Periodicals; 363.73
• Languages: English
• ISSNs: 0957-4352

Abstract

In this work, a Lagrangian particle model able to account for simple chemical reactions between NO and O3 has been improved to consider the photolysis of NO2 . A system of chemical equations is numerically solved on a Eulerian grid, while the particle trajectories are moved in a Lagrangian frame. The NOx emissions of a power plant in real atmosphere, situated in a complex topography environment, have been considered as a test case. The simulated episodes refer to the diurnal time, when the ultraviolet radiation activates the NO2 . Comparisons between NO/NO2 's concentrations ratio are presented in terms of scatter plots and statistical indexes analysis.