Author(s)

P. Viaene, W. Debruyn, C. Mensink and J. van Rensbergen

Abstract

Evaluation of a Compact Chemical Mechanism for Photochemical Smog Modelling A contribution to subproject GLOREAM P. Viaene, W Debruyn, C Mensink and J van Rensbergen A compact chemical mechanism The compact mechanism evaluated in this study is used in the EUROS model. EUROS is an Eulerian grid model that was originally developed at the Dutch National Institute of Public Health (RIVM). The model is intended for long term simulations and should be applicable on a midrange workstation. The chemical mechanism that was derived from the larger EMEP/MSC-W scheme (Barrett and Berge, 1996) is therefore limited to 17 reactions. Nine of these are inorganic reactions in which only Os, OH, NO, NO] , NO] aerosol, HNOg, SO: and SO4 aerosol are considered. In the EUROS scheme the reactions with the NO] radical and ^Os from the original EMEP scheme were lumped into one reaction in which NO: is converted to HNOs. Only CH/^ CzHj, €2%, €3%, C^Hi o, x

Keywords