Author(s)

C. Ziegenbein, I.J. Ackermann & A. Ebel

Abstract

The treatment of aerosols in the EURAD model: results from recent developments C. Ziegenbein, I.J. Ackermann, A. Ebel Institute for Geophysics and Meteorology, University of Cologne, D-50923 Cologne, Germany ABSTRACT Formation of aerosols by gas-to-particle conversion is an important part of the chemical system of the earth's atmosphere. However, until recently, regional air quality modeling systems have not explicitly considered ae- rosol generating processes. A simple parameterization of the formation of ammonium nitrate and ammonium sulfate aerosols has been developed for the use in a complex chemistry transport model within the framework of EURAD. The parameterization has been applied to the modeling of an air pollution episode of about one week in October 1990. The results of the model simulation clearly show the importance of aerosol chemistry for the transport and deposition of nitrogen species. By comparison with obser- vations it can be shown that the m

Keywords